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@@ -153,7 +154,7 @@ <h3>constructor</h3>
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 								<p>Inherited from CreateDestroyStartStop.constructor</p>
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L73">src/DB.ts:73</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L74">src/DB.ts:74</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -208,7 +209,7 @@ <h3><span class="tsd-flag ts-flagProtected">Protected</span> _db</h3>
 					<div class="tsd-signature tsd-kind-icon">_db<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">LevelDB</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">, </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">&gt;</span></div>
 					<aside class="tsd-sources">
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L70">src/DB.ts:70</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L71">src/DB.ts:71</a></li>
 						</ul>
 					</aside>
 				</section>
@@ -218,7 +219,7 @@ <h3><span class="tsd-flag ts-flagProtected">Protected</span> <span class="tsd-fl
 					<div class="tsd-signature tsd-kind-icon">crypto<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol">{ </span>key<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">; </span>ops<span class="tsd-signature-symbol">: </span><a href="../modules/types.html#Crypto" class="tsd-signature-type" data-tsd-kind="Type alias">Crypto</a><span class="tsd-signature-symbol"> }</span></div>
 					<aside class="tsd-sources">
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L63">src/DB.ts:63</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L64">src/DB.ts:64</a></li>
 						</ul>
 					</aside>
 					<div class="tsd-type-declaration">
@@ -239,7 +240,7 @@ <h3><span class="tsd-flag ts-flagReadonly">Readonly</span> db<wbr>Path</h3>
 					<div class="tsd-signature tsd-kind-icon">db<wbr>Path<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div>
 					<aside class="tsd-sources">
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L61">src/DB.ts:61</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L62">src/DB.ts:62</a></li>
 						</ul>
 					</aside>
 				</section>
@@ -249,7 +250,7 @@ <h3><span class="tsd-flag ts-flagProtected">Protected</span> fs</h3>
 					<div class="tsd-signature tsd-kind-icon">fs<span class="tsd-signature-symbol">:</span> <a href="../interfaces/types.FileSystem.html" class="tsd-signature-type" data-tsd-kind="Interface">FileSystem</a></div>
 					<aside class="tsd-sources">
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L67">src/DB.ts:67</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L68">src/DB.ts:68</a></li>
 						</ul>
 					</aside>
 				</section>
@@ -259,7 +260,7 @@ <h3><span class="tsd-flag ts-flagProtected">Protected</span> logger</h3>
 					<div class="tsd-signature tsd-kind-icon">logger<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Logger</span></div>
 					<aside class="tsd-sources">
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L68">src/DB.ts:68</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L69">src/DB.ts:69</a></li>
 						</ul>
 					</aside>
 				</section>
@@ -269,7 +270,7 @@ <h3><span class="tsd-flag ts-flagProtected">Protected</span> transaction<wbr>Cou
 					<div class="tsd-signature tsd-kind-icon">transaction<wbr>Counter<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">number</span><span class="tsd-signature-symbol"> = 0</span></div>
 					<aside class="tsd-sources">
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L71">src/DB.ts:71</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L72">src/DB.ts:72</a></li>
 						</ul>
 					</aside>
 				</section>
@@ -279,7 +280,7 @@ <h3><span class="tsd-flag ts-flagProtected">Protected</span> <span class="tsd-fl
 					<div class="tsd-signature tsd-kind-icon">worker<wbr>Manager<span class="tsd-signature-symbol">:</span> <a href="../modules/types.html#DBWorkerManagerInterface" class="tsd-signature-type" data-tsd-kind="Type alias">DBWorkerManagerInterface</a></div>
 					<aside class="tsd-sources">
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L69">src/DB.ts:69</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L70">src/DB.ts:70</a></li>
 						</ul>
 					</aside>
 				</section>
@@ -347,7 +348,7 @@ <h3>db</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L93">src/DB.ts:93</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L94">src/DB.ts:94</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Readonly</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">LevelDB</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">, </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">&gt;</span></h4>
@@ -367,7 +368,7 @@ <h3>batch</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L307">src/DB.ts:307</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L318">src/DB.ts:318</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -385,6 +386,23 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</
 						</li>
 					</ul>
 				</section>
+				<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-protected">
+					<a name="canaryCheck" class="tsd-anchor"></a>
+					<h3><span class="tsd-flag ts-flagProtected">Protected</span> canary<wbr>Check</h3>
+					<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-protected">
+						<li class="tsd-signature tsd-kind-icon">canary<wbr>Check<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">&gt;</span></li>
+					</ul>
+					<ul class="tsd-descriptions">
+						<li class="tsd-description">
+							<aside class="tsd-sources">
+								<ul>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L686">src/DB.ts:686</a></li>
+								</ul>
+							</aside>
+							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">&gt;</span></h4>
+						</li>
+					</ul>
+				</section>
 				<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class">
 					<a name="clear" class="tsd-anchor"></a>
 					<h3>clear</h3>
@@ -395,7 +413,7 @@ <h3>clear</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L508">src/DB.ts:508</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L514">src/DB.ts:514</a></li>
 								</ul>
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 							<div class="tsd-comment tsd-typography">
@@ -424,7 +442,7 @@ <h3>count</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L524">src/DB.ts:524</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L530">src/DB.ts:530</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -447,7 +465,7 @@ <h3>del</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L284">src/DB.ts:284</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L295">src/DB.ts:295</a></li>
 								</ul>
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 							<div class="tsd-comment tsd-typography">
@@ -476,7 +494,7 @@ <h3>deserialize<wbr>Decrypt</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L598">src/DB.ts:598</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L604">src/DB.ts:604</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-type-parameters-title">Type parameters</h4>
@@ -499,7 +517,7 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L602">src/DB.ts:602</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L608">src/DB.ts:608</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -526,7 +544,7 @@ <h3>destroy</h3>
 							<aside class="tsd-sources">
 								<p>Inherited from CreateDestroyStartStop.destroy</p>
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L126">src/DB.ts:126</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L137">src/DB.ts:137</a></li>
 								</ul>
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 							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">&gt;</span></h4>
@@ -544,7 +562,7 @@ <h3>dump</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L536">src/DB.ts:536</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L542">src/DB.ts:542</a></li>
 								</ul>
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 							<div class="tsd-comment tsd-typography">
@@ -567,7 +585,7 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</
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 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L540">src/DB.ts:540</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L546">src/DB.ts:546</a></li>
 								</ul>
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 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -594,7 +612,7 @@ <h3>get</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L183">src/DB.ts:183</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L194">src/DB.ts:194</a></li>
