Havi may refer to: Hávi, a variant form of Hár, one of the names of Odin, the chief god in Norse mythology HAVi, the Home Audio Video Interoperability standard
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093ffbb96c13ddb6eb1bd689c46fe9b7f0a5d52c083b94cf92a211b3579869f7. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eabd558e-36f5-4366-86ca-4d835cd1a713.json and https://artists.proofprofile.net/proofs/artist/eabd558e-36f5-4366-86ca-4d835cd1a713.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).