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 0x44bea5358e1aa2fd5f76471d057ba1d5755be0038793ae08ed5b11eb16444d39. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d14072a-746f-44e6-ae95-f582ec6ea0bd.json and https://artists.proofprofile.net/proofs/artist/9d14072a-746f-44e6-ae95-f582ec6ea0bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
LOS AMO (RIP LA X27, 26is) HADES x ANUBIS)
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 0x851039532dfacd1a072a26aeb71db184c985f1307ff4ac700e701d48a8c6eda1. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZTB92529407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b260a764d6e15783295789b5f9688bcbf9ab6f26fac5b915e2d4a726689ef1e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:53:58Z), 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/QZTBD2597713.
Feka Cos (Kendo Kaponi) [Tiraera para Cosculluela]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a493e58bae73dc9baeef05d2daf16c0ccc60f2d8e192cb0c899af43c0e81aad. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZWFF2504116.
No Te Impresiones (Benji La Maldita Escritura De Oro & TobalMJ)
Tranquilo Que Yo No Fallo 2Remix (Shelo)