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 0x23a34c34fc5b63c1c5a674ce425d1797756f1b17c28f6ae1cdf31938ed26418b. 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/d2d26d25-21e0-462e-987c-ea2fd1de6a78.json and https://artists.proofprofile.net/proofs/artist/d2d26d25-21e0-462e-987c-ea2fd1de6a78.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 0xd1f8a8fbca24e3fdc4e306e640b63d1ef1f0940c8768ba0b11c787ed8b093f1f. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/US3DF1809988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5829a542d1b4af87e975baabd2d115cbf84d148cd5ca4cdb8f36454e76cc5cfe. 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/US3DF1820055.
Puros Corridos Con las Mejores Bandas Desde Culiacan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471403d918ab7a9949ed4dad283f6bddd86596675def4d6bc794f0c7f3ac352b. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USUM71909282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5692120042e34d93e7bfad0292f71e309a907c22fe8388c62db137b895786f40. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/USUM72008193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471403d918ab7a9949ed4dad283f6bddd86596675def4d6bc794f0c7f3ac352b. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/USUM71909282.
Pedrón Ántrax “Bajo La Sombra De Un Mango” (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d2be7d7d361f623072c85cac0a62d78a2101a87ed35cff3f9797f7aecfb5f5. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USUM72024230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d2be7d7d361f623072c85cac0a62d78a2101a87ed35cff3f9797f7aecfb5f5. 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/USUM72024230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764e1a698ff057ac750ade669017db2587d1d74d8858d6bd5a896e49afb06482. 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/USUM72114638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c02c92fd68fd5bb34b0adc251929caf3eabc62fc8025eeef7f2c4f5cb15646. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USUM72121135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764e1a698ff057ac750ade669017db2587d1d74d8858d6bd5a896e49afb06482. 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/USUM72114638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bbe59a13a719881eb1557f78e925e5ffa497d6345ec3331339bc4224628149. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/USUM72200889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecb265331027131d0dfc42cdaa4c7777c16d25bb129f1a0453bb76fe7563c6d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USUM72200883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfd185d314ffacaa470f8be0332136001bd3cc38ef211ead677463ceef785d4. 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/USUM72200887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bbe59a13a719881eb1557f78e925e5ffa497d6345ec3331339bc4224628149. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/USUM72200889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd901da4ad0e5da06fc9fb164d9305cbb3a85e48f729c39d985601e86fd7d934. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/USUM72215840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc2b6f6ae6c6cb4f25f2574797d18424bd61b6dd7384a78531cb61fae6e0f61. 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/USUM72302360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683894145c07e5ebc88c332b68c46289930aa0af4fcade03df74f37d4626800b. 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/USUM72302362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89428d019af7fe2ac548e4614f3ce76472ae5b92a4fc4d98b8c0a160473dac4a. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/USUM72302364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8278e35101109e0531598ec7d518c380cf975d9a9e9004031620a70f6219cdea. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZDQH2437432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31548b215f8ae9fc27702672f335c361face0b635102580cbd32b0c36e129051. 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/QZDQH2500173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee07a06c1ab03b9022abcc37976801ca7e7117ddd0b5d204beb8cccc1b3ac87. 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/QZDQH2525828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345de8303b9688fafa33e49686a1e3c9037e3c23bd3c5a08e807b8818a82fe2d. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZDQH2537281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574cb7d11385eaef27d5c36d8998d339c367d4b3947960dd1c1d0bcd1fd91273. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/MXUM72300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574cb7d11385eaef27d5c36d8998d339c367d4b3947960dd1c1d0bcd1fd91273. 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/MXUM72300043.