Tara may refer to: Arts and entertainment Film and television Tara (1992 film), an Indian film directed by Bijaya Jena Tara (2001 film), an American film, also known as Hood Rat, directed by Leslie S
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 0x02d271da62901e018366761d51d1bb980e95a04471665f0e2a2c02c5cb34b73f. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1d77e8c-07f2-43c3-acb0-cf0cf4544abb.json and https://artists.proofprofile.net/proofs/artist/c1d77e8c-07f2-43c3-acb0-cf0cf4544abb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).