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 0x889c17ea2f3f2f391a0902dc1bd7893a34046bd8e569cacdf844eabd2a96ad9f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0220306-1876-4f85-b975-820ef9c66380.json and https://artists.proofprofile.net/proofs/artist/e0220306-1876-4f85-b975-820ef9c66380.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 0x74eb4c5e1fa33756dd53a1df06b6a254f459de8f09057cd77145dcc1cf4d468a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ES7002467301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa531fc6087befd2ed7f336c419801b2be7c50c69a65d1fc3dcb57684c6091126. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES7002254901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa427b90c666d695f0430ea207c69fa06941634e91ddd7f2130c484ade28fec0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES7002258001.
Son de Tambor y San Juan (Jacques Renault Edit)
Cumbia Cienaguera (Jacques Renault Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4994693eb4926d9e4fb49665562b32460cf40813984855cec228a6dab45f761d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES7002255401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf94d0589f989b70bfe7089018692dad8389f658f4df0a9e145fced30cf50dc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES7002255701.
Fue una Lágrima - The Phenomenal Handclap Band Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6450b34a85a4225a888fa50fd6eec7c0c42a0b4fd81860f36289ee241a39df7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLRD52424501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f034d8139d9019f11dd754d186d19c56f01e83f29a3f87f50249449c1fa124. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES7002257701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3133f667c7b3ff96df2de610cda33440dc5d3d16d216b7234520dd0b998cd85b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES7002257501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7c2c495137c98e76624bff12426cb3c6ba039c4fe8580c263ed9a5768189c8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES7002256001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02014218163aad6de0b4d80effe8d19caf3bcd9ddfd74698f22838e12c6d895b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES7002255201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc530cf44999b12ad2d1f2630cd41ec98794c2ebe275dc20f85036bc89046b479. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:07:04Z), 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/ES7002255601.
Magic Mushroom World (Brian Jackson Retouch)
Magic Mushroom World - Brian Jackson Retouch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1df66f3cfb0c8e8c70743099467da57d0367e1c6d237c8b0d0d8527d3614e2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES7002467401.
Jíbaro (Daniele Baldelli & Dionigi Version)
Jíbaro - Daniele Baldelli & Dionigi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca4184f6a71f28c683263f9ffc2776e55a411ad414bc6c0d5ec4b1aeda36f06. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES7002471201.
Tiahuanaco (Remixed by José Parlá & The Phenomenal Handclap Band)
Tiahuanaco - Remixed by José Parlá & The Phenomenal Handclap Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d24f09a8547d0bead8a13f43d4992c79fe25c085639ca22a906448bc80ed8c0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES7002369101.
La Música por Dentro (Remixed by José Parlá & The Phenomenal Handclap Band)
La Música por Dentro - Remixed by José Parlá & The Phenomenal Handclap Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f19f2b72aa68a43b8e70d5708a9a3881b51e2e079a4d0035a01f994b2048a9. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/ES7002367101.
Soy Una Nube (Chancha Via Circuito Remix)
La Rana Loca (Soul Clap Acid House Remix)
Fue Una Lágrima (The Phenomenal Handclap Band Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7c2c495137c98e76624bff12426cb3c6ba039c4fe8580c263ed9a5768189c8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES7002256001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3133f667c7b3ff96df2de610cda33440dc5d3d16d216b7234520dd0b998cd85b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES7002257501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4994693eb4926d9e4fb49665562b32460cf40813984855cec228a6dab45f761d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES7002255401.
Relafica Negra En Tiempo De Siembra (Gaudi & Don Letts Remix)