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.
A vouch is an EIP-191 signature produced by one wallet about another. TrustLayer supports in-person QR vouches and remote chat-based vouches. Vouches are weighted by the voucher’s own Trust Score, so vouches from high-reputation accounts count more — making sybil attacks economically irrational.
Related terms
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.
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.
Sybil Resistance
Sybil resistance is the ability of a network to reject fake or duplicate identities. TrustLayer achieves this via weighted peer vouches, streak decay, and on-chain proofs.