{"copyright_id":"0x7da36afdc7d6c13ba40d388d6bc09fb6badcaf23fafa8255ac1fd1c5ac88c5b4","name":"Thomas Schindowski","registered_at":"2026-06-20T09:02:28Z","symbol":"NIM1573001","token_address":"0x4dd2b96602a0ca17c1c2a2d6faaeccbb8ac8f7da","type":"artist","uuid":"a92113b9-cd4f-498a-b4ed-efa2c2d3964c"}
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 0x7da36afdc7d6c13ba40d388d6bc09fb6badcaf23fafa8255ac1fd1c5ac88c5b4. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a92113b9-cd4f-498a-b4ed-efa2c2d3964c.json and https://artists.proofprofile.net/proofs/artist/a92113b9-cd4f-498a-b4ed-efa2c2d3964c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).