0x2D943E25e1859ED786AFe4AFB2B42e14EFAC691e

on Base Mainnet (8453)

Exact Match

Runtime Bytecode

Creation Bytecode

Contract Name: SignatureChecker
Compilation Target: /Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-usdc-mainnet-base/contracts/util/SignatureChecker.sol:SignatureChecker
Language: Solidity
Compiler: solc 0.6.12+commit.27d51765
EVM Version: istanbul
Verified At: 2026-07-07 13:49:57 UTC
Deployer: 0x580d2c2Da4f58D9EFc2fDb5982Ea67Edc9620258
Deployment Transaction: 0xbf84953708d71f266ffb933f32a8e4bc299bd503682bd01e2837231e54cfe38e
Block Number: 7631545
Transaction Index: 6

Read/Write Contract on:

ABI

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Source Code

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EXPLORER

SignatureChecker.sol

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Compiler Settings

Contract Metadata

Creation Bytecode

Annotated On-chain Bytecode

On-chain & Recompiled Bytecode

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CBOR Auxdata

These values are what Sourcify extracted from the recompiled bytecode. If these values are different in the on-chain bytecode, they will show up in Transformations section.

CBOR Auxdata id: 1

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Solidity metadata.json IPFS hash: QmbRJZocWkJRFNc4ireEAze8cEYKovNBWaZw5SyFAhLyTF

Raw

Decoded

Length: 53 bytes

0xa2646970667358221220c2590ee3f923f1dfd854d10faf866a41e28a7e561a876964586308dae918306a64736f6c634300060c0033

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Runtime Bytecode

Annotated On-chain Bytecode

On-chain Bytecode

Recompiled Bytecode

0x73callProtection2d943e25e1859ed786afe4afb2b42e14efac691e30146080604052600436106100355760003560e01c8063functionSignature6ccea6521461003a575b600080fd5b6101026004803603606081101561005057600080fd5b73ffffffffffffffffffffffffffffffffffffffff8235169160208101359181019060608101604082013564010000000081111561008d57600080fd5b82018360208201111561009f57600080fd5b803590602001918460018302840111640100000000831117156100c157600080fd5b91908080601f016020809104026020016040519081016040528093929190818152602001838380828437600092019190915250929550610116945050505050565b604080519115158252519081900360200190f35b600061012184610179565b610164578373ffffffffffffffffffffffffffffffffffffffff16610146848461017f565b73ffffffffffffffffffffffffffffffffffffffff16149050610172565b61016f848484610203565b90505b9392505050565b3b151590565b600081516041146101db576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260238152602001806106296023913960400191505060405180910390fd5b60208201516040830151606084015160001a6101f98682858561042d565b9695505050505050565b60008060608573ffffffffffffffffffffffffffffffffffffffff16631626ba7e60e01b86866040516024018083815260200180602001828103825283818151815260200191508051906020019080838360005b8381101561026f578181015183820152602001610257565b50505050905090810190601f16801561029c5780820380516001836020036101000a031916815260200191505b50604080517fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe08184030181529181526020820180517bffffffffffffffffffffffffffffffffffffffffffffffffffffffff167fffffffff000000000000000000000000000000000000000000000000000000009098169790971787525181519196909550859450925090508083835b6020831061036957805182527fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe0909201916020918201910161032c565b6001836020036101000a038019825116818451168082178552505050505050905001915050600060405180830381855afa9150503d80600081146103c9576040519150601f19603f3d011682016040523d82523d6000602084013e6103ce565b606091505b50915091508180156103e257506020815110155b80156101f9575080517f1626ba7e00000000000000000000000000000000000000000000000000000000906020808401919081101561042057600080fd5b5051149695505050505050565b60007f7fffffffffffffffffffffffffffffff5d576e7357a4501ddfe92f46681b20a08211156104a8576040517f08c379a00000000000000000000000000000000000000000000000000000000081526004018080602001828103825260268152602001806106726026913960400191505060405180910390fd5b8360ff16601b141580156104c057508360ff16601c14155b15610516576040517f08c379a000000000000000000000000000000000000000000000000000000000815260040180806020018281038252602681526020018061064c6026913960400191505060405180910390fd5b600060018686868660405160008152602001604052604051808581526020018460ff1681526020018381526020018281526020019450505050506020604051602081039080840390855afa158015610572573d6000803e3d6000fd5b50506040517fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe0015191505073ffffffffffffffffffffffffffffffffffffffff811661061f57604080517f08c379a000000000000000000000000000000000000000000000000000000000815260206004820152601c60248201527f45435265636f7665723a20696e76616c6964207369676e617475726500000000604482015290519081900360640190fd5b9594505050505056fe45435265636f7665723a20696e76616c6964207369676e6174757265206c656e67746845435265636f7665723a20696e76616c6964207369676e6174757265202776272076616c756545435265636f7665723a20696e76616c6964207369676e6174757265202773272076616c7565a2646970667358221220c2590ee3f923f1dfd854d10faf866a41e28a7e561a876964586308dae918306a64736f6c634300060c0033

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CBOR Auxdata

These values are what Sourcify extracted from the recompiled bytecode. If these values are different in the on-chain bytecode, they will show up in Transformations section.

CBOR Auxdata id: 1

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Solidity metadata.json IPFS hash: QmbRJZocWkJRFNc4ireEAze8cEYKovNBWaZw5SyFAhLyTF

Raw

Decoded

Length: 53 bytes

0xa2646970667358221220c2590ee3f923f1dfd854d10faf866a41e28a7e561a876964586308dae918306a64736f6c634300060c0033

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Transformations

Call Protection

Byte Offset	Address
1	0x2d943e25e1859ed786afe4afb2b42e14efac691e

Storage Layout

For non-default storage allocations (e.g. EIP-7201) check out

Transient Storage Layout

Transient storage layout is only available for Solidity contracts compiled with version ≥ 0.8.27.

Standard JSON Input

This isn't the original compiler JSON data. Generated for compatibility.

Standard JSON Output

This isn't the original compiler JSON data. Generated for compatibility.