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 0x61e7db9faea526e0a1b1eb396e372c627ccd1b0f60185656e9d9441803790927. 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/9a206631-653d-4d32-b39e-79ff768d9676.json and https://artists.proofprofile.net/proofs/artist/9a206631-653d-4d32-b39e-79ff768d9676.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 0x00f76f5bf04afec8c18ba5041c492efbc75338a439ffff48faa445e010018e20. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:32:56Z), 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/USHM81249885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fbc65d380daa29c4d10cf6707d159051f9564eea8e0ed9862ad7ecf8ee1e2c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM81249886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813030a4c6bd92153fd20097e9f70d20a1a019ababc2270ce1c3949dfcbd29cc. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USHM81249887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4471803d0d5b521c9c1b43a87efcd0520a07c964ce38397658b15da9ae296278. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USHM81249889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6703d3e7cfbf9a665178a46c83b27a3dc6835212bc50a8bf18a79eb9a3bdaf7. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USHM81249890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c219115207d60a1c949e2a7f43295afcbe92910276f99338df771d48f9d4fd3. 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/USHM81249891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b1592bb6b8c31ae5118d237c3115268856d7c299a675e0ce92a24f773ed22b. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:03:47Z), 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/USHM81249896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f72976f36870e87ff0b48c6a57224b4d4d2c7bf15b86fbf281b9c1e51ef8c2. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/FR59R1655401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc2e97e17c3fe82ff829114b2cde7296ce7034a517405871c58c0f1021d60f7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR2X41692152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1afe4e6c8fa9ecafaed3220baa398cddf54a76fc40d8451ac2aab044a0250bc. 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/FR2X41692154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f018632dabd2d63c51aa6a4ba6f8447c2ce7d128a7d8aaeb60a1ba9750a310. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/FR2X41692155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8875b6be988795cf8926bdaca85f66213427177c3ffb41d11ec17cddf1ba6b. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FR96X1611748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462b15b0f94a07ca64a68e1a36759e004357f7ad3a45a467fa800de2cb72f7db. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:42:06Z), 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/FR96X1611750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533c31144def013d9efceb8edf12c9f88bad6562db9f055dd7d5e72cb23b2ec8. 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/FR96X1611752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe746d366eb41b9452b3771348a5974cfbbeb7fa6c4883c07ec2ca40ee773684a. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/FR96X1611753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fecc987ec50f6c8fa91a4a1f30f0689c5c5a23d9b8f0d572d1ee9a036a26970. 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/FR96X1611755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e5ebdcf029babaf8341fe5b04de6c0eb20157b1e9852fbf10a4b3e16966f21. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR96X1611510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe126fe2a4e1eda4837d0bf46134e1048d4dc0974277e9148f6e80338ff3aebde. 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/FR96X1611512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65af3e47ad47e16a3c8814aacc92f05ebf2a61aaddf4f0560c0f4a610eac5c96. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR96X1611514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d2be6146a6d8ca1d08edb73249b9ad81b83e86fc030de73eb7b9a8a86a1605. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:05:50Z), 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/FR96X1611515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd11ed20420a787a6f736251eb33002b19636f9f46f89427dd1177006f0da87d. 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/FR96X1611516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23310ab466ed7ece8c77251ca2e92d63a9b8039d8466548264167b0ac8f73e5. 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/FR96X1611517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36237cd1c774b939e9950054c1427e60c3a22510bf5eda8b036c03c6ef87e37b. 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/FR96X1611519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f08604311495913e8f7a3b6e578743ee4219f7fb563ab1f8c8ad961ba52d23. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/FRX201616651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c475a1e7c0e4baf0c9fdd85a8f2e9d6a9f40131468b3531b7eff7d4256e952. 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/FRX201616655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3045559f2584573117574589df3003ca6eefb91c7eba63ad3f4e1031f0e4678. 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/FRX201616656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e3478fe2b0a21077fa57538b1d1196d08b093b873dcb7b3281d71bd3b9d9d6. 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/FR2X41691614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3990a903a82f601532969196272681464b80086bbd2caaea17c304ef9e4730. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FR2X41691622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e1488765a04fe0dc1ea08cea2b4dc2c9b1562fd04c9e97cdada37fd918adeb. 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/FRX201616642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cea9e4649fad9ca111750b50865a901f965c0b9a1fde3fc1cc9543a7cb0225e. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/FRX201616643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc481016421e22854e63ef61e7518e775f0766d10f88b69443bb8dcf2aa9c7156. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FRX201616646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abf72c4254d6e92006ceff010b1495b04c5b14a9ca3773489552b9145302f2d. 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/FR96X1886762.
Gustos y Zapateados, Vol. 2 (De Guerrero y Michoacán) [Con las Mejores Bandas]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c43dba7d2f0e4ae0fd7a49d315d22b1df0f150dfbbd45eccd703fae9155220. 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/FRX201616792.