Gruppo Folk Italiano - Coro A. Toscanini di Torino
{"copyright_id":"0xf4e7e517e76679de72a8c5d08dcec6384057a200ba33cdedbbd0fd2f481137b6","name":"Gruppo Folk Italiano - Coro A. Toscanini di Torino","registered_at":"2026-06-20T21:55:57Z","symbol":"NIM1725019","token_address":"0xb085f398a37158d56fd8e19c954148ab5d49cfad","type":"artist","uuid":"c7f3bb2d-6bfb-441d-aa65-39ade05ad0ee"}
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 0xf4e7e517e76679de72a8c5d08dcec6384057a200ba33cdedbbd0fd2f481137b6. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7f3bb2d-6bfb-441d-aa65-39ade05ad0ee.json and https://artists.proofprofile.net/proofs/artist/c7f3bb2d-6bfb-441d-aa65-39ade05ad0ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).