California Baptist University Choir and Orchestra
{"copyright_id":"0x6bf41be345d6bf289ce279dc22288b8870342278666db623127fd2a1be3fed71","name":"California Baptist University Choir and Orchestra","registered_at":"2026-06-17T13:59:55Z","symbol":"NIM1417321","token_address":"0x5a03bd0d20eb879f52206d38a753e3ee1f904a4e","type":"artist","uuid":"8a590ae5-d0ff-42f8-8efa-b517257aaa3f"}
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 0x6bf41be345d6bf289ce279dc22288b8870342278666db623127fd2a1be3fed71. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a590ae5-d0ff-42f8-8efa-b517257aaa3f.json and https://artists.proofprofile.net/proofs/artist/8a590ae5-d0ff-42f8-8efa-b517257aaa3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).