{"copyright_id":"0x5e20824d8b56aae6982ab3ea1c33efccede83880df9a78cd6ce0bc18eb51b8ba","name":"Lonesome Dan & The Curmudgeons","registered_at":"2026-06-20T06:44:09Z","symbol":"NIM1544451","token_address":"0xe79ec71be2393ab7666abb3a3caf0fcf593a4f3c","type":"artist","uuid":"a39e0214-3783-424c-ab7c-be1ff11bd7a0"}
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 0x5e20824d8b56aae6982ab3ea1c33efccede83880df9a78cd6ce0bc18eb51b8ba. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a39e0214-3783-424c-ab7c-be1ff11bd7a0.json and https://artists.proofprofile.net/proofs/artist/a39e0214-3783-424c-ab7c-be1ff11bd7a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).