{"copyright_id":"0xee401f4fbcaea5591f478e617215eff02926495bed1c5fd7d1fa70dd8dd2d5b3","name":"Enrique el Piculabe","registered_at":"2026-06-16T05:42:57Z","symbol":"NIM0955289","token_address":"0x2fdd922cb69f83f02c7d9ecd5b22f9cbbfbf1f9d","type":"artist","uuid":"2e5eeb84-e824-4fe5-9eae-a49e79670b7b"}
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 0xee401f4fbcaea5591f478e617215eff02926495bed1c5fd7d1fa70dd8dd2d5b3. Chain 2 (Bitcoin): anchored in block 953988 (2026-06-16T18:23:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e5eeb84-e824-4fe5-9eae-a49e79670b7b.json and https://artists.proofprofile.net/proofs/artist/2e5eeb84-e824-4fe5-9eae-a49e79670b7b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.