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 0x61a8dddade2805ea630df84bfa929d8c5e19d604a4ba5f428b5cade10ef3974b. 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/37ec31cb-8bba-4e58-a72e-5fc6b8e26556.json and https://artists.proofprofile.net/proofs/artist/37ec31cb-8bba-4e58-a72e-5fc6b8e26556.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 0x999b13b22ef0d61ffa72c1c15af948fa7e44ce2424155c4682c4bf9fb90b65c4. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/MXUM72008419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1444b8b03c2a30bc8b1e741ef69d2ab8c2522430e87703c5c088e8bf7f18fb50. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MXUM72008429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc02e1c19a5fca61554dcfab495e6242e36189d4c4d2e69d4632d86de300d64. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:11:08Z), 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/MXUM72008430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4f6bf54509ec77aeb1f52bbff4995517c2ae47de6cf5337660d201b0acc44a. 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/QZ5AB1902129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91268b9ba2acfbf1464560e1a4c185a9b6646a9979efcf956ff13a7179b8f37. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZ5AB1902134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dbf14d9b69bb8b18a51aab390fa134400f2ed4b331eff1b3e5d421a8fc1b7c. 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/QZ5AB1902136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60f512b64820efe9c66a9a9e082be62759f0c8391302efefe47042dcd2e4f02. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:10:10Z), 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/QZ5AB1902137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7e5c83bb69f071ecc766a5fd3d4ab43e206f008bd8342e32ceb6eb96e4d688. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T17:31:08Z), 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/QZ5AB1902138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8914fbcad7fb4c05284b16b1bfc8a5537f247492ab2e5daaf5c11456865467aa. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/US7VG1869659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10313b5ca3687cba4bc1d9c260c360d568775612b1be754ff616bbfa2391c0d9. 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/US7VG2006221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaba531dfeafbd0b852f98684533addffda8bf7b923fa9bededc60475be10260. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:36:47Z), 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/US7VG2001890.
Los Campeones Le Cantan A Los Famosos (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0cf17a3beee522935ef3f6b7cc4da607a130bbb94aa01d91d0c52b6bf47557. 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/US7VG2014687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc77196260a36e7bd9c93ec640bef70b7eddb02a66529649ad7dbcb0568d2637. 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/US7VG2014688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d25758ea620966ea077c2e8e8302ee6602fcab1f67cd2bbf6bcf78024c251d. 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/US7VG2014689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3eaab4d679e3ea55fb297c1e6709a0fc632bfad9170dd643170e7870438e60. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/US7VG2014690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24208df07559b2dbf372b9902cfcd39b50cb2a728293cb2d41685330797de1cc. 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/US7VG2014691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf9a028f4172b901bcfe3ad0c7011d2b9a4abc5242a92447dadcd28850c66a9. 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/US7VG2014692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fa8f188e3dc535940d781b49f41dda682c901a65abcfdfb4daec5ca18548d7. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US7VG2014693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4256de822ec072872d14b8653aa37f9bb2bd94c19010f91ca5bc37dbd8f179bc. 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/US7VG2014694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d82fd765060e27ea3315d5b5c2073c86994003982d836b3df6dfaa7919f8640. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/US7VG2014695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfedf586edc26ee23a8319f5f278c8d40cfb4917c846597ed13f4248e5192bba. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/US7VG2014697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7da767e2c42ddbff9a136b585cb7fd13e1faa073dd6d19699ad84c5f293912. 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/US7VG2014698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d526e480097af39ff22879e3ab4622c5032a2a6e15889df09b75285ed90450. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/US7VG2320899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80646e99d12f8adce700f5488c74d0d76f365288a602256af284c3158e69a36. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/MX2972320239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3e6065a21547785bc9f550eeb51c902dfe93b74fcf1d5f24b2cfc151c42d13. 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/MX2972320282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80646e99d12f8adce700f5488c74d0d76f365288a602256af284c3158e69a36. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/MX2972320239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175ac5fbac3ac1529204eb3b853327368a9037485fd2ad8981921019774326c6. 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/MX2972520674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04347c9e6728770fc9e6ba256bb3096649f86d0e8163c1964a459f87b35abfa0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/MX2972520729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724dc9951becdf61cc2ce02307e18735a80c0e24dd867d915d33e4ff18dca527. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T14:02:44Z), 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/MX2972520678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365fc315404a37f128b7b6f4440c3ba19a00832f0eb75f4595a70e2478e8f931. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/MX2972520730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c22890ab4572afe65f9441cd88fcdc2b2e19c6d8b714b1ca11b4a1d764f0d3f. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/MX2972520679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4bfba76885ae99ff948a3c51bd643722e192d10afd5e32790f04b121443496. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/MX2972520732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d4c423ee7cf9a128db7fb3744cbe92001f1e2c2ab20ec2ee919e6137bcd478. 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/USB271600276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68a3a837f006c134db81ce5a9dc30494f4251f937f6234dc79fc6f0e26350a9. 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/MXB711800128.