{"copyright_id":"0x2c3a05adbceabdf761c49aada76f0f938cf38d61ec0d0ceb4b26add1575fd00d","name":"Orchestra Matteo Tassi","registered_at":"2026-06-15T02:49:03Z","symbol":"NIM0658377","token_address":"0x4bcf9e758f859b84ac9ae898bf06fce85254e332","type":"artist","uuid":"d4e2cb1d-1b5a-4ea3-a755-6d507cb8c3e8"}
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 0x2c3a05adbceabdf761c49aada76f0f938cf38d61ec0d0ceb4b26add1575fd00d. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4e2cb1d-1b5a-4ea3-a755-6d507cb8c3e8.json and https://artists.proofprofile.net/proofs/artist/d4e2cb1d-1b5a-4ea3-a755-6d507cb8c3e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d824fa2dc436495f8bab9879e151bb875b8b7e63434032a8d33d60bc3f4a66. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP981300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae5067043bb3b0b4d7b0ebfe4ef6650148ed3da834eeb76a05aeccde0bf1730. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP981600124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f9b8cebaeba3dcc749835af80527a253eef2bf6e62b7d722732deda0454e9a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:45:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP982200021.