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 0x8be2f88fbec4fc126ba7c31a13d14daea564225344879110c2f906cb03c06f73. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7100abbf-3545-4f11-8576-39381b7ff750.json and https://artists.proofprofile.net/proofs/artist/7100abbf-3545-4f11-8576-39381b7ff750.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 0xedbcdc9853617d904353848c0d8d35b32fe65c09b363e1fa4b81cb9383925552. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZHN32408061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb568486bc80885042599ca9871aa3a856bd80b0e7aca33ff9d75153c7a58d094. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHN82470533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1e1b221700dfd32096a6a377dfc95c10500db9c198aa8bb9f316714dab4e24. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:16:14Z), 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/QZNWZ2415700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8e7908289d076fb32889e2444214776928272cc786422b39d84c76f5011266. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFF2494877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b580c5cae6797e78463f160d20bcd945e8f8e8f6ccafe3f40a70bad2aa5151. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZMEN2562982.
Plataneras x Malaje (Soma Live en Bajamar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8328989a2492ac67bd7c930de929fde59f1c05d1fe31bbc61ba2c4727791ae. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:30:02Z), 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/QT3F42509362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc5468c4bf490d8d5b5d6355d057b4642a827a6ae6bcad9bcab9a5765d65ee2. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:54:26Z), 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/QT3F42509363.