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 0x350dfc5c2b832a114c716e7aceb6652d7b678ef98d5378a0df9454571f79d0d8. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05610ddc-e959-4645-87ac-9235921bbd25.json and https://artists.proofprofile.net/proofs/artist/05610ddc-e959-4645-87ac-9235921bbd25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Night and Day (feat. Vinnie Colaiuta, Bill Cunliffe, Alex Acuna, Dan Higgins, Bob Sheppard, Jake Langley, Wayne Bergeron, Kye Palmer & Bob McChesney)
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 0x70636fd3f11936226981c7888c78f464389a22ef017a5d5c5a7ebf430d3ebee9. 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/QZBMN2000102.
Call Me (feat. Jake Langley, John Patitucci, Vinnie Colaiuta & Dan Higgins)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9f71b7334479420d4060e44d996d55012993b1e1612385644dd99b1cf5d072. 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/QZBMN2000105.
Loss of Love (feat. Jake Langley, John Patitucci, Vinny Colaiuta, Alex Acuna & Dan Higgins)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256d9b20e7046afe9c5095518244c819c3a3412c24942f4982758b8db0ac7f79. 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/QZBMN2000110.
Evil Ways (feat. John Beasley, Jake Langley, John Patitucci, Vinnie Colaiuta, Alex Acuna, Terell Stafford, Brandon Fields, Bob Sheppard & Michael Dease)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60067a26513e8e75e230a651d32b4ca4e5820199b49df57620b9ce1cf7e8c1f. 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/QZBMN2000111.
Inside Out (feat. Michael Dease, Terell Stafford, Rick Margitza & Bill Cunliffe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbdd04780756835b784bebd471b5b08a6606f3d607826f3016852b2495b9006. 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/USLD91721918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cddd620ac6bb99aacad9444dd64ff6568d44ac643f2335ccfa998e3d98f6b20. 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/USLD91721921.
Le Coq Records Presents: The Jazz All Stars Vol. 2
Balinda (feat. Vinnie Colaiuta, Chris Colangelo, Rick Margitza, Bill Cunliffe, Jake Langley & Alex Acuña)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd52ab39a2ccba9a224183a19014348bbc3fdcd5bc805de509d0d92e711cfc86. 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/USLD91735815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617bbd8a3542fa26b85cfdd2b1d4481836d8489ce1aff46c53e8a392131ed39b. 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/QZGMG1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236233caadeee0b25631d4a36b253f02aaaed1eb9a06464890f16add01919d76. 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/QZGMG1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe093eaca9d12ed01701d4b580fb7d08746f9a77dea3e69c2866c85edc2666c5a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZGMG1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849d18097b225b1a4218e3d7f6038addcd90c859ea8c89801b54c9cb7052a7cc. 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/QZGMG1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8589b068d13ef5b64f4ff7f54b423459fe5e2b2c2af2c8a08287c7c06af92a. 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/QZGMG1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb12aaf5f090cfd31c1306778d7e2831133efd319bbb6f49b8e6f1cac72e7b7. 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/CZB870801001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d438fecfa82b953b29d70e2b60dbce25339d8a4e46e891c540933555480c29d. 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/USQY51013885.