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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2f3769c6abdea96512d77b8c3fd5335cb253bc4465d7925b936c2580744178. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/431ad92c-44d9-43e7-8324-c89e6faa9512.json and https://artists.proofprofile.net/proofs/artist/431ad92c-44d9-43e7-8324-c89e6faa9512.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Introducing Paul Bley (Classic Original Album - Remastered)
Modern Chant - Inspiration from Gregorian Chant
Emerald blue〜Inspiration from Gregorian Chant
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ea32d61e829bae074393669a829e941eb932b2ea4d6eba86c1bbafa5bf84c5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USMU10821145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7d6b33916bc6cef1103a79909f9dfff4fe7a1a11304096868c6bb5f64962fb. 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/QMPFN1200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdb55ac6ae78b4c85c008870f2ab86d4f8dd4cd09b4b831d35e3cd9b0419892. 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/QMPFN1200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd347dd6d5901db2ea2150bb07046dbd41d5eac8626d0a3674847e28520cf1125. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMPFN1200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72292a6b7dfdc0067f495ec5841741dfba621b7fdc1a85054ffc5fd9f0516b8f. 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/QMPFN1200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da3bf94bbf553b5d50010704ab263708ccaea8eedbc9779f0511374d6b03f72. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMPFN1200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14753853de2239f129dc4f5a55cbc6b9d40c806fc62f9100b6406dea1fcf644a. 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/QMPFN1200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c34c3cd88341e72452071e44b5adc32598117d81aa36bf4f37244ec8f643cb5. 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/QMPFN1200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fa25c0eff2e735787ec369d6b2fcaf8f5d5f08b69f3868e07e59f5cfe8060d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMPFN1200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50836df5ff7dde16828e6974fce01b193d4ae2fdc4b8e61257dfae99f7f9394. 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/QMPFN1200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf800c97b8fda3154994beedf4e2cbbfc8136b7b9eff0f8ec1d0b1fd86daf20d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMPFN1200092.
Original Jazz Recordings, 52nd Street Blues
The Essential Jazz Masters Collection, Vol. 25
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d778058ce979aaa2992a7a5d5682251a5bd25218123baea55bfc2caf753b84f. 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/USFI85200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4999a478381ceb6a3c022ebabbe0ad2604786c7f6f5d23a4ce383b28fbd013d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USFI85200153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfff90fa72405dc4a63083892440a112ed616a2cde52b73c45840084804b692. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USFI85500094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313ced327f6fbbb82a10307ffea4096b7fb54387ade783f776a43845d2b34266. 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/USFI85500095.
Salt Peanuts - Undubbed - Live / Massey Hall / Toronto, Canada / May 15, 1953
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe373c9d829bdd5da1bc7cdd07a63b90dd61121175078a694869aae6682be472c. 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/USFI89000315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f7bdd11a9594d03b051eb125b4328bc8fefd64c3a0679c7cc6c95e1c7e2817. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USFI85400199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf646ce065e136a9bcad3964353b23f308f383f8367a14f6f4c97a9ee9830356d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USFI85400200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c49a4c6287f3e0358a4f90ae8c7ee90ce759adc2ea215cd7fc4652333b51e5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USFI89000142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2c8a82f9680f55fc6050ae0a0c3ea261287e6bfaccc962a66462b6cd3cc316. 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/USFI85400202.
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 0xac5587c09774659723148886201bae017cac7a8c40223e6c94b435cec53a1d01. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USFI85400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6893e0157cfa3854c5f737759a8ef8011b16862016c229480c2560a55b070b4f. 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/USFI85400204.
Santa Claus Is Coming To Town - Paul Bley Trio Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533431f995568e1be579a016b71c7d27ab194ecbb44513c47b9d8f947450bfb9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USFI85400205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc24e52fe12fafd4f8e7bc771475948207c80ddf8564916cefbf85d1f3a2527. 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/USFI89000141.
Santa Claus Is Coming To Town - Eddie "Lockjaw" Davis Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd2f24c5fdebc9a838591d7089fc3a9b62aea60fc65e6e0db6ae4ae3a08349a. 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/USFI86000577.
ピーシズ・オブ・ビーナス DJ 大塚広子
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72efbb7d065e4584f6bec6965b555637269b405e33fe669a1c3f49d3e533fd02. 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/CAJ229714170.
Sings Just Before Dawn · Her Complete Recordings
Christmas Carol Favorites - All Your Favorite Holiday Jazz