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 0x4505595c1382881025d1224c182279e4f8d1a671fa00736c48a7d70c84489dc8. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2fa0371d-17e7-402c-934c-ae1ed3d07213.json and https://artists.proofprofile.net/proofs/artist/2fa0371d-17e7-402c-934c-ae1ed3d07213.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 0x6d29779976f68c9bbb575d62c018a48a1372f7f574439458fc4b19c976abe7f8. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/PEIF21616194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088bd47aea0e10d4a55b53cdbd7b7a2c2d5433db82b64ff5d382cb2c022342dd. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:49:08Z), 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/PEIF21616173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301a4a944be8b2754c0d72c2f1075e80317f7b705943332937abd4484ece2410. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PEIF21616187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfc0cbeda4f19a2659828c7a386e50de96cc6c609bb5db898ffe0857c3d9ab8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:55:56Z), 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/PEIF21616178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bcc973193cf9295461937d5e031a49d6f3e8a27815bd02434b2c4da681b38d. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/PEIF21616179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ae754e66110f93977efa4dc33eb760a1bd1f1848cb052d96d4db33a681dd1f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/PEIF21616192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4687ce94bb2ab6070eaf92a86af1bc28440a6056cb9c4898464c61f6079c82. 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/PEIF21616204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf007773b7984ea07782ce0184dcd46b0a20d3b9e42a9d1c9d076776708ffcda. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/PEIF21616193.
Corazón Corazón (Éxitos y Más) [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b51f5a6884be2c33e03486e53f008265995205fa9645e1d72160aafabae30b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PYC842505847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0147dc22c44fef0fea18a2996c7914ad04f2f8ee9745816b27ae036e391b2864. 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/PYC842505848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f81be5634ba6923c5eccb9ec9f7ded25a899477db2ad432fa4b74195d5531dd. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PYC842505850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10681b40f8084fa55a003d1b80e4554e22e67e386febfe1a5c2a99e99c2f796. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:52:53Z), 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/PYC842505851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60487a87ff7bbbdf4d23385139da64bbac282dc5fc26fdf366829fb2d9cb74f. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/PYC842505852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4752da7a08949dba1f59e8315dfcc13505759c95e7844bcd054802e081febbf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PYC842505853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aec382abd093f72634696113646b970beb644f4b0b171e883b24c9757209e20. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/PYC842505856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7873554310ba4f4618f6f54ab935480db710f8e4f4febd9c7a6d608f8edef9dc. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:07:09Z), 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/PYC842505858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3112b420fed7eca9c4351293bd5b48857cecc42d0a6ab53581aef4eccb3c21. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:53:38Z), 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/PYC842505859.