Sign Protocol is a full-chain authentication protocol that enables users to freely authenticate and verify any information on the chain. Sign Protocol provides a set of tools, infrastructure, and standards to create a future where all statements and assertions about the network and the world around are driven by verifiable authentication. It does this by leveraging modern technologies such as decentralized blockchains and data storage solutions, as well as new technologies such as the use of zero-knowledge cryptography and digital signatures. . Sign's first product, Signatures, allows users to sign legally binding agreements using their public keys, creating an on-chain record of agreed contract terms. Sign's second product is TokenTable, which helps Web3 projects execute, track, and enforce the tokens used by projects to distribute their tokens.