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 0x66b00cba9c524dde9364fb7aaba3fb1f5792da7759145b4a55968e26ec2c06a6. 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/58749385-193e-401d-beea-08d2bdb73627.json and https://artists.proofprofile.net/proofs/artist/58749385-193e-401d-beea-08d2bdb73627.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dueto Azteca, Mariachi Azteca (Remaster from the Original Azteca Tapes)
Dueto Azteca, Mariachi Azteca, Vol. 2 (Remaster from the Original Azteca Tapes)
Acá de Este Lado (Remaster from the Original Azteca Tapes)
Lo Mejor del Dueto Azteca (Remaster from the Original Azteca Tapes)
Serie De Colección "16 Autenticos Exitos"
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 0x9e17bd09cc19cacd969c1274c065dc006d4704f194e0431af61daf05463789b7. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:39:15Z), 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/MXF145200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299dc6b3dc69f3cf16d5ed74bdee6d1fd5c74509763c30ea5a5093fdd791dc8a. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/MXF145200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8951726e04510f7f37d90e8f55f97ab1fe6f4bf07ba2af78f430ad64f4e52a6. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/MXF145200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949e8934f37d23b6bbbe0317389afd1b4b7f9781329e88b90f2465690642daaa. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:33:09Z), 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/MXF145200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c49d7e74495d1c897d1f03bb8fe342b978f534d6de70565fed07b0b95a34417. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/MXF145300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60772671d27315236f7caea1e7140aa6ee252df769937cdd99e3c53f35aefdf9. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/MXF145400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ba02f068d4839e04f110c54f7acb0b6c78fa175e3e4226ad0e9f2dd9acec13. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:56:56Z), 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/MXF145400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3c9a41602539e2b2e8e0502718db4afec956158c6ee531c55d697b1c9daa09. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:27:19Z), 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/MXF145400041.
Dueto Azteca - Éxitos De Siempre - Feria Mexicana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3822943c13dad564b40beb85c6674937b6bdcb05978654a73cfeac4baaf00fc4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/MXF550601865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3a758dea41e1c12e66152365e6488fecc841eb9cbce41277bf19eb5babb15f. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:56:12Z), 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/MXF550601872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb87e2cb2cad8dfb665d1bc7c1435720670a94105f3153b0032c423f29c473b1. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/MXF147000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daeeeb1b1938d723118e1cb1c90e3f6c76eebbae92295dc6909694877cdb575. 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/MXF146300204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d98badbfa30b85567d1e5677bbf5bdd446b5adcfa24e4647f8bfeba15a63e3. Chain 2 (Bitcoin): anchored in block 957539 (2026-07-11T08:09:42Z), 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/MXF146300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5c46975051d8ffd1a563fd5fc5c67b9112ba04a9e379423a433776a822c21f. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:42:38Z), 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/MXF145500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe729e1d8d0752ffd7f53463aeec9fec0bc9714306a667e45278a44849aa1c9c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/MXF147000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba5d475a74bd67af17f6646dc8e4f83d5501ee471fd64c7d9c45be20310c74b. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/MXF145300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16148ee97e993ef8d4716099ebb15795c95b9305d9dd15539ba3697c45d11b31. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/MXF147000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b823ff5bb9fe888eb692615beb996af244c28f47bcd34cfe945f73465cfbb92. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:44:26Z), 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/USA2P2149587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf75b1bd9538bb179b6dffbd184199b44894799b7609ab55fa7a65721c1587b4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USA2P2149580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2d1c8a49a2e8179e4a8764776952474839026ce68e2da781c209064ace1e06. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USA2P2149582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c90a8db8a61da9b54e1215fbd4719891277066477b84349de04d15747525a3c. 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/QM6MZ1705519.
Tesoros de Colección - Los Mejores Duetos Rancheros de la Historia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3d6873b710c5db50fc1d1d092f421a1b9989a41e691e5cc4c35bfd8306a13b. 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/MXF147000025.