{"copyright_id":"0xcb8370f0531cc86ae8efce7d0adbde3bcd241ac231ec376f4182a7c0f7efb33b","name":"Figueiredo Seresteiro","registered_at":"2026-06-15T18:22:48Z","symbol":"NIM0792927","token_address":"0x0a9ce530607180d574ecb533a65fed20d9fc7fe6","type":"artist","uuid":"0d4ded5a-cbd0-4dff-b3bd-7583e8612e57"}
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 0xcb8370f0531cc86ae8efce7d0adbde3bcd241ac231ec376f4182a7c0f7efb33b. Chain 2 (Bitcoin): anchored in block 953889 (2026-06-16T04:57:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d4ded5a-cbd0-4dff-b3bd-7583e8612e57.json and https://artists.proofprofile.net/proofs/artist/0d4ded5a-cbd0-4dff-b3bd-7583e8612e57.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).