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 0xf6af274616299d35d22282a352eb920a14603193ee283572734641dc1757812a. 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/0514d475-52cf-4b98-9f0c-04dff040261c.json and https://artists.proofprofile.net/proofs/artist/0514d475-52cf-4b98-9f0c-04dff040261c.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 0xe80a2e8274e9a1cf1278943e863a96bbc6a608ab49856b81ad465462cc5052d9. 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/USA561000178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d611cc7b42b9d750577c58bce7d7d443d095cca97e30ab812721096cc591ac0. 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/MXF019601662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9970f6fde800fc76f51fd67c1450cf43928ce86eb16dcf49bf6cc3694502023. 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/MXF019701245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67454069e9c44c93b4f9619c615635ff3e19c13c1c819bfca0477cbaca2308d7. 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/MXF019601661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f382b0c8a6001e442be60171afced93a9a38d9107ced758d5c40bb69418092. 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/MXF019701246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384e319346f1ee2c2989d0e3833559c6924a8bac3c1580ebc93267bf7852f203. 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/MXF019601929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5de4a20e6372b9df749ff8b16e9d826c430b2d64c3f7b6cc6a85c4def65fd6. 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/MXF019901269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3a7b029d164740681397d76909696f204ee1e474f9e89945ec1a0afff617e2. 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/MXF019601663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ac3aa349b92b4ea14a9e5e2fd66fbd6d2ad974d4490ed76743c5db9c15b925. 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/MXF017200407.
Vintage Dance Orchestras No. 184 - EP: Ritmos De Latinoamerica
Vintage Dance Orchestras No. 205 - LP: Amor En La Luna
Las 100 Grandes Que Debes Bailar Antes del Fin del Mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3965c2d7022c5c45e1b3cb0f851c5a04d1987bb59f7a11ed40b55efdc540afc. 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/MXF147900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac6d9a84686dee200e4386e4f4357efaae3cba9ef5e44fb93ff27ba6f65a2f7. 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/MXF146400127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067e8ad158d33f2a2f1e0bebf44b23b16f568287dbcae68e21b2ed0e5a020ecf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXF019502190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1ede801b8a543aee2176be6216a3b27a9cc1d39ffedca58948027b411e911d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:05:03Z), 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/MXF010400769.
El Gallo Tuerto (with Conjunto de Sonia López)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b4793a9505e6954015351c7ff8e8886973090c8d290e9efdae51564c49d249. 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/MXF146500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae27b2058a3f2cc08369b1b67a7da37d980e41aa8c0c47bd054d6a777061607b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:56:04Z), 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/MXF010001603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d5cd178e8b7893f04df7118fcbce31194db1f2722d91f789fa9621de9057b6. 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/MXF016700427.
Danzonera Mandinga De Luis Gonzalez Perez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c5cb62bee78bec615d4e7774c65e4672b91c1c8c35d87e1a3b911ca7abde6c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXF010400763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7979a0b4942f3ce5319979b2244fe0cd390a0e1481d9bb62cf5d353233190f7. 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/MXF010401530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a31ef2f81a52934a372b9cc702f4ae8edd4764879404bdcd0ebe232771627b. 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/MXF146500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77703e7bdae8989d2850f9db9211a31202d2ef495a2a47c09245fb6ed4783de. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/MXF019601930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d282d3cd6be76a52c1fd3bf898164909b3b547629b7d03840254a21feec2802. 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/MXF010101520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9127090394cca175b57d3dfe14eb6216b3b673bd5d7e67715c007dcade436e. 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/MXF145000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcffb38fe91b6c1435f68964cd896ef589784f4740e50fd03b67f220e255b345. 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/MXF010400787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38494186840fae03a7e31a2850c74adb6b5310df4877b1d5f340024e71f9ebbe. 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/MXF010400782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a909d53d1bddb00fd08781c9755bab1831e17c28b67975b9ea6f721267197f8. 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/MXF016500141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c4a7ff36e857143a7d007d008af5180da9263a2628969f05c2167df9f9d578. 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/MXF019701138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf774a6ced799525cb47588469dd71df5c07efe91c52029bacd125baf6cdb45d7. 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/MXF010101521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a53bfdd1bf1223e686e8332b3a326c8e757232d9e93f5a8ecc525dc1907d668. 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/MXF018600520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd38d3b7c3fb0bd2ce44493ea9f7acf95955559916a74ef02ed4ed1bd7391856. 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/MXF019601853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d282d3cd6be76a52c1fd3bf898164909b3b547629b7d03840254a21feec2802. 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/MXF010101520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f8137a5cd166b590ec81756a3e4d05b24609c8fac31223aa09507c78c22bf2. 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/MXF019200799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3238daa0dc10221085dbadf87bec70ce757817035058c18cc9d61880b3a6ad9e. 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/BRBMG7500052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4183ce6fbe711e97b815c2ce74df4979e224ebcf69ab07c571c57de6dcba423e. 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/USSM17900333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2873944c83e1f0a1bd27db762c3a54644f2d68cba6621cb1c0d59a15ed46f9d. 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/USSM19916125.
Cuando Vuelva a Tu Lado - What a Diference
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2e5ae4f6746eb81cfcac96a1e66141849078f2d3252b71ce336e975c539ea7. 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/MXF019502053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2037161a571156d1e8ddc9f5dd0f28ba03610a852eed780e5fa25e7699762875. 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/MXF019901271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06437d0ddf1139a8b32aa015634904f2056fa0ad6b0c6cc72095fb35aa1f746e. 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/MXF016500333.
Los Grandes Éxitos de las Décadas 40's - 50's, Vol. 3
Enlaces Pablo Beltrán Ruíz y Mariano Mercerón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732af6e6cc6a3d9025cb77ddff41b4872b7ddb6c34882d65f61dd976413629af. 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/MXF016500501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9106c30c65311b9d84c647000bb584a5660b69f9fd14aed89bdde6239d629d41. 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/MXF019900861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732af6e6cc6a3d9025cb77ddff41b4872b7ddb6c34882d65f61dd976413629af. 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/MXF016500501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a3980d2ddb46c66e2bb817e497d7dfdad1c74a954c77d2bcc049a923fa54c3. 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/MXF016200364.
25 Años Con los Mejores de México, Volumen II
La Salsa Se Impone Con Pablo Beltrán Ruíz