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 0x57488a18cf43f235cbcebc13c2aac1cb892ebbc361543bbece57aa8f277d8d18. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91bfd5df-8f98-4e73-94f5-6c28d3fd9ed2.json and https://artists.proofprofile.net/proofs/artist/91bfd5df-8f98-4e73-94f5-6c28d3fd9ed2.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 0x21c521234280cc79fd406602a65f8c107af92cf2a9e6a782095046a00228fb11. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRU702200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc451182fe109f2d45d77e8b7d70c7b43fd29fc4d5c84f20f25af3a0845bcdbb. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:02:26Z), 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/FRX282205857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7706fe082e54dad60289d7aa2b880dcc1a1b3912f4146760a75f02426ec22e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FRX202278211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b99dc58ec97e3ee8641fdd5f59769c3ac58e399df133fb971f38ab81527f01. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FR59R2342484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97400f731dd0283ca890001f8fe1d715be75e6fafae928627f53e8769c706e5a. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/DGA0P2407949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198b67286801d1782d0eb0d1234bee6a8f295aa571eace45acece4a403a63bd6. 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/DGA0P2447772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafebeb914710ba5a70a046c3ba79e78508c0888d905e6321890736bd384b881f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZAKB2367296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d4e8a80b1d556109a899c7123e2f30d7cc1255a0b3d84d7785bbb60c400197. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/FRX202482667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97400f731dd0283ca890001f8fe1d715be75e6fafae928627f53e8769c706e5a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DGA0P2407949.
Labios de Mora / ChismotecA (blue ringed baby remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353ae79590cb8b1c15254b1c009b87dd772feede1ccd9f0294e1c8e40e5c1cf0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GXD7V2561100.