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 0xb941c1bb2e0e810050a55be9fbf26510e5eb33b94d0ad235ae313258fd91cabb. 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/2bc640d9-26d3-4d5b-b32a-c0629c57944f.json and https://artists.proofprofile.net/proofs/artist/2bc640d9-26d3-4d5b-b32a-c0629c57944f.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 0x59b795830aff6fd88d5d7794e7b9802716031c4ab7a8b4d0976a39301b721500. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/US3DF1315215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3742f62e61ad5906c41f010eb91880e99366f0ed814422ad9679c747df093f1. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/US3DF1315391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c869f1c685d0f6ae1c78f9a8bfb31e4330d01a5e2758dc10bbcc006bb40b87b. 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/US3DF1315363.
De 2 En 2 - 20 Grandes Temas...Lo Mejor Del Sax
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88fbe53a53d898d3b6a425a715320ddcb3a6055ccbc7ccadb216266a51fc0d3. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/US3DF1315209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2f75f7c357a8588ad0b2cf5d4a2849a79d4c829a569401da89442f34c8bc5c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/US3DF1315224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9a2a7774b9f7ce8c52f0db4fe3a5c9694782208485c4b23b23510e671b3df0. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/US3DF1315216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb391bd146ee99a32a230af3acb8e5201129bb53f7769b23ab1e7c7520c5583. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/US3DF1315205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce69f7925db1c59d821b1b1489cc6bb897e9efd333ce04cbe1648664d82ad6e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/US3DF1315244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc597fb0bc4a25c31ee87ca5f369f221d00af335513510026220541b17840d63d. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/US3DF1315196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7d227b8ceb9c43e9d9983d1bc6c14cea732c010cf2a249f96122ea640b71f9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US3DF1315178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859e2e9960a406047daf70f52994a30bd729066d9a197b13444b24cfeb733f7d. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/US3DF1315182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2da6e2623701dcc9d2e10ff74c45acf47403a8303dbabd9b48941c2c981b7a4. 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/US3DF1315213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7d227b8ceb9c43e9d9983d1bc6c14cea732c010cf2a249f96122ea640b71f9. 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/US3DF1315178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859e2e9960a406047daf70f52994a30bd729066d9a197b13444b24cfeb733f7d. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/US3DF1315182.
Eternamente Enamorado (Edicion Especial)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe553ee62c498f4ffa51a410a16eda0b39c796e9c8c00e8002ebced66564e54. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/US3DF1315299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115031c2f8cb6d6cf7f73678dc122be4f30aa9e66dcebf0077f34e11cb122cd2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/US3DF1315301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc597fb0bc4a25c31ee87ca5f369f221d00af335513510026220541b17840d63d. 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/US3DF1315196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8fc3b6a4438933a11e2837f3f58f767bf3be4c3d633fedf5fb673c579b996f. 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/US3DF1315199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1722ac86764a3168124ff1d02e78a49339e0f8465160b58da4f4eb69aacc7630. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/US3DF1315202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bbb45c0439cc0486b3ceefd5ca102e6d7650687d2148588a7f755e5ea21fe1. 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/US3DF1315210.
2 Consagrados Del Sax - Polo Urias - Adolfo Urias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5932433cb1ef5041bbc1d7e32aebb0f9b497e66974ddad43e3525b852bdde7. 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/QMFME1355441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd319f205ec9cd19e15bdf835b75dad0265eef838a1f981ec1992403de7f653b. 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/QMFME1355442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984e9ea4e2966dc6e262c1d97cda8deb11cf28684a7e0d7ff469c374ee0ea86c. 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/QMFME1355445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f49ae861fdecc915330fe1c972e5702399ab29af02eac6344469ee359e5400f. 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/QMFME1355446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a6ed36f620381aa9946cbc9fdeef8308345af7c967caad693630023c82ac6d. 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/QMFME1355448.
Lo Mejor de Adolfo Urias y Su Lobo Norteño Disco 3
Lo Mejor de Adolfo Urias y Su Lobo Norteño Disco 1
Lo Mejor de Adolfo Urias y Su Lobo Norteño Disco 2
Mano A Mano, Conjunto Primavera + Polo Urias
Eternamente Enamorado - Edicion Especial
De 2 En 2 - 20 Grandes Temas...Lo Mejor Del Sax... Adolfo Urias + Nortenos De Ojinaga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca06ddb71127fea1a037ff9d35b3dd851e7c9def13012efbb1cea2813114099. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZDQH1836159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca56af30e22ede583debcc247b9ca03d854b24f85fc070f7e4ae6fa4d43d6dc. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCAEU2048128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115031c2f8cb6d6cf7f73678dc122be4f30aa9e66dcebf0077f34e11cb122cd2. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/US3DF1315301.
Festival en Delicias Chihuahua (En Vivo)
10 Preciosas Canciones (Edited) (Norteño)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd753e77696a3b572a00ba3cccca198d879f0387fb59c8010e65d15df4ad9e80. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/BK4DA2323718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad83514446be04b2460b766f9857383692a20776ddcb9b1341c39826c53b364. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/BK4DA2323738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee0443112a433629155ddbfc7417e2dc0d59f8b49811714403880f673d8ea3c. 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/BK4DA2323748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fe4d41d6b73e05732b16404e5bc4b5f9e2d9bb5f71f5c8fd9c36f42f38aed2. 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/QM7281929558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7382a7de2700989e0bfa9bad4bc64af673e2736743cbce72c123b09c35f285. 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/USUM71311923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc349c59dafb569bce0debaf9461142780a69eed3a9fd3765500de7ba03023c86. 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/US3DF1315331.