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 0xd2549b7a3246c7d717561e28cafffca7f235fd3c9f04d4bbe2b62a7a59f77f9a. 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/c3bb4ce7-ef0e-4a88-b53f-840597fcd6ca.json and https://artists.proofprofile.net/proofs/artist/c3bb4ce7-ef0e-4a88-b53f-840597fcd6ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Taps: Remembering Our Fallen Heroes on Memorial Day
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 0xff4ab6f2ad607e13cf756ecd83a645e4e7ab689224b0671160a5bffb08a7eb37. 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/USA5R0822301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42825ccac15472f37bccc93ee302317585d69459d76f2c7cf7105fecc30912a1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USA5R0822302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29227d3d77dbca105bb49be3af8f1945d6d08bcf662800fb1dd0c28c87ce270. 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/USA5R0822303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710c81e630faf41bdd57c583f7dd854ddbb39f1640c3781105d925d6e1ab044c. 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/USA5R0822304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc997e968e8eb5f782aa0c236988ee335897c02666d6fcc7301db6cd63500800. 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/USA5R0822305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e8c4cf7355b2f8ea55bff5d7160997ed987c640dc1fb6f08e059837c74700f. 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/USA5R0822306.
United States Air Force Heritage of America Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd2e4a838eb5962a8b1dc0b25d846fa1b5676400468c37b7cdd4c2ceeb2c408. 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/USA5R0822307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0450afe5537cc6471bbefbe881ae64f4e157fc9a3e2b3741754ee06e4e1a0f3c. 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/USA5R0822309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2111d21ef560bbbd9e23447dc52c7b4e1d8c01defe37e563952cf21c536f252f. 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/USA5R0822310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5682f1752dfc6e4ad61a77f5a64f1360e973b9d13d2fb0c65b39233c7067c3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA5R0822311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4da27301d54dc1fc63766a844aed98ac99f1810b71c078b39c3dde99d9511aa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA5R0822312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0f896cf4e84c344608dbfa494c3e04c62016efb55d5f56f38dc571417183e2. 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/USA5R0822313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbded2196b9394d7190999b1bfa9ba9c4c889a7177ab3f692f2e1fe6a65b15d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA5R0822314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a25b573a487ff95b1552a2793b26ba95b9278ff622d0d1da25950b2dc5bdb8. 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/USA5R0822315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef9cf92cd960c653d9c9820589ea63c688166c0db08d3c8f61fa2218f2be1c2. 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/USA5R0822316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88032823ccaee7bcf56c208b944b7de827c7243983ab9d8c094e515bd8ecee9e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:03:22Z), 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/USA5R0822317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330ed4e5b338b080ea51bc80dffe790bf4dc41417d2162f41150b9d6a13ba56a. 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/USA5R0822318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2748d9294c4bb49d69a8ff2263061ece2e7c6e492b8c4ed5c7a224c9fdb5fdb8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA5R0822322.
Songs About The United States Of America
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e24758dd979569f6bddb345f33e9cb5e367ffc3469466ad5282cd30b3cfddb5. 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/USA5R0506602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17acd6a3975553f41ef30779b01e5a57f02e322408bddcfcc8d8b3c474f8bb0. 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/USA5R0506607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8dad7a53f07ff836f61cbb7a300cda41f70980ed8692abc3b6f8114b8d0a2f. 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/USA5R0558101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c1c800e6916b2077d318f99b7773aff2436ae2f5cc23bc1155218fb50082fc. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/USA5R0558107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1ca739e6e74826f374f6e2d9e5cbca24658e819e1e7d7666779007e44017c2. 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/USA5R0558108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427e3a7a2dd20d5e4d626cac7e4d365fdd2563dfb2adcf9b0d93edd232d21ffd. 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/USA5R0558110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf58fae580b5e0dc6f8aa0d3993807ce83797f35d50a7e03c358c6a40f4e4fe. 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/USA5R0558111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d412fb6115bf11f6595056404bf12fb3f80d6b063d702abd55957ca2c802f35. 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/USA5R0558112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56883730b7828754f43ffaecf3eea3ba38afe75121187eecd53c88e960d00f9f. 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/USA5R0558114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3351925d7942691f32b191e12e84e157f92d7c6ec2673335e3eb2e5b3845d3c. 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/USA5R0558116.
The Army Goes Rolling Along (U.S. Army Song)
The Best of Mozart: Classic Masterpieces
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e42f6f941aceb6c748b35cdde81ece0146d335da1367614673e817f1be6830. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USA5R1254024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534eaf7bf7d65bd709ab00eaa790e9c9f5d7b9ad316da63ad960932d1e8790df. 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/USA5R1253414.
A Patriotic Salute to the Military Family
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb005015d73890649ac7d251fa69c1385c369b885416ec97b3d8aacca5768f85. 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/USA5R0725514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86b88881ef81ecd5b444ff738203148bbe81fbdd0f9a71afc9004f67368656f. 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/USA5R0725506.
Obras Maestras de la Música Clásica, Vol. 3 / Johann Sebastian Bach
100 Military Marches, Ceremonials, And Fanfares for Memorial Day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002d7eac35ad93069c495ac6d6ba813150c007fc1e951778343a1e28f8a3a6ba. 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/USA371414018.
A Salute to the Armed Forces of the U.S.A.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d583831e60eb68a140bd18f4c3f3a10b1ac942c9eace460c7f4eff4cc4abe89. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/USA5R0410402.
Obras Maestras de la Música Clásica, Vol. 13 / Nikolai Rimski-Korsakov
100 Patriotic Military Songs: Marches, Ceremonials, And Fanfares
One Nation Under God: Instrumental Songs of Inspiration
The Patriotic Songbook: 100 Marches, Ceremonials, And Fanfares
40 Patriotic Classics for Presidents Day
50 Songs of the United States Military Bands for 2012
60 Patriotic American Songs for a Veterans Day Parade
Ultimate Anthology of United States Military Music