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chore(docs): Link to evmdiff for supported EVM chains #5107

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May 24, 2024
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chore(docs): Link to evmdiff for supported EVM chains #5107

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2 changes: 1 addition & 1 deletion docs/docs/how_to/how-to-solidity-verifier.md
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Expand Up @@ -230,7 +230,7 @@ It would be incorrect to say that a Noir proof verification costs any gas at all

## A Note on EVM chains

ZK-SNARK verification depends on some precompiled cryptographic primitives such as Elliptic Curve Pairings (if you like complex math, you can read about EC Pairings [here](https://medium.com/@VitalikButerin/exploring-elliptic-curve-pairings-c73c1864e627)). Not all EVM chains support EC Pairings, notably some of the ZK-EVMs. This means that you won't be able to use the verifier contract in all of them.
Noir proof verification requires the ecMul, ecAdd and ecPairing precompiles. Not all EVM chains support EC Pairings, notably some of the ZK-EVMs. This means that you won't be able to use the verifier contract in all of them. You can find an incomplete list of which EVM chains support these precompiles [here](https://www.evmdiff.com/features?feature=precompiles).

For example, chains like `zkSync ERA` and `Polygon zkEVM` do not currently support these precompiles, so proof verification via Solidity verifier contracts won't work. Here's a quick list of EVM chains that have been tested and are known to work:

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