{"copyright_id":"0xcedfabb162ab93abc91bd1cfa7baff0b281e41d3f614d36ac9f6d47ba9203379","name":"The Buena High School Choir","registered_at":"2026-06-20T14:59:54Z","symbol":"NIM1636581","token_address":"0x57ad5dae5d65a501658638c03df4c1b32f04eae7","type":"artist","uuid":"b61c7821-dd65-45e1-b5ef-88dfbafec915"}
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedfabb162ab93abc91bd1cfa7baff0b281e41d3f614d36ac9f6d47ba9203379. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b61c7821-dd65-45e1-b5ef-88dfbafec915.json and https://artists.proofprofile.net/proofs/artist/b61c7821-dd65-45e1-b5ef-88dfbafec915.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).