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 0xca48617a489f42fecf402bdaf6bb3c283e2a4cd3d0eb66847b54bc29d52998d7. 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/ef3a421a-75ca-45d9-b094-2bd15ba485af.json and https://artists.proofprofile.net/proofs/artist/ef3a421a-75ca-45d9-b094-2bd15ba485af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x72b8cf12e70a3f09dc939ed5f346dd662dc554ef48b6db8ff9b1457017f282a9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:46:30Z), 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/USSM10020469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76436ac041db825024f9a2dd2d2b7321db8a372733dd6a96d97be2effb9cdb23. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:23:35Z), 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/USSM10012631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6fc252ca60525382f9d185cad720d27470345da228dd2c5bc17a4fb2cc36ef. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USSM10024644.
Fletcher Henderson and His Orchestra Selected Favorites Volume 1
Fletcher Henderson and His Orchestra Selected Favorites Volume 3
Fletcher Henderson and His Orchestra Selected Favorites Volume 9
Fletcher Henderson and His Orchestra Selected Favorites Volume 2
Fletcher Henderson and His Orchestra Selected Favorites Volume 8
Fletcher Henderson and His Orchestra Selected Favorites Volume 14
Fletcher Henderson and His Orchestra Selected Favorites Volume 12
Fletcher Henderson and His Orchestra Selected Favorites Volume 7
Fletcher Henderson and His Orchestra Selected Favorites Volume 4
Fletcher Henderson and His Orchestra Selected Favorites Volume 16
Fletcher Henderson and His Orchestra Selected Favorites Volume 5
Fletcher Henderson and His Orchestra Selected Favorites Volume 6
Fletcher Henderson and His Orchestra Selected Favorites Volume 13
Fletcher Henderson and His Orchestra Selected Favorites Volume 10
Fletcher Henderson and His Orchestra Selected Favorites Volume 11
Fletcher Henderson And His Orchestra's I'll Take Her Back If She Wants To Come Back
Fletcher Henderson and His Orchestra's Words
Classic Jazz- The Encyclopedia of Jazz - From New Orleans to Harlem, Vol. 85
Christopher Columbus (Selected Recordings)
Big Band- The World's Greatest Jazz Collection, Vol. 5
Big Band- The World's Greatest Jazz Collection, Vol. 3
Classic Jazz - The World’s Greatest Jazz Collection 1917-1932: Vol. 85
Big Band - The World’s Greatest Jazz Collection: Vol. 5
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 10
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 3
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 13
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 16
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 8
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 1
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 11
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 2
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 6
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 9
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 4
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 5
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 7
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 12
Fletcher Henderson and His Orchestra Selected Favorites, Vol. 14
Shades of Jazz, Vol.1 (Fletcher Henderson & His Orchestra)
The Best 50 Compositions by Fletcher Henderson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397b379b143a5fd13766c44e6ed2782cbcc98b6486c57ad102b63804508faaff. 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/USSM11106305.
Satchmo: The Decca And Verve Years 1924-1967
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a74af4deecd23ad2363f199504c2ed97cfde355c3176c5c62e91f5b648afc83. 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/USGR19906144.