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 							<div class="tsd-comment tsd-typography">
@@ -623,7 +641,7 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</
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 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L187">src/DB.ts:187</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L198">src/DB.ts:198</a></li>
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 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -652,7 +670,7 @@ <h3>iterator</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L374">src/DB.ts:374</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L385">src/DB.ts:385</a></li>
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 							<div class="tsd-comment tsd-typography">
@@ -676,7 +694,7 @@ <h4 class="tsd-returns-title">Returns <a href="../modules/types.html#DBIterator"
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L378">src/DB.ts:378</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L389">src/DB.ts:389</a></li>
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 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -693,7 +711,7 @@ <h4 class="tsd-returns-title">Returns <a href="../modules/types.html#DBIterator"
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L382">src/DB.ts:382</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L393">src/DB.ts:393</a></li>
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 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -710,7 +728,7 @@ <h4 class="tsd-returns-title">Returns <a href="../modules/types.html#DBIterator"
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L386">src/DB.ts:386</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L397">src/DB.ts:397</a></li>
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 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -737,7 +755,7 @@ <h3>put</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L236">src/DB.ts:236</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L247">src/DB.ts:247</a></li>
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 							<div class="tsd-comment tsd-typography">
@@ -763,7 +781,7 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</
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-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L241">src/DB.ts:241</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L252">src/DB.ts:252</a></li>
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 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -793,7 +811,7 @@ <h3>serialize<wbr>Encrypt</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L564">src/DB.ts:564</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L570">src/DB.ts:570</a></li>
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 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -810,7 +828,7 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</
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 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L565">src/DB.ts:565</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L571">src/DB.ts:571</a></li>
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 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -836,7 +854,7 @@ <h3>set<wbr>Worker<wbr>Manager</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L139">src/DB.ts:139</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L150">src/DB.ts:150</a></li>
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 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -859,7 +877,7 @@ <h3><span class="tsd-flag ts-flagProtected">Protected</span> setup<wbr>Db</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L639">src/DB.ts:639</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L645">src/DB.ts:645</a></li>
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 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -876,21 +894,15 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</
 					<a name="setupRootLevels" class="tsd-anchor"></a>
 					<h3><span class="tsd-flag ts-flagProtected">Protected</span> setup<wbr>Root<wbr>Levels</h3>
 					<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-protected">
-						<li class="tsd-signature tsd-kind-icon">setup<wbr>Root<wbr>Levels<span class="tsd-signature-symbol">(</span>db<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">LevelDB</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">, </span><span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">&gt;</span></li>
+						<li class="tsd-signature tsd-kind-icon">setup<wbr>Root<wbr>Levels<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">&gt;</span></li>
 					</ul>
 					<ul class="tsd-descriptions">
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L675">src/DB.ts:675</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L681">src/DB.ts:681</a></li>
 								</ul>
 							</aside>
-							<h4 class="tsd-parameters-title">Parameters</h4>
-							<ul class="tsd-parameters">
-								<li>
-									<h5>db: <span class="tsd-signature-type">LevelDB</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">, </span><span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">&gt;</span></h5>
-								</li>
-							</ul>
 							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">&gt;</span></h4>
 						</li>
 					</ul>
@@ -906,7 +918,7 @@ <h3>start</h3>
 							<aside class="tsd-sources">
 								<p>Inherited from CreateDestroyStartStop.start</p>
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L97">src/DB.ts:97</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L98">src/DB.ts:98</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -935,7 +947,7 @@ <h3>stop</h3>
 							<aside class="tsd-sources">
 								<p>Inherited from CreateDestroyStartStop.stop</p>
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L120">src/DB.ts:120</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L131">src/DB.ts:131</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">&gt;</span></h4>
@@ -952,7 +964,7 @@ <h3>transaction</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L148">src/DB.ts:148</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L159">src/DB.ts:159</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">ResourceAcquire</span><span class="tsd-signature-symbol">&lt;</span><a href="DBTransaction.default.html" class="tsd-signature-type" data-tsd-kind="Class">default</a><span class="tsd-signature-symbol">&gt;</span></h4>
@@ -969,7 +981,7 @@ <h3>unset<wbr>Worker<wbr>Manager</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L143">src/DB.ts:143</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DB.ts#L154">src/DB.ts:154</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4>
@@ -980,7 +992,7 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					<a name="createDB" class="tsd-anchor"></a>
 					<h3><span class="tsd-flag ts-flagStatic">Static</span> createDB</h3>
 					<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-static">
-						<li class="tsd-signature tsd-kind-icon">createDB<span class="tsd-signature-symbol">(</span>__namedParameters<span class="tsd-signature-symbol">: </span><span class="tsd-signature-symbol">{ </span>crypto<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-symbol">{ </span>key<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">; </span>ops<span class="tsd-signature-symbol">: </span><a href="../modules/types.html#Crypto" class="tsd-signature-type" data-tsd-kind="Type alias">Crypto</a><span class="tsd-signature-symbol"> }</span><span class="tsd-signature-symbol">; </span>dbPath<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol">; </span>fresh<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">boolean</span><span class="tsd-signature-symbol">; </span>fs<span class="tsd-signature-symbol">?: </span><a href="../interfaces/types.FileSystem.html" class="tsd-signature-type" data-tsd-kind="Interface">FileSystem</a><span class="tsd-signature-symbol">; </span>logger<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Logger</span><span class="tsd-signature-symbol"> }</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><a href="DB.default.html" class="tsd-signature-type" data-tsd-kind="Class">default</a><span class="tsd-signature-symbol">&gt;</span></li>
