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 0xbb8fdb73da19d1633ff3582c780cbdb7fa2fe8476c2d8e2a028d40cf231a031a. Chain 2 (Bitcoin): anchored in block 954097 (2026-06-17T13:13:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b2d2c8c-6d1d-4888-bad6-94703291a9d3.json and https://artists.proofprofile.net/proofs/artist/7b2d2c8c-6d1d-4888-bad6-94703291a9d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sus Mejores Interpretaciones en Polkas (2020 Remasterizado)
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 0xd3ba14ad7be720d6a8c8a3b276890b9f8d836777c4d0738c374b9c205c3e79b6. 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/FR96X1912833.
Norteños de Nuevo Laredo (Remasterizado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbee36379bd153a487feb43e90ba984d86a3b5408dd917b2025009b224934dbc. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QMFMG1426617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1193d4ce91816d2759636d549f88d24d743e6f73dc1dc3ca943739780d8194a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QMFMG1426619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c01c726e2796de73bdcfa59de5a6ae4155a7d1e73a37a013b5f03ff8aee141. 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/QMFMG1426620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2691b20274959d1531810acf2087c26d3ef16fb8fd284180faf4e5235a8744. 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/QMFMG1426621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4070f310b27cee19f6a9766c615a04fe2d7f5c46fb1c47f9e70c3e409478fcf. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QMFMG1426626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6057cc3bfeb73c401d25eec8a18927ac8b15e78ecc2ae1414bf400107311fd. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USDHM1720538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4972677fec2ad6103945c1241da64c19563627aeb55e232be518725b6cf360. 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/USDHM1720542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cac7fb053cca437a7949a92fce101ee15c59d6262a5af3bd5ce51dfd8755d2e. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/USDHM1720546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270cc56e8965735052df4a94aed2d71b4613ad60d0c660c4881d15ab8e4dec8d. 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/QMFME1458386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1101e8408f5a25a1a4db7eb7a1139cc2c221082f1b0efd59a72ba42c9744db2d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMFME1458388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec484fd09d36b441e380b8962c26e9c2b5a1bc523a7e6dbe9f1f638d85e855a9. 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/QMFME1458390.
Mexican-American Border Music: An Introduction: Pioneer Recording Artists 1928-1958
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cc020b6da770cf926469c2d658cfdda3e06f9e3154cfe00f234782c8bf521a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USAP39470104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3017b5fea6eb8f965528e1ba73a9ee34d1b530d4b8bbf69b65166d5393b5ce. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/USAP39470105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed2ae5b21bebefda112bf40aea214a8931d51e50176a3ea9607514b4a9e91e4. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USAP39470110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf935c8d8f74bdb0cd75e4234d6b700a13c47b0fe624ff1175954a728716e8951. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USAP39470112.
Por Esos Montes (La Primavera) - Canción
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a2d524634f722ca171b5c934670f6ea6ec4416e8cd6f5beb25a4d4736ac4b2. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/USAP39470120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4f1ccbe3c3799f6a6872bc1e72b924902899ee959ee185786be6811114bdf2. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USAP39470125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59e2bf0f7b69e51e58ddd876d181ba652c8e0c9f6cfe10f62351398c36c1ef7. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QMFME1460770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba3e7fdb51af737a9f66b4ed89fada2afccd936df8c4bfe244cc10afd2a00b8. 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/QMFME1460771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a9523ad56fc41a00b4dc2360c97ab2a1593e9e4eef644c4398ab656fd2f36a. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/QMFME1460772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e56371b323c4d4c49437512b7e058fe569496944b4f88fce70a01be9a35103. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMFME1460773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927b705bb983fb82a204627d8b5724b3fa903533a89443be6b37a261c54c9c72. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/QMFME1460779.