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 0x4b36f6f84532132c30245362c4babb34ffcde39d08318d5b419f6ac759c06ebd. 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/d69b71ff-7a49-431c-b5a5-8151f26eb450.json and https://artists.proofprofile.net/proofs/artist/d69b71ff-7a49-431c-b5a5-8151f26eb450.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 0x23ffa80847ed583658e67f6b939fcd6e7e875788240a6b7a8b184e4b6244cef5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZDQH1910006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425aa35bbea3134d75607395b3c7e075df0f21bc38bbee5556a67156d2769c26. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:28:41Z), 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/QZDQH1910008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59600fbe6e8d4f3511cdf2f02ce3b3c365e53564b69ccf0ca2526d3d1cffa84a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:37:36Z), 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/QZDQH1910009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cb2235e4e76c3e10e0ff49f9ebb446fd51784c807e96fded96d66b451a57db. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZDQH1910010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e58d6cdb57fd4632b64c997c92a81d6d2e67caf311765ae30c126c6e963fb24. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T22:52:12Z), 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/QZDQH1910013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db8dd589a82ca49aa0e4b32bf502986dd12b6f5c1adb050ea74829fdb301289. 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/QZDQH1910015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1075985517257b89a8478c3d2c896709da5c9bfa89f10d5492f1dc858a8f1ccb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:51:19Z), 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/QZDQH1910016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdaef744f25729bbe1a0758cd51a3e8cb20c29e20e21b51eccbb0d939f94cb8. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZDQH1909976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6751bb71a40bab2d8825b061e90cdf722188c7bcc353148df4d28ab87969564c. 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/QZDQH1909978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8943782d7c869dd7575cacf2683eb1d231e477ee7b32b09430896e373b6858. 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/QZDQH1909982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7fcbdbc0fc5d4f3a448b5cba53dd2d3f0114a65b87fa01fb9365ca7b245f573. 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/QZDQH1909986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97845ded5b075e8f35205dc0a4bff01e7b658293d66f5c2ee3ca1654a181b6b6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZDQH1909988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819ee8981eb91ffea06e71eb498e8fc6e49d37fdcb9fc59dcc59795aee240caf. 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/QZDA61822414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5f13fde4c18fe5713dc6a44e12be4fdbfb89c8dcb48c250a3c7ad91b159765. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:51:13Z), 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/QZDA61836947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd247d59681349e3e9440b05a5d30aabfd62f34b1fde075809f871cc0ea502133. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDA61830849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90b61753525edd52d1a5f03279fc2c948efb688320fe7a39b7e187cb42a9a8a. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZDQH1909991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c79393e40d5ba33bf0bf238a2e50460b19d4dd248c2cd5227dc7afb92be9e94. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:28:04Z), 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/QZDQH1909992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad78a467076a3d3da2bab515728fa36877b67e0782821a8e508e8bba3974c40c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZDQH1909994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf6dd5671de9f7b628911dbb629ee2266d71d81ccb702e6a4daf2e9bda66e74. 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/QZDQH1909999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866ac53349f909471d1a4c69bc5a3972b7271929f4613056fc87f50c9370e64e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZDQH1910003.
Una Noche Serena y Oscura (Legado Ranchero)
Esta Rola Es Pa’ Mi ’Apá (Legado Ranchero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2bb08f557a183896183f3fa01d1921d3a761fc41010d12708d8b6904e0fa821. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QM3DF2111890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe521dceeff7a3e7e0e8a59e88eb3fcedd99811b73172aad8e82e5b3b31cef9c8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:38:22Z), 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/QM3DF2111892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b3914f6ad4da796cf2bbf31d9c8e4729c4d34bbadcdae8a3a8a22d8e25cd92. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QM3DF2111911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5743981525478050eb7e8aeb95a9f65edf7c34bc383a8406b355b0af36277cdd. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QM3DF2112099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a23886301fdafcc0218559257d691b665574737cadc6fe7e30e2441e7d1b5a7. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QM3DF2112109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07b89bb566c55f8aeeca8c23ad52eb441d1a40352b5200ffba4b9858e4944eb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDQH2159193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcd8468a074e7964c97f29da2f83331eb07691eb63fd0c840e6febc4b9f1bee. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDQH2439363.