+						<li class="tsd-signature tsd-kind-icon">createDB<span class="tsd-signature-symbol">(</span>__namedParameters<span class="tsd-signature-symbol">: </span><span class="tsd-signature-symbol">{ </span>crypto<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-symbol">{ </span>canary<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">; </span>key<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">; </span>ops<span class="tsd-signature-symbol">: </span><a href="../modules/types.html#Crypto" class="tsd-signature-type" data-tsd-kind="Type alias">Crypto</a><span class="tsd-signature-symbol"> }</span><span class="tsd-signature-symbol">; </span>dbPath<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol">; </span>fresh<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">boolean</span><span class="tsd-signature-symbol">; </span>fs<span class="tsd-signature-symbol">?: </span><a href="../interfaces/types.FileSystem.html" class="tsd-signature-type" data-tsd-kind="Interface">FileSystem</a><span class="tsd-signature-symbol">; </span>logger<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Logger</span><span class="tsd-signature-symbol"> }</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><a href="DB.default.html" class="tsd-signature-type" data-tsd-kind="Class">default</a><span class="tsd-signature-symbol">&gt;</span></li>
 					</ul>
 					<ul class="tsd-descriptions">
 						<li class="tsd-description">
@@ -992,11 +1004,14 @@ <h3><span class="tsd-flag ts-flagStatic">Static</span> createDB</h3>
 							<h4 class="tsd-parameters-title">Parameters</h4>
 							<ul class="tsd-parameters">
 								<li>
-									<h5>__namedParameters: <span class="tsd-signature-symbol">{ </span>crypto<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-symbol">{ </span>key<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">; </span>ops<span class="tsd-signature-symbol">: </span><a href="../modules/types.html#Crypto" class="tsd-signature-type" data-tsd-kind="Type alias">Crypto</a><span class="tsd-signature-symbol"> }</span><span class="tsd-signature-symbol">; </span>dbPath<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol">; </span>fresh<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">boolean</span><span class="tsd-signature-symbol">; </span>fs<span class="tsd-signature-symbol">?: </span><a href="../interfaces/types.FileSystem.html" class="tsd-signature-type" data-tsd-kind="Interface">FileSystem</a><span class="tsd-signature-symbol">; </span>logger<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Logger</span><span class="tsd-signature-symbol"> }</span></h5>
+									<h5>__namedParameters: <span class="tsd-signature-symbol">{ </span>crypto<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-symbol">{ </span>canary<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">; </span>key<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">; </span>ops<span class="tsd-signature-symbol">: </span><a href="../modules/types.html#Crypto" class="tsd-signature-type" data-tsd-kind="Type alias">Crypto</a><span class="tsd-signature-symbol"> }</span><span class="tsd-signature-symbol">; </span>dbPath<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol">; </span>fresh<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">boolean</span><span class="tsd-signature-symbol">; </span>fs<span class="tsd-signature-symbol">?: </span><a href="../interfaces/types.FileSystem.html" class="tsd-signature-type" data-tsd-kind="Interface">FileSystem</a><span class="tsd-signature-symbol">; </span>logger<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Logger</span><span class="tsd-signature-symbol"> }</span></h5>
 									<ul class="tsd-parameters">
 										<li class="tsd-parameter">
-											<h5><span class="tsd-flag ts-flagOptional">Optional</span> crypto<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-symbol">{ </span>key<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">; </span>ops<span class="tsd-signature-symbol">: </span><a href="../modules/types.html#Crypto" class="tsd-signature-type" data-tsd-kind="Type alias">Crypto</a><span class="tsd-signature-symbol"> }</span></h5>
+											<h5><span class="tsd-flag ts-flagOptional">Optional</span> crypto<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-symbol">{ </span>canary<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">; </span>key<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Buffer</span><span class="tsd-signature-symbol">; </span>ops<span class="tsd-signature-symbol">: </span><a href="../modules/types.html#Crypto" class="tsd-signature-type" data-tsd-kind="Type alias">Crypto</a><span class="tsd-signature-symbol"> }</span></h5>
 											<ul class="tsd-parameters">
+												<li class="tsd-parameter">
+													<h5><span class="tsd-flag ts-flagOptional">Optional</span> canary<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Buffer</span></h5>
+												</li>
 												<li class="tsd-parameter">
 													<h5>key<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Buffer</span></h5>
 												</li>
@@ -1101,6 +1116,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</
 							<li class=" tsd-kind-method tsd-parent-kind-class">
 								<a href="DB.default.html#batch" class="tsd-kind-icon">batch</a>
 							</li>
+							<li class=" tsd-kind-method tsd-parent-kind-class tsd-is-protected">
+								<a href="DB.default.html#canaryCheck" class="tsd-kind-icon">canary<wbr>Check</a>
+							</li>
 							<li class=" tsd-kind-method tsd-parent-kind-class">
 								<a href="DB.default.html#clear" class="tsd-kind-icon">clear</a>
 							</li>
diff --git a/docs/classes/DBTransaction.default.html b/docs/classes/DBTransaction.default.html
index 77588962..6135412e 100644
--- a/docs/classes/DBTransaction.default.html
+++ b/docs/classes/DBTransaction.default.html
@@ -416,7 +416,7 @@ <h3>clear</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L309">src/DBTransaction.ts:309</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L307">src/DBTransaction.ts:307</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -439,7 +439,7 @@ <h3>commit</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L358">src/DBTransaction.ts:358</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L356">src/DBTransaction.ts:356</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">&gt;</span></h4>
@@ -456,7 +456,7 @@ <h3>count</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L316">src/DBTransaction.ts:316</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L314">src/DBTransaction.ts:314</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -521,7 +521,7 @@ <h3>dump</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L328">src/DBTransaction.ts:328</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L326">src/DBTransaction.ts:326</a></li>
 								</ul>
 							</aside>
 							<div class="tsd-comment tsd-typography">
@@ -544,7 +544,7 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L332">src/DBTransaction.ts:332</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L330">src/DBTransaction.ts:330</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -570,7 +570,7 @@ <h3>finalize</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L389">src/DBTransaction.ts:389</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L387">src/DBTransaction.ts:387</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">&gt;</span></h4>
@@ -731,7 +731,7 @@ <h3>queue<wbr>Failure</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L353">src/DBTransaction.ts:353</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L351">src/DBTransaction.ts:351</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -766,7 +766,7 @@ <h3>queue<wbr>Success</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L348">src/DBTransaction.ts:348</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L346">src/DBTransaction.ts:346</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-parameters-title">Parameters</h4>
@@ -801,7 +801,7 @@ <h3>rollback</h3>
 						<li class="tsd-description">
 							<aside class="tsd-sources">
 								<ul>
-									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L375">src/DBTransaction.ts:375</a></li>
+									<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/DBTransaction.ts#L373">src/DBTransaction.ts:373</a></li>
 								</ul>
 							</aside>
 							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">&gt;</span></h4>
diff --git a/docs/classes/errors.ErrorDB.html b/docs/classes/errors.ErrorDB.html
index a301f183..19dc7bc5 100644
--- a/docs/classes/errors.ErrorDB.html
+++ b/docs/classes/errors.ErrorDB.html
@@ -100,6 +100,9 @@ <h3>Hierarchy</h3>
 									<li>
 										<a href="errors.ErrorDBDelete.html" class="tsd-signature-type" data-tsd-kind="Class">ErrorDBDelete</a>
 									</li>
+									<li>
+										<a href="errors.ErrorDBKey.html" class="tsd-signature-type" data-tsd-kind="Class">ErrorDBKey</a>
