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 0xdb9fc518baa568f58ec072eb9179c209e4ed0efc031531a234034ab121bd8210. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52aff810-bad3-47bc-96c7-f34c32d00f6e.json and https://artists.proofprofile.net/proofs/artist/52aff810-bad3-47bc-96c7-f34c32d00f6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Temporada de Verano 2009, Vol. 6 : Grandes Conciertos de México
Temporada de Verano 2009 Vol. 7: Sinfonías de Schubert y Mendelssohn
Ciclo Gustav Mahler, Vol. 3 (Temporada de Verano 2010-2011)
Ciclo Gustav Mahler, Vol. 6 (Temporada de Verano 2010-2011)
Ciclo Gustav Mahler, Vol. 14 (Temporada de Verano 2010-2011)
Concierto de Gala Navideño: Más de Cien Voces en Escena
Orquesta Sinfonica de Mineria en vivo al Teatro de la Republica de Queretaro (Live)
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 0x9dc42ec28bfe2284b7e8b2ae484cb8c4894ea9f78952a7dcccf0aaa320647dbf. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/GBSMU6505953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19bc14ccdba58da4b8ca01d8cd47d66e32f3a66d70fe05d101faece67fea520. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBSMU6505954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a3d5c6cba55808d0fe5e589530b28b55e937bfbb1a54bafe6eb0641b9854d5. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBSMU6505960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b79f88e8cf0ddf290d915f947091d756f54724f6c30bd567f5885a6b1ffc7b0. 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/QZDA51943058.
Séptima sinfonía en la mayor op. 92: II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93627465f2e7d4978320160b31f82e0a7020ed3e4ce487b160277fdad19440a. 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/QZDA51943063.
Concierto Familiar Infantil: Fundación Carlos Slim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1d1704328960617c6df47ca0ac344c5a9f452e2841bf12f11788dc3f2d0949. 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/QZES51980097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6bfb7ee21a6eed4c4d0b5e465f8d854fd652f602cde62060f7dfd08545b0be. 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/QZES51980098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0f9e34d3be7c86ddb9e145a0179eacd3a6e1a9fd9956b42ebb6c989e435ef0. 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/QZES51980099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c7a0fe4da724446600236153f40a7a828672af1e7713ddf93b489c291c8579. 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/QZES51980101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1f408ec647c59369854b9f5f336bde2b2f411341eabfd7c3e0a84d628c61de. 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/QZES51980102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49889cfc061911e9c928d105030003bc2040beec557ded58c495c92d98aa9e98. 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/QZES51980105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e5432d6b96c69357bcf8d759a6e569c3b7f91dc268eeeed059a459a050ea34. 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/QZES51980107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1773df35ab1210687f3bbf58b77456a0a0d636ca62bddef7b8185c7ec83553c. 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/QZES51980108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c417657e227a341499e2563baf5f68b19bf1d7861e2493fa100886288855c46. 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/QZES51980109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459764b6476aadacf6575a264d9ccc093bde0a4054d8c4c36b679d73b74048ed. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZES51980100.
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 0x70b1bbd6ec5be81e095881b001e45c5fbc0ce3e1ceb0bdf7690a6c7448b12916. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/QZES51980103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ce2d3d977d0bf18053aa6473f4ce26cdba9574a9552d31adaf65ed573386a7. 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/QZES51980104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d7b1240fceb07150b3555a9d7dc8283cb4cfce0bb219a8d59d226a0e51733f. 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/QZES51980106.
La Madrugada Del Panadero: III. Danza Segunda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4717e00a278497208a2801d44cf5090f05775bb046e5689dca7daf1d214e5ab. 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/QZES51949833.
La Madrugada Del Panadero: V. La Madrugada Del Panadero: Danza Cuarta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c7b8a301be65df50b00cc1a20e2ed825cc87433fbe2eec4c01fe97c28fb35f. 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/QZES51949835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32f5ebff8df67efb7b72e92be4e7789a7f525bd0092bcca8de86883d9f77b3a. 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/QZES51949836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc436bcae518af295e8f023092e3009b0892bf614f91e9b45d7a348e3d1acbb54. 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/QZES51949846.
La Madrugada Del Panadero: IV. Danza Tercera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bed38bb08fefef872d7a9a6638a52ce942db6c7793845e49e4bc96674fb15a. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZES51949834.
La Madrugada Del Panadero: VII. Danza Final
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d3a69d8b677c47eea330649b33850fc7027e7c27bebb8e0918d23898f4497d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZES51949837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f26aeee84cda99a732fa4f887113f706d523d09f1de2adead8cdd95e1ba7b5. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QZES51949840.