ECIP-1027/28: Scaling ETC with Sidechains [WIP] #69
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splix
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splix
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| features are already implemented in Parity. | ||
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| It will also require improvements in user interface, new commands, configuration options and documentation. None of | ||
| this is a breaking change |
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It sounds like C1 and C2 are done as federated sidechains (like RSK on bitcoin - is that correct) but I'm not sure I understand C3. Does something comparable exist already?
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RSK is more C2 imho. Lighting/Raiden could be an example of C3
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| Public Chain is a general use blockchain, operated by multiple parties and in an untrusted environment. It can use a | ||
| fast PoS consensus algorithm for fast and cheap transactions, or individual configuration of EVM. | ||
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Is C1/C2/C3 some common sidechain classification or was invented by you @splix?
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"invented here". just need something as a reference cross document
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| For more sophisticated chains (C2/C3 types) verification a Sidechain can use methods similar to Proof Of Stake, or | ||
| even implement full verification in a smart contract. Later is possible if a checkpoint can provide security by | ||
| validating only a chain headers and part of shared state. |
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I find that section most interesting - really how to connect two blockchain together and to reach consensus, but you left technical details beyond the scope of the document. What about the next steps to work out some solution for this?
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There're few possible ways, so it's better to introduce them as separate ECIPs
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| Cross-transactions for public Sidechain (C3) is most complicated part. In additional to untrusted environment it | ||
| can have multiple shared states managed by different types of services. It seems to be infeasible to implement a | ||
| general algorithm which will work for all cases. |
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Can you please add a definition for cross-transaction, what did you mean exactly? Multiple shared states are states from separated blockchains between which running cross-transactions?
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A state change on one chain resulting in a state change on another chain. This state modification can be different, but inseparable linked
splix
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Can we further leverage side chains to be an effective cross-chain technique? For example, a sidechain of BTC to ETC transactions with validation. Same for Zcash and Monero? (Where the privacy techniques make verification expensive in gas.) I think that would be considered a C3 with externalities? |
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Just leave a note here that I will work with ETCDEV team on implement a trial sidechain for OpenStack Public Cloud Passport Program :) Slides could be found: https://docs.google.com/presentation/d/1RYRq1YdYEoZ5KNKwlDDtnunMdoYRAHPjPslnng3VqcI/edit?usp=sharing
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Are there any repos with sidechain code/examples besides the ECIPs? Does Geth have anything? I see the ECIP says there is some capability since geth 3.4.0. |
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Are there any updates to the proposal? if yes please update it when you find the time, thanks! 👍 |
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@splix, ECIP-1028 contains wrong ref to parity wiki, could you update it to https://wiki.parity.io/Proof-of-Authority-Chains, please |
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