+									</li>
 									<li>
 										<a href="errors.ErrorDBDecrypt.html" class="tsd-signature-type" data-tsd-kind="Class">ErrorDBDecrypt</a>
 									</li>
@@ -503,6 +506,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
 					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
 					</li>
diff --git a/docs/classes/errors.ErrorDBCreate.html b/docs/classes/errors.ErrorDBCreate.html
index caa0de20..be601bb2 100644
--- a/docs/classes/errors.ErrorDBCreate.html
+++ b/docs/classes/errors.ErrorDBCreate.html
@@ -465,6 +465,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
 					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
 					</li>
diff --git a/docs/classes/errors.ErrorDBDecrypt.html b/docs/classes/errors.ErrorDBDecrypt.html
index 456f9825..0a80b933 100644
--- a/docs/classes/errors.ErrorDBDecrypt.html
+++ b/docs/classes/errors.ErrorDBDecrypt.html
@@ -268,7 +268,7 @@ <h3><span class="tsd-flag ts-flagStatic">Static</span> description</h3>
 					<aside class="tsd-sources">
 						<p>Overrides <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#description">description</a></p>
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L28">src/errors.ts:28</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L32">src/errors.ts:32</a></li>
 						</ul>
 					</aside>
 				</section>
@@ -465,6 +465,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
 					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
 					</li>
diff --git a/docs/classes/errors.ErrorDBDelete.html b/docs/classes/errors.ErrorDBDelete.html
index ab6c3a28..03f890a3 100644
--- a/docs/classes/errors.ErrorDBDelete.html
+++ b/docs/classes/errors.ErrorDBDelete.html
@@ -465,6 +465,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
 					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
 					</li>
diff --git a/docs/classes/errors.ErrorDBDestroyed.html b/docs/classes/errors.ErrorDBDestroyed.html
index 868890d2..c58ef15e 100644
--- a/docs/classes/errors.ErrorDBDestroyed.html
+++ b/docs/classes/errors.ErrorDBDestroyed.html
@@ -465,6 +465,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					</li>
 				</ul>
 				<ul class="after-current">
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
 					</li>
diff --git a/docs/classes/errors.ErrorDBKey.html b/docs/classes/errors.ErrorDBKey.html
new file mode 100644
index 00000000..2bf0acc8
--- /dev/null
+++ b/docs/classes/errors.ErrorDBKey.html
@@ -0,0 +1,530 @@
+<!doctype html>
+<html class="default no-js">
+<head>
+	<meta charset="utf-8">
+	<meta http-equiv="X-UA-Compatible" content="IE=edge">
+	<title>ErrorDBKey | @matrixai/db</title>
+	<meta name="description" content="Documentation for @matrixai/db">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<link rel="stylesheet" href="../assets/css/main.css">
+	<script async src="../assets/js/search.js" id="search-script"></script>
+</head>
+<body>
+<header>
+	<div class="tsd-page-toolbar">
+		<div class="container">
+			<div class="table-wrap">
+				<div class="table-cell" id="tsd-search" data-index="../assets/js/search.json" data-base="..">
+					<div class="field">
+						<label for="tsd-search-field" class="tsd-widget search no-caption">Search</label>
+						<input id="tsd-search-field" type="text" />
+					</div>
+					<ul class="results">
+						<li class="state loading">Preparing search index...</li>
+						<li class="state failure">The search index is not available</li>
+					</ul>
+					<a href="../index.html" class="title">@matrixai/db</a>
+				</div>
+				<div class="table-cell" id="tsd-widgets">
+					<div id="tsd-filter">
+						<a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a>
+						<div class="tsd-filter-group">
+							<div class="tsd-select" id="tsd-filter-visibility">
+								<span class="tsd-select-label">All</span>
+								<ul class="tsd-select-list">
+									<li data-value="public">Public</li>
+									<li data-value="protected">Public/Protected</li>
+									<li data-value="private" class="selected">All</li>
+								</ul>
+							</div>
+							<input type="checkbox" id="tsd-filter-inherited" checked />
+							<label class="tsd-widget" for="tsd-filter-inherited">Inherited</label>
+							<input type="checkbox" id="tsd-filter-externals" checked />
+							<label class="tsd-widget" for="tsd-filter-externals">Externals</label>
+						</div>
+					</div>
+					<a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a>
+				</div>
+			</div>
+		</div>
+	</div>
+	<div class="tsd-page-title">
+		<div class="container">
+			<ul class="tsd-breadcrumb">
+				<li>
+					<a href="../modules.html">@matrixai/db</a>
+				</li>
+				<li>
+					<a href="../modules/errors.html">errors</a>
+				</li>
+				<li>
+					<a href="errors.ErrorDBKey.html">ErrorDBKey</a>
+				</li>
+			</ul>
+			<h1>Class ErrorDBKey&lt;T&gt;</h1>
+		</div>
+	</div>
+</header>
+<div class="container container-main">
+	<div class="row">
+		<div class="col-8 col-content">
+			<section class="tsd-panel tsd-type-parameters">
+				<h3>Type parameters</h3>
+				<ul class="tsd-type-parameters">
+					<li>
+						<h4>T</h4>
+					</li>
+				</ul>
+			</section>
+			<section class="tsd-panel tsd-hierarchy">
+				<h3>Hierarchy</h3>
+				<ul class="tsd-hierarchy">
+					<li>
+						<a href="errors.ErrorDB.html" class="tsd-signature-type" data-tsd-kind="Class">ErrorDB</a><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">T</span><span class="tsd-signature-symbol">&gt;</span>
+						<ul class="tsd-hierarchy">
+							<li>
+								<span class="target">ErrorDBKey</span>
+							</li>
+						</ul>
+					</li>
+				</ul>
+			</section>
+			<section class="tsd-panel-group tsd-index-group">
+				<h2>Index</h2>
+				<section class="tsd-panel tsd-index-panel">
+					<div class="tsd-index-content">
+						<section class="tsd-index-section tsd-is-inherited">
+							<h3>Constructors</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-constructor tsd-parent-kind-class tsd-has-type-parameter tsd-is-inherited"><a href="errors.ErrorDBKey.html#constructor" class="tsd-kind-icon">constructor</a></li>
+							</ul>
+						</section>
+						<section class="tsd-index-section ">
+							<h3>Properties</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external"><a href="errors.ErrorDBKey.html#cause" class="tsd-kind-icon">cause</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external"><a href="errors.ErrorDBKey.html#data" class="tsd-kind-icon">data</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external"><a href="errors.ErrorDBKey.html#message" class="tsd-kind-icon">message</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external"><a href="errors.ErrorDBKey.html#name" class="tsd-kind-icon">name</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external"><a href="errors.ErrorDBKey.html#stack" class="tsd-kind-icon">stack</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external"><a href="errors.ErrorDBKey.html#timestamp" class="tsd-kind-icon">timestamp</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-class tsd-is-overwrite tsd-is-static"><a href="errors.ErrorDBKey.html#description" class="tsd-kind-icon">description</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external"><a href="errors.ErrorDBKey.html#prepareStackTrace" class="tsd-kind-icon">prepare<wbr>Stack<wbr>Trace</a></li>
+								<li class="tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external"><a href="errors.ErrorDBKey.html#stackTraceLimit" class="tsd-kind-icon">stack<wbr>Trace<wbr>Limit</a></li>
+							</ul>
+						</section>
+						<section class="tsd-index-section tsd-is-external">
+							<h3>Accessors</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-get-signature tsd-parent-kind-class tsd-is-inherited tsd-is-external"><a href="errors.ErrorDBKey.html#description-1" class="tsd-kind-icon">description</a></li>
+							</ul>
+						</section>
+						<section class="tsd-index-section tsd-is-inherited tsd-is-external">
+							<h3>Methods</h3>
+							<ul class="tsd-index-list">
+								<li class="tsd-kind-method tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external"><a href="errors.ErrorDBKey.html#captureStackTrace" class="tsd-kind-icon">capture<wbr>Stack<wbr>Trace</a></li>
+							</ul>
+						</section>
+					</div>
+				</section>
+			</section>
+			<section class="tsd-panel-group tsd-member-group tsd-is-inherited">
+				<h2>Constructors</h2>
+				<section class="tsd-panel tsd-member tsd-kind-constructor tsd-parent-kind-class tsd-has-type-parameter tsd-is-inherited">
+					<a name="constructor" class="tsd-anchor"></a>
