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 0x70855608f08e97764db12493a447527d3d40aefdf8260a15920750b72686d6b9. 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/cee6c5e0-191b-4e3d-be45-01ae88d339da.json and https://artists.proofprofile.net/proofs/artist/cee6c5e0-191b-4e3d-be45-01ae88d339da.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 0x3f7483ca2320320f03a7041799153382de3e667eda43634c93d7625f4dc8d71e. 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/QZWDD2384718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089174a405d70ef4dcc9c62e338410fadbe04a628cd502d0e647babf6c0fdba9. 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/QZWDD2384720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd603893f4ef6ae10b442fd80714182c0755818eda6fe98e2aef68afadd5557a5. 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/QZWDD2384722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf392be40dcbc9dd38f20b3ee0958f3d17b952ab389157b9a378fd0233063d2e1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZWDD2386631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96665d91a37df30e7d8d25f92dc6262131eaaeeb991cba6bc2474b1ee33165c4. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZWDD2386632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca42b424bdba9f2e1cd9c800467571ed23f83ec808f0a3bb5190e471bdbd882. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZWDD2384719.
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 0x1039cd394dd9fa54bb4ac7b5e8f1a234d9f218933eeb6ccd96f938b13949521e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZWDD2384724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713ecc8ace653a36bd6dcf63d6562ca30875a55934c23f6db345e6a3a8ce8810. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZWDD2386629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6aaa16295f9acd8a2ca211ee6bc171199e24f9fb794ff07b81ae6a548ba7c3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZWDD2386630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4472e7887d4d3ec66aed2a67a5c67cb8f67412265d94b3dd81302cfa53ca7ac3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZWDD2386633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996a54b87527514661d077650c41479b6759d5a270964afdc592bb9220c053e4. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZWDD2386635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5ab27386ca4de5caf6ec62c5f169ed708f74942b04740acd89de26fe9ce3ac. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR2X41848638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982d3594c1ebaa17bb229e6495b619284851450477027abde1050677925b3567. 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/FR2X41848639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53ec186037ef733015d01e54d4031ec8956b00884ae031d6695c76253f2753e. 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/FR2X41848640.
Popurrí de Corridos:El Ayudante / El Molino / Las Dos Hectáreas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4559cfaf06ce9083b597ad8b63d307a87715e159e42e18e24ebdc565be2399d. 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/FR2X41848641.
Popurrí de Sones: Son del Muerto / Son del Toro / Son de los Frijoles Bailan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99b9dd44997f2adf4e003edc16eaf0ad4c611891776b25416d36f04c9a3bf0d. 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/FR2X41848643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23d09fc19ce374b6d352a4d0f413842c6dc5512eac832dfc691cec1be409578. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR2X41848645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514e8a1886b5db64db3f86bead47f7dc8a89cfa51de73b1654671107c4a52eee. 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/FR2X41848647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa538a7784e8c33a12ee66b96e401e0b184ece455ce238b4fbe703268c8cc5fdb. 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/FR2X41848648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe701d4ce58dfa1e982bdc2c43fc460bab27a828671bf179680c18533b79ab916. 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/FR2X41848650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891dfeaedf45ad36e165176929fae5d6907ac0aa88e7566eaf1c956cf8537b18. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR2X41848642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d09f4156b07c6d5a956b73f84e981badd9dca2b1e92e7874176bdfa61de0139. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FR2X41848644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80be013530751d569d3583df5aecc426970cca69bd5cecbd31a69e2401e4ccf9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR2X41848646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf730a8dec40dc0ba051f79e530a7b5945c3f3f296254af962be558f291b074e8. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FR2X41848649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dd937475daea8241301e708c6162239771d7f12a0c65aa4b81e514ac32cc60. 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/QZDQH2419877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc397b271e032fbe5b83089a5f4c71504c5f9c6e82be9dc8685042ee157c9147. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLZJ2425806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1678ea0b9dd7f291949e6eacb6a55c28e3df4bc6c6aba59625fc5b309d251a7c. 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/QZWDD2386659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab3522f2e73d431bc9703fc48ffe8a0b4833dfcb267655ea1930d85ab76b923. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZWDD2386639.
Llore, grite y cante/Mi vida eres tu - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6b687d413825b15317210e058dfd75b17bebfaa0fd5d1f12c38b92bd74fbd9. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTV32585965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c1335a0a9a1e91993ce7b8eb7de29b37ab7c9ab9c8da91179132f8c8b38086. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTV32585987.
No me se rajar/La ley del monte/De un rancho a otro - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56f6a7b8c81441668fc4d6a36239735b5cac3f47fd7030c192a7186ed8ae635. 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/QZTV32585994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd330fc53dd5ed4cbad3cbcab1e54cc147e78161292157bfa87cff79a4a29d3db. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZTV32585996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bac721df0417fa9151490959216b11d4fa15fe3e460f586e91ceeb50aec8fb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZTV32585980.