{"copyright_id":"0xb9d82d2620ec8e612fe6712a7d2e6d14013a1fa40bd0eb2e877ce9beee1cad4e","name":"Tom Øyvind Heitmann","registered_at":"2026-06-17T17:13:26Z","symbol":"NIM1463516","token_address":"0xa725edf1a1edde31ed37508b348469b5d29ff4d8","type":"artist","uuid":"93db8efb-1ca4-42d8-bdfd-e1cea746a46f"}
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 0xb9d82d2620ec8e612fe6712a7d2e6d14013a1fa40bd0eb2e877ce9beee1cad4e. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93db8efb-1ca4-42d8-bdfd-e1cea746a46f.json and https://artists.proofprofile.net/proofs/artist/93db8efb-1ca4-42d8-bdfd-e1cea746a46f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).