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 0x0c8788665ee053960c141e8af7eb04946572444ef449940b31aadac7e91b31de. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1d0d002-df74-4efd-b7bc-f00ebae5acb0.json and https://artists.proofprofile.net/proofs/artist/b1d0d002-df74-4efd-b7bc-f00ebae5acb0.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 0x79f402a38505cea4a25870b3fde7d944e3c607553dd72b18f6e2438c8aa5b786. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/AEA0D2134518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6863e96ba29d8b77dc11be596e5e1d40cef8a0d967be8452d7238d5979498090. 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/CH6541721335.
Musica Disco Mix: Solo Amigos / Traicionera / Pensando en Tu Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e1adc2864b1930ef98e177d1e902690faef830b01a5721c058351c04add80e. 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/QMFME2148470.
Mi Corazón Herido / Quien Tiene una Ilusión
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa115a96633d19d7ecf948a32bd06cf7065e6abeb7fc64b801cf0fce62d6f1e80. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QMFME2148546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ce93fd2dfc6861a90d0905e44f045de7de285b50015de106543b5fb75c2557. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:00:54Z), 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/QMFME2148547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fe3b462ded40a2b497c54fa746557c77b010188d0fba9f1479bbd2999a3b66. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QMFME2148552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4a9634629d7dd747c0d6c98e6c1db77b24b3d45b4293db9f342d9e8237a94b. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), 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/CH6541745291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb1a143443f9ff9b71835893a54a2e5d8e5af215d27a321e65b9a8ecd4a8e24. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CH6541745293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbffa7c9d6ad9ef2bc5a2c4886ce27a36ebb51587b18f0bb01f545d73637e8d. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/CH6541721325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f64372fcdbf18295f12703942b617d0d88602fafd2dfb5b6259004b109df6f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:47:07Z), 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/CH6541745295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c26fe22303630263f331e1408b2838ba24a8ee28ae9aa465dae63ab5f954c81. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:40:38Z), 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/CH6541745296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63576d348d25791db3c378b41907ac1ffe1c111ecd4acda821b40414f0584c79. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CH6541721328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f94c3a5f1bbaffd1e269499d2d415d45bd22692961d08e587f3df572554955. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/CH6541745297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32dabf2501e005b488cb12951c8294cd90fa8a69d2692527a8e28e0a0c264df0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:29:20Z), 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/CH6541745298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702307448d30361089c9be46b2d6d5481e64b1c5d33ca966150a759980f5c0e0. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/CH6541721332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8a69ddbe8b355d8ce89dda9f5e35ea3f6d914c62aff9806e361ebac0d6b9ac. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QMFME2148290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc858093a6e253289da9ee544985f68f2278df4ee243e6d355d9378e9d4109a. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/CH6541745289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25c844675927641d001fa64d0775d46e5648ada6ababd11c3a390682b4c901d. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/CH6541745305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040a5d0fbde83f5b86946eb0f279494db49cf3f51684393896ccf52ccabb004a. Chain 2 (Bitcoin): anchored in block 958677 (2026-07-19T05:47:23Z), 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/QMFME2148607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ab3a28a55db577398ce730358ff1620ae4b3e7c932128fb5ac73a65a943a71. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:23:35Z), 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/QMFME2148612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe898354ad1b7f71b7b48b1476c6e89a5e66fc4918027b37f0ada1a037a5f5978. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CH6541745300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0536f6dd8d80e6ecf313aa59b28b5d25e6f558a4bc0ec8efa367caafe23b7e17. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/CH6541941227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e7083166f4dab7a29f19e705ccb5f82730d86eebcff1ccaa982603d743ec77. 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/QMFME2148585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1df0c1e7a9a267572ef8cc17525bfd2530bbf57d7e9c07d49d91830268e02fc. 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/QMFME2148586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188c16cbfab2efedf88dfd92f7fc1f75fd483754bc24b0c06fc8e763aaedacf4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CH6541941217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aaa296a2be1e78622697949d86d2244052701db825b04aca48f6e16122c8a5e. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QMFME2148641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e6a9d62916ac7e0e64451680c3a472655742f1a7862dd0ec1656adeb52dfae. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:56:37Z), 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/QMFME2148642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177e2d1fb223e7bbdbf7a7d7c8366f19279e137575bc0c87baf37e545cee0518. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QMFME2148643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b83a01fde13e7295e370a08cde5c28716587eca92be329516c95535b91fcbbf. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:53:12Z), 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/CH6541721329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcba1550dccbe8f2e1d820016a0308bbedc1ecd3342c9865fef4f56b1c7af5cd. 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/CH6541745307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1475b8706dcc5b3c5c9e9bc177575befaa29deeb570ebe8b9dd372acd4f1fe04. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:04:10Z), 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/QMFME2148668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c67398a93b0d4c077b01dc54f27ca3d9e90aaa1552556ebf52577571dfcefd. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QM4TX2202251.
Lo Mejor de...grupo Maroyu (Cumbia Boliviana)
Taquilleros por Siempre (Cumbia Boliviana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8ae19069281bf99a1dce8234194d81161a61442bfa336e0c4907eeeb63db41. 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/QM4TX2201906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca89c83417ac7879a7e502e5336e7c1be6cdb090990b10ef13f82fc905321b97. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM4TX2201908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9c1113daa096444518471c83e02937ccdf9f712dbe797b1b32b69768954106. 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/QM4TX2201909.