Mutual Sign
Mutual Sign is a two-way vouch where both wallets sign each other’s identity in the same session — the strongest form of peer verification on TrustLayer.
Mutual Sign requires both parties to be online, verify each other’s handle, and sign matching EIP-191 payloads. Because both proofs are anchored in the same block, it is impossible to fake asymmetric trust — making Mutual Sign the highest-weight vouch class.
Related terms
Vouching
Vouching is a cryptographic peer signature that says "this wallet belongs to a real human I know." Each mutual vouch strengthens both parties’ Trust Scores.
Trust Score
Trust Score is a 0–1000 number computed from peer vouches, streaks, and on-chain activity — a portable reputation metric anchored to your wallet on Base.