+					<h3>constructor</h3>
+					<ul class="tsd-signatures tsd-kind-constructor tsd-parent-kind-class tsd-has-type-parameter tsd-is-inherited">
+						<li class="tsd-signature tsd-kind-icon">new <wbr>ErrorDBKey&lt;T&gt;<span class="tsd-signature-symbol">(</span>message<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">string</span>, options<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-symbol">{ </span>cause<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">T</span><span class="tsd-signature-symbol">; </span>data<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">POJO</span><span class="tsd-signature-symbol">; </span>timestamp<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Date</span><span class="tsd-signature-symbol"> }</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><a href="errors.ErrorDBKey.html" class="tsd-signature-type" data-tsd-kind="Class">ErrorDBKey</a><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">T</span><span class="tsd-signature-symbol">&gt;</span></li>
+					</ul>
+					<ul class="tsd-descriptions">
+						<li class="tsd-description">
+							<aside class="tsd-sources">
+								<p>Inherited from <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#constructor">constructor</a></p>
+								<ul>
+									<li>Defined in node_modules/@matrixai/errors/dist/AbstractError.d.ts:27</li>
+								</ul>
+							</aside>
+							<h4 class="tsd-type-parameters-title">Type parameters</h4>
+							<ul class="tsd-type-parameters">
+								<li>
+									<h4>T</h4>
+								</li>
+							</ul>
+							<h4 class="tsd-parameters-title">Parameters</h4>
+							<ul class="tsd-parameters">
+								<li>
+									<h5><span class="tsd-flag ts-flagOptional">Optional</span> message: <span class="tsd-signature-type">string</span></h5>
+								</li>
+								<li>
+									<h5><span class="tsd-flag ts-flagOptional">Optional</span> options: <span class="tsd-signature-symbol">{ </span>cause<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">T</span><span class="tsd-signature-symbol">; </span>data<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">POJO</span><span class="tsd-signature-symbol">; </span>timestamp<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Date</span><span class="tsd-signature-symbol"> }</span></h5>
+									<ul class="tsd-parameters">
+										<li class="tsd-parameter">
+											<h5><span class="tsd-flag ts-flagOptional">Optional</span> cause<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">T</span></h5>
+										</li>
+										<li class="tsd-parameter">
+											<h5><span class="tsd-flag ts-flagOptional">Optional</span> data<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">POJO</span></h5>
+										</li>
+										<li class="tsd-parameter">
+											<h5><span class="tsd-flag ts-flagOptional">Optional</span> timestamp<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Date</span></h5>
+										</li>
+									</ul>
+								</li>
+							</ul>
+							<h4 class="tsd-returns-title">Returns <a href="errors.ErrorDBKey.html" class="tsd-signature-type" data-tsd-kind="Class">ErrorDBKey</a><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-type">T</span><span class="tsd-signature-symbol">&gt;</span></h4>
+						</li>
+					</ul>
+				</section>
+			</section>
+			<section class="tsd-panel-group tsd-member-group ">
+				<h2>Properties</h2>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+					<a name="cause" class="tsd-anchor"></a>
+					<h3>cause</h3>
+					<div class="tsd-signature tsd-kind-icon">cause<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">T</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#cause">cause</a></p>
+						<ul>
+							<li>Defined in node_modules/@matrixai/errors/dist/AbstractError.d.ts:20</li>
+						</ul>
+					</aside>
+					<div class="tsd-comment tsd-typography">
+						<div class="lead">
+							<p>Causation of the exception
+							Can be used to know what caused this exception</p>
+						</div>
+					</div>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+					<a name="data" class="tsd-anchor"></a>
+					<h3>data</h3>
+					<div class="tsd-signature tsd-kind-icon">data<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">POJO</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#data">data</a></p>
+						<ul>
+							<li>Defined in node_modules/@matrixai/errors/dist/AbstractError.d.ts:15</li>
+						</ul>
+					</aside>
+					<div class="tsd-comment tsd-typography">
+						<div class="lead">
+							<p>Arbitrary data</p>
+						</div>
+					</div>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+					<a name="message" class="tsd-anchor"></a>
+					<h3>message</h3>
+					<div class="tsd-signature tsd-kind-icon">message<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#message">message</a></p>
+						<ul>
+							<li>Defined in node_modules/typescript/lib/lib.es5.d.ts:974</li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+					<a name="name" class="tsd-anchor"></a>
+					<h3>name</h3>
+					<div class="tsd-signature tsd-kind-icon">name<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#name">name</a></p>
+						<ul>
+							<li>Defined in node_modules/ts-custom-error/dist/custom-error.d.ts:2</li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+					<a name="stack" class="tsd-anchor"></a>
+					<h3><span class="tsd-flag ts-flagOptional">Optional</span> stack</h3>
+					<div class="tsd-signature tsd-kind-icon">stack<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#stack">stack</a></p>
+						<ul>
+							<li>Defined in node_modules/typescript/lib/lib.es5.d.ts:975</li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+					<a name="timestamp" class="tsd-anchor"></a>
+					<h3>timestamp</h3>
+					<div class="tsd-signature tsd-kind-icon">timestamp<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Date</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#timestamp">timestamp</a></p>
+						<ul>
+							<li>Defined in node_modules/@matrixai/errors/dist/AbstractError.d.ts:26</li>
+						</ul>
+					</aside>
+					<div class="tsd-comment tsd-typography">
+						<div class="lead">
+							<p>Timestamp when exception was constructed in milliseconds
+								May contain microseconds in the fractional part
+							Guaranteed to be weakly monotonic</p>
+						</div>
+					</div>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-overwrite tsd-is-static">
+					<a name="description" class="tsd-anchor"></a>
+					<h3><span class="tsd-flag ts-flagStatic">Static</span> description</h3>
+					<div class="tsd-signature tsd-kind-icon">description<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> = &#x27;DB key is incorrect&#x27;</span></div>
+					<aside class="tsd-sources">
+						<p>Overrides <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#description">description</a></p>
+						<ul>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L28">src/errors.ts:28</a></li>
+						</ul>
+					</aside>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external">
+					<a name="prepareStackTrace" class="tsd-anchor"></a>
+					<h3><span class="tsd-flag ts-flagStatic">Static</span> <span class="tsd-flag ts-flagOptional">Optional</span> prepare<wbr>Stack<wbr>Trace</h3>
+					<div class="tsd-signature tsd-kind-icon">prepare<wbr>Stack<wbr>Trace<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol">(</span>err<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Error</span>, stackTraces<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">CallSite</span><span class="tsd-signature-symbol">[]</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol"> =&gt; </span><span class="tsd-signature-type">any</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#prepareStackTrace">prepareStackTrace</a></p>
+						<ul>
+							<li>Defined in node_modules/@types/node/globals.d.ts:11</li>
+						</ul>
+					</aside>
+					<div class="tsd-type-declaration">
+						<h4>Type declaration</h4>
+						<ul class="tsd-parameters">
+							<li class="tsd-parameter-signature">
+								<ul class="tsd-signatures tsd-kind-type-literal tsd-parent-kind-class">
+									<li class="tsd-signature tsd-kind-icon"><span class="tsd-signature-symbol">(</span>err<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">Error</span>, stackTraces<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">CallSite</span><span class="tsd-signature-symbol">[]</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">any</span></li>
+								</ul>
+								<ul class="tsd-descriptions">
+									<li class="tsd-description">
