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 0xbb706c7f39ed1f4162db5a347697b9c5691252e804829b3c9a84af228fedfeb9. 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/a2b07df7-d74e-4c7a-99c7-f46ff648aaed.json and https://artists.proofprofile.net/proofs/artist/a2b07df7-d74e-4c7a-99c7-f46ff648aaed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Golden Age of Light Music: Contrasts: From the 1960s back to the 1920s - Vol. 2
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 0x0562eca46da5d79da4ef65bcad5b48b5fda994edd333767daba82a826bedb84a. 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/CH6631452304.
The Golden Age of Light Music: Grandstand: Production Music Of The 1940s
The Golden Age of Light Music: The Show Goes On
The Golden Age of Light Music: Childhood Memories - Vol. 2
The Golden Age of Light Music: Musical Kaleidoscope - Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416eeba248a76a46781cad91cbd820b4f7eb8e2cead903de7244ca5e9c30c9b5. 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/CH6630754017.
The Golden Age of Light Music: Childhood Memories
The Golden Age of Light Music: Springtime
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00b8666e6561e8fd3ba26c28c9614331f1bc154a00a50a539ba7062cecf424e. 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/CH6631451616.
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: A Trip to the Library
The Golden Age of Light Music: Bright Lights
The Golden Age of Light Music: Buried Treasure
The Golden Age of Light Music: Joyousness - The Music of Haydn Wood
The Golden Age of Light Music: New Town: Production Music Of The 1950s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf070b861baedcb0816025016c2a058deab242b7516f630ce510219fbe7a33c87. 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/CH6631452402.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79a21658725121a1bc34da2be72b0a92ea559d141f1bdb5926cb51450acb946. 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/ATR981123799.
The Golden Age of Light Music: Charles Williams & The Queen's Hall Light Orchestra
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.
The Golden Age of Light Music: War and Peace - Light Music of the 1940s
The Golden Age of Light Music: Amor, Amor: Music for Romance
The Golden Age of Light Music: Light Music from the Silver Screen
The Golden Age of Light Music: Highly Strung
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d2bca1a6047a6f701073f3ef6903fe58d189d4120129373fadc4a5d75446f7. 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/CH6631056622.
The Golden Age of Light Music: Fiddles and Bows
The Golden Age of Light Music: The 1940s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08924070ebe3859236b0d064b18dd7a1f786d09746d428c9cec7de2b58244f07. 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/CH6630450206.
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.
The Golden Age of Light Music: Great British Composers - Vol. 1
Milestones of a Piano Legend: Sir Clifford Curzon, Vol. 10
Good Sport! (Nostalgic Music for the Armchair Athlete)
By Special Request: Percy Faith & Robert Farnon
Sixteen Going on Seventeen (From "The Sound of Music")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68af86ef98841c1db5c65c89775266e750ab6ebfd4cd8417f5b4af386c0118fe. 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/CH6631451707.
The Man Who Fell To Earth (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc838337f2d4f2ebc89f73a34d683ff3da4d8536a56713615931824b9032cb2b. 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/GBUM71604182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183ff1be70d4508ded34453b1547f3b6834646c6026b56a3d5924ce81b8719f2. 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/GBUM70712378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6602e51ff7bbf9193b680b4d3959acd606d3673e39e7c65f0ab14435bc8047a9. 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/GBUM71604184.
Escape in Time: Popular British Television Themes of the 1960s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311ffe048d8912fd184be8afddcd9238f9da4bff08fc7a76b8653f9075691854. 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/GBBLY1504886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899bde32b3f7e08fe4db848fb734461d7c163c3f2ee48f73ba6df1ab0fb9b82c. 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/GBBLY1504896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e271a8203f75140cec6dc5a53df86b0fe986f72fea29271a99a59860ddd964. 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/GBBLY1504897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a900db69de3852b8add6d70b9789b6fff04a0bee30499480404b2f26d79b895. 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/GBJ2F1200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd4f29140ff7749ff588bdd7c7a7b2a950685ff75e67b4c1edab305af1dcfca. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBJ2F1200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cbfc3cda213bdd2cb6b39618283c7187dd91d46c01d392596f5657a8a6cf02. 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/GBJ2F1200151.
Charles Williams and his Concert Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe323db163aefbe65cac1a7d8110f3bbd0cd46bbfab7c1173315295e2f0bd1ac4. 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/ATR981123747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe63817d43876c7dbd30825853bc83a6fe99b719545293b8d0f480a79f4814f. 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/ATR981123748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa981cda25258b78a7f9a6f72130daeeb3776db086bcded377f0d1ff3a8dce1b8. 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/ATR981123749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c3d27365f56774cf5743a650a47a9caa9e5c13cbc6ead89ca49a8674f8ef48. 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/ATR981123750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e165d616bfddb54fd3d8e5eaf69b4df7ba99fe9071cc5a0d2a0a432f186113. 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/ATR981123758.
The Red Shoes: Music From The Films Of Powell & Pressburger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd299e37f4e30914de5c5e69ef2360912d36de88dda918e1ba85b164ba148a91. 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/GBHBR0402896.
The Red Shoes: Ballet Music - 1948 Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6915c1c8425a08eebbe88c5e0c15d8e95f25d5acbb3d5ff08c9807f85a340f27. 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/GBHBR0402900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a7784ce86f65a9e753243c933cf26eb3f6b4a773302189dd5ac1d20e7896f8. 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/DES380019351.