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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee09df51734448305f2ca8e004699bd3bdcb2d4fb1533de0493dfc7996fe567. 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/baa7bda3-c64f-4627-a89d-0acf21d0a059.json and https://artists.proofprofile.net/proofs/artist/baa7bda3-c64f-4627-a89d-0acf21d0a059.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ff96a383323c5ad46ede3df035ae648f08e2f30ae7eb13987758170ee4fcdd. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBLFP2169302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75df6cb9814ede67d46a1b80de227cdb3db990f12abedaa2b277dbc6cc8293b. 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/GBLFP2169303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4d1acc2ad9f054d6264dda8b42373711614ab154f5f9d59f2d5e44efbfbdbe. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:20:48Z), 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/GBLFP2169305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc7df1a87a93d8aace4e9ab9e831c1f77599014db88e4937d4fd85d6e91675d. 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/GBLFP2169286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f8f4efe9a50cae5b5cc5d7a892f505a39b8324d5631ebed943c6ebd7c325fe. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/GBLFP2169289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8299a6ed70baa52ec4936ada3e2a2d9957004bf2e9a96512270fec0df77e7e4e. 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/GBLFP2169294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ff96a383323c5ad46ede3df035ae648f08e2f30ae7eb13987758170ee4fcdd. 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/GBLFP2169302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75df6cb9814ede67d46a1b80de227cdb3db990f12abedaa2b277dbc6cc8293b. 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/GBLFP2169303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4d1acc2ad9f054d6264dda8b42373711614ab154f5f9d59f2d5e44efbfbdbe. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:49:06Z), 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/GBLFP2169305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef5f2cc0c9e3b1a3a3e4c02142efd36f4ddd17c8871635f8042949f00dd68db. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/UKXN22297380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9f21a3900c9d79af056c5a5f121c417850f4007c212ec84724c21a093a68b1. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/UKXN22297449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43af24fe21428155f50961cedebe085b8eaa9cb80aff8a47a54e2254c969a8c6. 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/QZMZ92393518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef5f2cc0c9e3b1a3a3e4c02142efd36f4ddd17c8871635f8042949f00dd68db. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/UKXN22297380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2e24e3f39359ea692913ff10b38f837bd692ca6b75ffe74beda4589dfc967e. 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/DGA0P2387899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d65de7eb15e33fb6c10bac3ea6a264e1c0420ce5f75158e5733e1c94d2fdbc. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FRX452447876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d65de7eb15e33fb6c10bac3ea6a264e1c0420ce5f75158e5733e1c94d2fdbc. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/FRX452447876.
La Senda de Pico de Oro (Tributo a José Alí Nieves)
La Senda de Pico de Oro - Tributo a José Alí Nieves
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a04f2c35ffc65897661299a61d78cf78a9a817c257f7c0ba16ce86a3f6191b. 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/QMFME2599240.