+										<div class="tsd-comment tsd-typography">
+											<div class="lead">
+												<p>Optional override for formatting stack traces</p>
+											</div>
+										</div>
+										<h4 class="tsd-parameters-title">Parameters</h4>
+										<ul class="tsd-parameters">
+											<li>
+												<h5>err: <span class="tsd-signature-type">Error</span></h5>
+											</li>
+											<li>
+												<h5>stackTraces: <span class="tsd-signature-type">CallSite</span><span class="tsd-signature-symbol">[]</span></h5>
+											</li>
+										</ul>
+										<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">any</span></h4>
+									</li>
+								</ul>
+							</li>
+						</ul>
+					</div>
+				</section>
+				<section class="tsd-panel tsd-member tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external">
+					<a name="stackTraceLimit" class="tsd-anchor"></a>
+					<h3><span class="tsd-flag ts-flagStatic">Static</span> stack<wbr>Trace<wbr>Limit</h3>
+					<div class="tsd-signature tsd-kind-icon">stack<wbr>Trace<wbr>Limit<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">number</span></div>
+					<aside class="tsd-sources">
+						<p>Inherited from <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#stackTraceLimit">stackTraceLimit</a></p>
+						<ul>
+							<li>Defined in node_modules/@types/node/globals.d.ts:13</li>
+						</ul>
+					</aside>
+				</section>
+			</section>
+			<section class="tsd-panel-group tsd-member-group tsd-is-external">
+				<h2>Accessors</h2>
+				<section class="tsd-panel tsd-member tsd-kind-get-signature tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+					<a name="description-1" class="tsd-anchor"></a>
+					<h3>description</h3>
+					<ul class="tsd-signatures tsd-kind-get-signature tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+						<li class="tsd-signature tsd-kind-icon"><span class="tsd-signature-symbol">get</span> description<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">string</span></li>
+					</ul>
+					<ul class="tsd-descriptions">
+						<li class="tsd-description">
+							<aside class="tsd-sources">
+								<ul>
+									<li>Defined in node_modules/@matrixai/errors/dist/AbstractError.d.ts:32</li>
+								</ul>
+							</aside>
+							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">string</span></h4>
+						</li>
+					</ul>
+				</section>
+			</section>
+			<section class="tsd-panel-group tsd-member-group tsd-is-inherited tsd-is-external">
+				<h2>Methods</h2>
+				<section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external">
+					<a name="captureStackTrace" class="tsd-anchor"></a>
+					<h3><span class="tsd-flag ts-flagStatic">Static</span> capture<wbr>Stack<wbr>Trace</h3>
+					<ul class="tsd-signatures tsd-kind-method tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external">
+						<li class="tsd-signature tsd-kind-icon">capture<wbr>Stack<wbr>Trace<span class="tsd-signature-symbol">(</span>targetObject<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">object</span>, constructorOpt<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">Function</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">void</span></li>
+					</ul>
+					<ul class="tsd-descriptions">
+						<li class="tsd-description">
+							<aside class="tsd-sources">
+								<p>Inherited from <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#captureStackTrace">captureStackTrace</a></p>
+								<ul>
+									<li>Defined in node_modules/@types/node/globals.d.ts:4</li>
+								</ul>
+							</aside>
+							<div class="tsd-comment tsd-typography">
+								<div class="lead">
+									<p>Create .stack property on a target object</p>
+								</div>
+							</div>
+							<h4 class="tsd-parameters-title">Parameters</h4>
+							<ul class="tsd-parameters">
+								<li>
+									<h5>targetObject: <span class="tsd-signature-type">object</span></h5>
+								</li>
+								<li>
+									<h5><span class="tsd-flag ts-flagOptional">Optional</span> constructorOpt: <span class="tsd-signature-type">Function</span></h5>
+								</li>
+							</ul>
+							<h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</span></h4>
+						</li>
+					</ul>
+				</section>
+			</section>
+		</div>
+		<div class="col-4 col-menu menu-sticky-wrap menu-highlight">
+			<nav class="tsd-navigation primary">
+				<ul>
+					<li class=" ">
+						<a href="../modules.html">Modules</a>
+					</li>
+					<li class=" tsd-kind-module">
+						<a href="../modules/DB.html">DB</a>
+					</li>
+					<li class=" tsd-kind-module">
+						<a href="../modules/DBTransaction.html">DBTransaction</a>
+					</li>
+					<li class="current tsd-kind-module">
+						<a href="../modules/errors.html">errors</a>
+					</li>
+					<li class=" tsd-kind-module">
+						<a href="../modules/index.html">index</a>
+					</li>
+					<li class=" tsd-kind-module">
+						<a href="../modules/types.html">types</a>
+					</li>
+					<li class=" tsd-kind-module">
+						<a href="../modules/utils.html">utils</a>
+					</li>
+				</ul>
+			</nav>
+			<nav class="tsd-navigation secondary menu-sticky">
+				<ul class="before-current">
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDB.html" class="tsd-kind-icon">ErrorDB</a>
+					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBCreate.html" class="tsd-kind-icon">ErrorDBCreate</a>
+					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBDecrypt.html" class="tsd-kind-icon">ErrorDBDecrypt</a>
+					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBDelete.html" class="tsd-kind-icon">ErrorDBDelete</a>
+					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
+					</li>
+				</ul>
+				<ul class="current">
+					<li class="current tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+						<ul>
+							<li class=" tsd-kind-constructor tsd-parent-kind-class tsd-has-type-parameter tsd-is-inherited">
+								<a href="errors.ErrorDBKey.html#constructor" class="tsd-kind-icon">constructor</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+								<a href="errors.ErrorDBKey.html#cause" class="tsd-kind-icon">cause</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+								<a href="errors.ErrorDBKey.html#data" class="tsd-kind-icon">data</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+								<a href="errors.ErrorDBKey.html#message" class="tsd-kind-icon">message</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+								<a href="errors.ErrorDBKey.html#name" class="tsd-kind-icon">name</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+								<a href="errors.ErrorDBKey.html#stack" class="tsd-kind-icon">stack</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+								<a href="errors.ErrorDBKey.html#timestamp" class="tsd-kind-icon">timestamp</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-class tsd-is-overwrite tsd-is-static">
+								<a href="errors.ErrorDBKey.html#description" class="tsd-kind-icon">description</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external">
+								<a href="errors.ErrorDBKey.html#prepareStackTrace" class="tsd-kind-icon">prepare<wbr>Stack<wbr>Trace</a>
+							</li>
+							<li class=" tsd-kind-property tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external">
+								<a href="errors.ErrorDBKey.html#stackTraceLimit" class="tsd-kind-icon">stack<wbr>Trace<wbr>Limit</a>
+							</li>
+							<li class=" tsd-kind-get-signature tsd-parent-kind-class tsd-is-inherited tsd-is-external">
+								<a href="errors.ErrorDBKey.html#description-1" class="tsd-kind-icon">description</a>
+							</li>
+							<li class=" tsd-kind-method tsd-parent-kind-class tsd-is-inherited tsd-is-static tsd-is-external">
+								<a href="errors.ErrorDBKey.html#captureStackTrace" class="tsd-kind-icon">capture<wbr>Stack<wbr>Trace</a>
+							</li>
+						</ul>
+					</li>
+				</ul>
+				<ul class="after-current">
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
+					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBParseKey.html" class="tsd-kind-icon">ErrorDBParse<wbr>Key</a>
+					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBParseValue.html" class="tsd-kind-icon">ErrorDBParse<wbr>Value</a>
+					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBRunning.html" class="tsd-kind-icon">ErrorDBRunning</a>
+					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBTransactionCommitted.html" class="tsd-kind-icon">ErrorDBTransaction<wbr>Committed</a>
+					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBTransactionDestroyed.html" class="tsd-kind-icon">ErrorDBTransaction<wbr>Destroyed</a>
