{"copyright_id":"0x4fb2fcd43addd9cc00df7f54a9cc59717e6bd0a0697ef39b7afac4dd0acdcc77","name":"Prince Marius","registered_at":"2026-06-17T15:21:21Z","symbol":"NIM1436759","token_address":"0x8d7f14fe84aebb7edf51e35f86fc792bf35685bc","type":"artist","uuid":"8e577975-e5ec-4edb-adb8-d0cb136273f7"}
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 0x4fb2fcd43addd9cc00df7f54a9cc59717e6bd0a0697ef39b7afac4dd0acdcc77. 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/8e577975-e5ec-4edb-adb8-d0cb136273f7.json and https://artists.proofprofile.net/proofs/artist/8e577975-e5ec-4edb-adb8-d0cb136273f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).