Multisig overlap research

391
protocol entries checked directly on-chain across three research passes (Ethereum mainnet, the Optimism Superchain, Arbitrum and 10 more L2s). On mainnet alone, 8 signers hold multisig keys on 2 or more independent protocols at once.

Check your Safe

A small public utility from the multisig-overlap-showcase research project. It reads a Safe's owner list directly from chain, in your browser, and checks each owner against the signers already documented in that project's public README.

Reads Ethereum mainnet only. A Safe deployed only on Base, Optimism, Arbitrum or another chain cannot be read here, and a Safe at the same address on another chain may have different owners. Any other contract, or a plain wallet address, will just fail the check below.

This free check only looks at three signer addresses documented in this research. The full check behind this project cross-references 411 protocol entries and 749 multisig addresses. If that fuller check is relevant to your organization, ask about it at x.com/RealSpap.