+					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBTransactionNotCommited.html" class="tsd-kind-icon">ErrorDBTransaction<wbr>Not<wbr>Commited</a>
+					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBTransactionRollbacked.html" class="tsd-kind-icon">ErrorDBTransaction<wbr>Rollbacked</a>
+					</li>
+				</ul>
+			</nav>
+		</div>
+	</div>
+</div>
+<footer class="with-border-bottom">
+	<div class="container">
+		<h2>Legend</h2>
+		<div class="tsd-legend-group">
+			<ul class="tsd-legend">
+				<li class="tsd-kind-variable"><span class="tsd-kind-icon">Variable</span></li>
+				<li class="tsd-kind-function"><span class="tsd-kind-icon">Function</span></li>
+				<li class="tsd-kind-function tsd-has-type-parameter"><span class="tsd-kind-icon">Function with type parameter</span></li>
+				<li class="tsd-kind-type-alias"><span class="tsd-kind-icon">Type alias</span></li>
+				<li class="tsd-kind-type-alias tsd-has-type-parameter"><span class="tsd-kind-icon">Type alias with type parameter</span></li>
+			</ul>
+			<ul class="tsd-legend">
+				<li class="tsd-kind-class"><span class="tsd-kind-icon">Class</span></li>
+				<li class="tsd-kind-class tsd-has-type-parameter"><span class="tsd-kind-icon">Class with type parameter</span></li>
+			</ul>
+			<ul class="tsd-legend">
+				<li class="tsd-kind-interface"><span class="tsd-kind-icon">Interface</span></li>
+			</ul>
+			<ul class="tsd-legend">
+				<li class="tsd-kind-property tsd-parent-kind-class tsd-is-static"><span class="tsd-kind-icon">Static property</span></li>
+			</ul>
+		</div>
+	</div>
+</footer>
+<div class="container tsd-generator">
+	<p>Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p>
+</div>
+<div class="overlay"></div>
+<script src="../assets/js/main.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/docs/classes/errors.ErrorDBNotRunning.html b/docs/classes/errors.ErrorDBNotRunning.html
index 4df30365..339398ad 100644
--- a/docs/classes/errors.ErrorDBNotRunning.html
+++ b/docs/classes/errors.ErrorDBNotRunning.html
@@ -423,6 +423,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
 					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 				</ul>
 				<ul class="current">
 					<li class="current tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
diff --git a/docs/classes/errors.ErrorDBParseKey.html b/docs/classes/errors.ErrorDBParseKey.html
index 26455ee1..d5d2663a 100644
--- a/docs/classes/errors.ErrorDBParseKey.html
+++ b/docs/classes/errors.ErrorDBParseKey.html
@@ -268,7 +268,7 @@ <h3><span class="tsd-flag ts-flagStatic">Static</span> description</h3>
 					<aside class="tsd-sources">
 						<p>Overrides <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#description">description</a></p>
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L32">src/errors.ts:32</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L36">src/errors.ts:36</a></li>
 						</ul>
 					</aside>
 				</section>
@@ -423,6 +423,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
 					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
 					</li>
diff --git a/docs/classes/errors.ErrorDBParseValue.html b/docs/classes/errors.ErrorDBParseValue.html
index df6b6a25..81fa1e2c 100644
--- a/docs/classes/errors.ErrorDBParseValue.html
+++ b/docs/classes/errors.ErrorDBParseValue.html
@@ -268,7 +268,7 @@ <h3><span class="tsd-flag ts-flagStatic">Static</span> description</h3>
 					<aside class="tsd-sources">
 						<p>Overrides <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#description">description</a></p>
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L36">src/errors.ts:36</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L40">src/errors.ts:40</a></li>
 						</ul>
 					</aside>
 				</section>
@@ -423,6 +423,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
 					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
 					</li>
diff --git a/docs/classes/errors.ErrorDBRunning.html b/docs/classes/errors.ErrorDBRunning.html
index 615b6177..56671d3f 100644
--- a/docs/classes/errors.ErrorDBRunning.html
+++ b/docs/classes/errors.ErrorDBRunning.html
@@ -434,6 +434,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
 					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
 					</li>
diff --git a/docs/classes/errors.ErrorDBTransactionCommitted.html b/docs/classes/errors.ErrorDBTransactionCommitted.html
index bcde40e9..a045c09b 100644
--- a/docs/classes/errors.ErrorDBTransactionCommitted.html
+++ b/docs/classes/errors.ErrorDBTransactionCommitted.html
@@ -268,7 +268,7 @@ <h3><span class="tsd-flag ts-flagStatic">Static</span> description</h3>
 					<aside class="tsd-sources">
 						<p>Overrides <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#description">description</a></p>
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L44">src/errors.ts:44</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L48">src/errors.ts:48</a></li>
 						</ul>
 					</aside>
 				</section>
@@ -423,6 +423,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
 					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
 					</li>
diff --git a/docs/classes/errors.ErrorDBTransactionDestroyed.html b/docs/classes/errors.ErrorDBTransactionDestroyed.html
index c271b451..ed0f05e3 100644
--- a/docs/classes/errors.ErrorDBTransactionDestroyed.html
+++ b/docs/classes/errors.ErrorDBTransactionDestroyed.html
@@ -268,7 +268,7 @@ <h3><span class="tsd-flag ts-flagStatic">Static</span> description</h3>
 					<aside class="tsd-sources">
 						<p>Overrides <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#description">description</a></p>
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L40">src/errors.ts:40</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L44">src/errors.ts:44</a></li>
 						</ul>
 					</aside>
 				</section>
@@ -423,6 +423,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
 					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
 					</li>
diff --git a/docs/classes/errors.ErrorDBTransactionNotCommited.html b/docs/classes/errors.ErrorDBTransactionNotCommited.html
index e6e619fc..75b970e7 100644
--- a/docs/classes/errors.ErrorDBTransactionNotCommited.html
+++ b/docs/classes/errors.ErrorDBTransactionNotCommited.html
@@ -268,7 +268,7 @@ <h3><span class="tsd-flag ts-flagStatic">Static</span> description</h3>
 					<aside class="tsd-sources">
 						<p>Overrides <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#description">description</a></p>
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L48">src/errors.ts:48</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L52">src/errors.ts:52</a></li>
 						</ul>
 					</aside>
 				</section>
@@ -423,6 +423,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
 					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
 					</li>
diff --git a/docs/classes/errors.ErrorDBTransactionRollbacked.html b/docs/classes/errors.ErrorDBTransactionRollbacked.html
index 47a97cad..423bfd29 100644
--- a/docs/classes/errors.ErrorDBTransactionRollbacked.html
+++ b/docs/classes/errors.ErrorDBTransactionRollbacked.html
@@ -268,7 +268,7 @@ <h3><span class="tsd-flag ts-flagStatic">Static</span> description</h3>
 					<aside class="tsd-sources">
 						<p>Overrides <a href="errors.ErrorDB.html">ErrorDB</a>.<a href="errors.ErrorDB.html#description">description</a></p>
 						<ul>
-							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L52">src/errors.ts:52</a></li>
+							<li>Defined in <a href="https://github.com/MatrixAI/js-db/blob/master/src/errors.ts#L56">src/errors.ts:56</a></li>
 						</ul>
 					</aside>
 				</section>
@@ -423,6 +423,9 @@ <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">void</spa
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
 					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
 					</li>
diff --git a/docs/modules/errors.html b/docs/modules/errors.html
index cd97a3c6..788fdff9 100644
--- a/docs/modules/errors.html
+++ b/docs/modules/errors.html
@@ -77,6 +77,7 @@ <h3>Classes</h3>
 								<li class="tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter"><a href="../classes/errors.ErrorDBDecrypt.html" class="tsd-kind-icon">ErrorDBDecrypt</a></li>
 								<li class="tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter"><a href="../classes/errors.ErrorDBDelete.html" class="tsd-kind-icon">ErrorDBDelete</a></li>
 								<li class="tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter"><a href="../classes/errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a></li>
+								<li class="tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter"><a href="../classes/errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a></li>
