1ownership-basic, ownership-social, ownership-pseudonym, ownership-dns-txt, ownership-org-oauth, contract-ownership, proof-of-human, nft-ownership, token-holding, wallet-risk, wallet-link, ai-content-moderation, agent-identity, agent-delegation Optional. For EVM (0x address), verification requests are normalized to the protocol hub chain. For non-EVM, include chain (CAIP-2) instead.
Optional. For EVM (0x address), verification requests are normalized to protocol hub chain context. For non-EVM, include chain (e.g. solana:mainnet).