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Thank you for the great write-up capturing everything we discussed!
bridges/snowbridge/docs/v2.md
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| 2. Dry-run $x_1$ on AH to receive xcm $x_2$ and cost $b$ in DOT | ||
| 3. Dry-run $x_2$ on BH to receive command $m$ and cost $c$ in DOT | ||
| 4. Dry-run $m$ on Ethereum to receive cost $d$ in ETH |
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Given that you previously stated $P^{'}$ and $E^{'}$ were the native currency of Polkadot and Ethereum respectively, should those be used here? Or should we just use DOT and ETH throughout?
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The mathematical notation was useful for distilling the essence of the algorithm. However I've made it more clear in 495ab69 that DOT and ETH are alternative names.
bridges/snowbridge/docs/v2.md
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| - Given source parachain $S$, with native token $S^{'}$ and the initial xcm $x_0$ to be executed on $S$. | ||
| - The native currency $P^{'}$ of the Polkadot relay chain, and $E^{'}$ of Ethereum. | ||
| - Suppose that the user agent chooses relayer reward $r$ in $E^{'}$. | ||
| - Suppose that the exchange rates $K_{P^{'}/S^{'}}$ and $K_{E^{'}/S^{'}}$. The user agent chooses a multiplier to $\beta$ to cover volatility in these rates. |
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These rates are obtained off-chain and the total fee might be too low if the rates were wrong and beta not enough to cover the difference, right?
I might add a little note here to highlight the importance of getting the correct exchange rates and the consequence of not having them.
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Great writeup 😄
Co-authored-by: Francisco Aguirre <[email protected]> Co-authored-by: Adrian Catangiu <[email protected]> Co-authored-by: Alistair Singh <[email protected]>
Co-authored-by: Francisco Aguirre <[email protected]>
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This pull request has been mentioned on Polkadot Forum. There might be relevant details there: https://forum.polkadot.network/t/snowbridge-september-update/10389/1 |
* master: (28 commits) `substrate-node`: removed excessive polkadot-sdk features (#5925) Rename QueueEvent::StartWork (#6015) [ci] Remove quick-benchmarks-omni from GitLab (#6014) Set larger timeout for cmd.yml (#6006) Fix `0003-beefy-and-mmr` test (#6003) Remove redundant XCMs from dry run's forwarded xcms (#5913) Add RadiumBlock bootnodes to Coretime Polkadot Chain spec (#5967) Bump strum from 0.26.2 to 0.26.3 (#5943) Add PVF execution priority (#4837) Snowbridge V2 docs (#5902) Fix u256 conversion in BABE (#5994) [ci] Move test-linux-stable-no-try-runtime to GHA (#5979) Bump PoV request timeout (#5924) [Release/CI] Github flow to build `polkadot`/`polkadot-parachain` rc binaries and deb package (#5963) [ci] Remove short-benchmarks from Gitlab (#5988) Disable flaky tests reported in 5972/5973/5974 (#5976) Bump some dependencies (#5886) bump zombienet version and set request for k8s (#5968) [omni-bencher] Make all runtimes work (#5872) Omni-Node renamings (#5915) ...
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Here are MD docs for V2 @acatangiu @franciscoaguirre . Let me know what you think.