 								<li class="tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter"><a href="../classes/errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a></li>
 								<li class="tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter"><a href="../classes/errors.ErrorDBParseKey.html" class="tsd-kind-icon">ErrorDBParse<wbr>Key</a></li>
 								<li class="tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter"><a href="../classes/errors.ErrorDBParseValue.html" class="tsd-kind-icon">ErrorDBParse<wbr>Value</a></li>
@@ -134,6 +135,9 @@ <h3>Classes</h3>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="../classes/errors.ErrorDBDestroyed.html" class="tsd-kind-icon">ErrorDBDestroyed</a>
 					</li>
+					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
+						<a href="../classes/errors.ErrorDBKey.html" class="tsd-kind-icon">ErrorDBKey</a>
+					</li>
 					<li class=" tsd-kind-class tsd-parent-kind-module tsd-has-type-parameter">
 						<a href="../classes/errors.ErrorDBNotRunning.html" class="tsd-kind-icon">ErrorDBNot<wbr>Running</a>
 					</li>
diff --git a/src/DB.ts b/src/DB.ts
index 0bbe27dc..abf5dff6 100644
--- a/src/DB.ts
+++ b/src/DB.ts
@@ -41,6 +41,7 @@ class DB {
     crypto?: {
       key: Buffer;
       ops: Crypto;
+      canary?: Buffer;
     };
     fs?: FileSystem;
     logger?: Logger;
@@ -112,8 +113,18 @@ class DB {
       }
     }
     const db = await this.setupDb(this.dbPath);
-    await this.setupRootLevels(db);
     this._db = db;
+    try {
+      // Only run these after this._db is assigned
+      await this.setupRootLevels();
+      if (this.crypto != null) {
+        await this.canaryCheck();
+      }
+    } catch (e) {
+      // LevelDB must be closed otherwise its lock will persist
+      await this._db.close();
+      throw e;
+    }
     this.logger.info(`Started ${this.constructor.name}`);
   }
 
@@ -393,7 +404,7 @@ class DB {
     levelPath: LevelPath = [],
   ): DBIterator {
     levelPath = ['data', ...levelPath];
-    return this._iterator(this._db, options, levelPath);
+    return this._iterator(options, levelPath);
   }
 
   /**
@@ -401,7 +412,6 @@ class DB {
    * @internal
    */
   public _iterator(
-    db: LevelDB,
     options: AbstractIteratorOptions & { keys: false; values: false },
     levelPath?: LevelPath,
   ): DBIterator<undefined, undefined>;
@@ -409,7 +419,6 @@ class DB {
    * @internal
    */
   public _iterator(
-    db: LevelDB,
     options: AbstractIteratorOptions & { keys: false },
     levelPath?: LevelPath,
   ): DBIterator<undefined, Buffer>;
@@ -417,7 +426,6 @@ class DB {
    * @internal
    */
   public _iterator(
-    db: LevelDB,
     options: AbstractIteratorOptions & { values: false },
     levelPath?: LevelPath,
   ): DBIterator<Buffer, undefined>;
@@ -425,12 +433,10 @@ class DB {
    * @internal
    */
   public _iterator(
-    db: LevelDB,
     options?: AbstractIteratorOptions,
     levelPath?: LevelPath,
   ): DBIterator<Buffer, Buffer>;
   public _iterator(
-    db: LevelDB,
     options?: AbstractIteratorOptions,
     levelPath: LevelPath = [],
   ): DBIterator {
@@ -472,7 +478,7 @@ class DB {
       levelKeyEnd[levelKeyEnd.length - 1] += 1;
       options.lt = levelKeyEnd;
     }
-    const iterator = db.iterator(options);
+    const iterator = this._db.iterator(options);
     const seek = iterator.seek.bind(iterator);
     const next = iterator.next.bind(iterator);
     // @ts-ignore AbstractIterator type is outdated
@@ -507,16 +513,16 @@ class DB {
   @ready(new errors.ErrorDBNotRunning())
   public async clear(levelPath: LevelPath = []): Promise<void> {
     levelPath = ['data', ...levelPath];
-    await this._clear(this._db, levelPath);
+    await this._clear(levelPath);
   }
 
   /**
    * Clear from root level
    * @internal
    */
-  public async _clear(db: LevelDB, levelPath: LevelPath = []): Promise<void> {
-    for await (const [k] of this._iterator(db, { values: false }, levelPath)) {
-      await db.del(utils.keyPathToKey([...levelPath, k]));
+  public async _clear(levelPath: LevelPath = []): Promise<void> {
+    for await (const [k] of this._iterator({ values: false }, levelPath)) {
+      await this._del([...levelPath, k]);
     }
   }
 
@@ -547,7 +553,7 @@ class DB {
     raw: boolean = false,
   ): Promise<Array<[string | Buffer, any]>> {
     const records: Array<[string | Buffer, any]> = [];
-    for await (const [k, v] of this._iterator(this._db, undefined, levelPath)) {
+    for await (const [k, v] of this._iterator(undefined, levelPath)) {
       let key: string | Buffer, value: any;
       if (raw) {
         key = k;
@@ -672,9 +678,27 @@ class DB {
     return db;
   }
 
-  protected async setupRootLevels(db: LevelDB): Promise<void> {
+  protected async setupRootLevels(): Promise<void> {
     // Clear any dirty state in transactions
-    await this._clear(db, ['transactions']);
+    await this._clear(['transactions']);
+  }
+
+  protected async canaryCheck(): Promise<void> {
+    try {
+      const deadbeef = await this._get(['canary']);
+      if (deadbeef == null) {
+        // If the stored value didn't exist, its a new db and so store and proceed
+        await this._put(['canary'], 'deadbeef');
+      } else if (deadbeef !== 'deadbeef') {
+        throw new errors.ErrorDBKey('Incorrect key or DB is corrupted');
+      }
+    } catch (e) {
+      if (e instanceof errors.ErrorDBDecrypt) {
+        throw new errors.ErrorDBKey('Incorrect key supplied', { cause: e });
+      } else {
+        throw e;
+      }
+    }
   }
 }
 
diff --git a/src/DBTransaction.ts b/src/DBTransaction.ts
index e29954cc..308cde56 100644
--- a/src/DBTransaction.ts
+++ b/src/DBTransaction.ts
@@ -72,7 +72,7 @@ class DBTransaction {
   }
 
   public async destroy() {
-    await this.db._clear(this.db.db, this.transactionPath);
+    await this.db._clear(this.transactionPath);
   }
 
   get ops(): Readonly<DBOps> {
@@ -190,7 +190,6 @@ class DBTransaction {
     levelPath: LevelPath = [],
   ): DBIterator {
     const dataIterator = this.db._iterator(
-      this.db.db,
       {
         ...options,
         keys: true,
@@ -200,7 +199,6 @@ class DBTransaction {
       ['data', ...levelPath],
     );
     const tranIterator = this.db._iterator(
-      this.db.db,
       {
         ...options,
         keys: true,
diff --git a/src/errors.ts b/src/errors.ts
index d087c843..0106f561 100644
--- a/src/errors.ts
+++ b/src/errors.ts
@@ -24,6 +24,10 @@ class ErrorDBDelete<T> extends ErrorDB<T> {
   static description = 'DB cannot be deleted';
 }
 
+class ErrorDBKey<T> extends ErrorDB<T> {
+  static description = 'DB key is incorrect';
+}
+
 class ErrorDBDecrypt<T> extends ErrorDB<T> {
   static description = 'DB failed decryption';
 }
@@ -59,6 +63,7 @@ export {
   ErrorDBDestroyed,
   ErrorDBCreate,
   ErrorDBDelete,
+  ErrorDBKey,
   ErrorDBDecrypt,
   ErrorDBParseKey,
   ErrorDBParseValue,
diff --git a/tests/DB.test.ts b/tests/DB.test.ts
index 311d18f1..1a6bef78 100644
--- a/tests/DB.test.ts
+++ b/tests/DB.test.ts
@@ -9,6 +9,7 @@ import { WorkerManager } from '@matrixai/workers';
 import { withF } from '@matrixai/resources';
 import { spawn, Worker } from 'threads';
 import DB from '@/DB';
+import * as errors from '@/errors';
 import * as utils from '@/utils';
 import * as testUtils from './utils';
 
@@ -94,6 +95,32 @@ describe(DB.name, () => {
     await db.dump();
     await db.stop();
   });
+  test('start performs canary check to validate key', async () => {
+    const dbPath = `${dataDir}/db`;
+    let db = await DB.createDB({ dbPath, crypto, logger });
+    await db.stop();
+    const crypto_ = {
+      ...crypto,
+      key: testUtils.generateKeySync(256),
+    };
+    await expect(
+      DB.createDB({ dbPath, crypto: crypto_, logger }),
+    ).rejects.toThrow(errors.ErrorDBKey);
+    // Succeeds with the proper key
+    db = await DB.createDB({ dbPath, crypto, logger });
+    // Deliberately corrupt the canary
+    await db._put(['canary'], 'bad ju ju');
+    await db.stop();
+    // Start will fail, the DB will still be stopped
+    await expect(db.start()).rejects.toThrow(errors.ErrorDBKey);
+    // DB is still corrupted at this point
+    await expect(DB.createDB({ dbPath, crypto, logger })).rejects.toThrow(
+      errors.ErrorDBKey,
+    );
+    // Must create fresh database
+    db = await DB.createDB({ dbPath, crypto, logger, fresh: true });
+    await db.stop();
+  });
   test('get and put and del', async () => {
     const dbPath = `${dataDir}/db`;
     const db = await DB.createDB({ dbPath, crypto, logger });