github.com/ethereum-optimism/optimism@v1.7.2/packages/contracts-bedrock/snapshots/storageLayout/AttestationStation.json (about)

     1  [
     2    {
     3      "bytes": "32",
     4      "label": "attestations",
     5      "offset": 0,
     6      "slot": "0",
     7      "type": "mapping(address => mapping(address => mapping(bytes32 => bytes)))"
     8    }
     9  ]