{"copyright_id":"0xd77b1f30baedfd446f7ac2fd42b8ba5abca18b6aabea8253039919b934ba9be8","name":"Deseret String Band","registered_at":"2026-06-17T05:08:09Z","symbol":"NIM1290614","token_address":"0x670bf662df116f8ce50baef7addb363dedd80d4b","type":"artist","uuid":"71909fee-7779-41a9-ae07-409bcfeeb4b5"}
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 0xd77b1f30baedfd446f7ac2fd42b8ba5abca18b6aabea8253039919b934ba9be8. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71909fee-7779-41a9-ae07-409bcfeeb4b5.json and https://artists.proofprofile.net/proofs/artist/71909fee-7779-41a9-ae07-409bcfeeb4b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).