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 0x02f0aeee1e6f5957dabb1c8f1640e1eb490b9a9d05f33483218c8b48ba7eaabe. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a878e0c0-4c6c-4c5e-8ec1-1a8d8c620efc.json and https://artists.proofprofile.net/proofs/artist/a878e0c0-4c6c-4c5e-8ec1-1a8d8c620efc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Golden Age of Light Music: A Return Trip to the Library
The Golden Age of Light Music: Non-Stop to Nowhere
The Golden Age of Light Music: Melody Mixture
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 0xc62a8b2bccb56d1e9ddb2ceff94d03c29da06ae2cd64b3bb7480b2918829c2bc. 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/CH6631259705.
Leslie Jones And His Orchestra Of London
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82683b4e392c6215c7fb10890251a93048be88303f6a7f74764024f514713bf. 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/CH6631157503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e9553a6fc4254adee5bc6c312b2e34134974476588da77913f4bd16b88b8cb. 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/CH6631157515.
The Golden Age of Light Music: Light and Easy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb8a03f2f557a6c289eea6a8091968c4c7d858bac5a1e90b75ff2cba1eea39a. 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/CH6631158704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872f48d24b72f9945748dee198d0f10d5a8d352e631274bc62001f2f4223ff3f. 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/CH6631158714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebb128c6647ab5cff8003d3a4c087fc2ed98dbdd91214c54fcae08653775ee2. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:21:25Z), 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/CH6631158715.
The Golden Age of Light Music: Table for Two
The Golden Age of Light Music: Motorway: Production Music of the 1960s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9147201d83c71717dc7a5300dac9566317fbf052a1c5fbb4390188f25e01e6c4. 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/CH6631552607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ad8560e2fb5510409a06d8f5f187f8af16ec83743184fba5bb9e22f8791d0f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:38:35Z), 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/CH6631552617.
Kpm 1000 Series: Archive Series - Volume 6 (Light Atmospheres)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cd1c1231a00810d5dec91e2d14bddb268bed55a70c6acc520fcb4a887ba362. 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/GBBGL8700661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefca1ddb217f32fbbe75525da34c94f595a2483a478ae774b6c7fc190794382. 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/GBBGL8700662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73034489086edce3c394631eff96061cb012f6d72d66d8f2446ac4bb24b0bed8. 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/GBBGL8700663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7af3ae93374ed2fb9be956f68c0f859a6699723ccfac866033fbc83f8c9587c. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/GBBGL8700674.
The Golden Age of Light Music: Fiddles and Bows
The Golden Age of Light Music: Nature's Realm
Softly As In A Morning Sunrise (from 'The New Moon')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45676ccec613902ed76e7c28a46f83ee28c31360b5bc985d87c597fad91b78d5. 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/CH6631259412.
Cavendish Holidays presents Cavendish Chorale: Christmas - Pick 'N Mix!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff657f481ffc7b4849c425b1870073788676f21839aad375f89a8faf085821a5. 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/GBBGL9900781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ddcefcb088d73b782c505c1e3105c9cd693c40550a48799a8b096383a28497. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:23:30Z), 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/GBBGL9900808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d304abe972d32252d509a6fe008e45bb42e23ffea5c22d9ebc50b5b7b0bae8. 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/GBBGL9900815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794c5716229ed2de3525b8af5532f78913d2c7280cdbf049dd5f2a3d78e21781. 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/QMGXA1544783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c88fa438f8245cb50542f06cfde4a9c1ae3251bcf0ae5156d4d1218c84811f2. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:21:39Z), 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/QMGXA1544784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3545068ea021b3bfbb9d3485ec060cd6c5bd711d25ebbec9db6d14e81e2543. 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/QMGXA1544799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf10562e341cc28c454a07b2ccf8e8f1017d433b9e55035f0138e080cfceff6f. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:35:52Z), 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/GBGTJ0314352.
1950s Background Music, Vol. 2 - The Light Fantastic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b01e2909a899deb204d10d971c96a8e79dd77e9e888f108d8520615a82d82f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:55:12Z), 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/QMGXA1506654.