{"copyright_id":"0x13f0b1d97b8a5eb47a74d102dfbf894dc74edbca0db9637b1f4274c420f29e44","name":"Kat DeLuna feat. Elephant Man","registered_at":"2026-06-20T12:14:49Z","symbol":"NIM1609674","token_address":"0x8b6baa8993e5ac0e4c20e7af2bb8efaaace3f4fd","type":"artist","uuid":"b0d936c7-12d0-4f24-aee4-c4bb23ea9392"}
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 0x13f0b1d97b8a5eb47a74d102dfbf894dc74edbca0db9637b1f4274c420f29e44. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0d936c7-12d0-4f24-aee4-c4bb23ea9392.json and https://artists.proofprofile.net/proofs/artist/b0d936c7-12d0-4f24-aee4-c4bb23ea9392.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).