James Edward Yancey (February 20, c. 1895 – September 17, 1951) was an American boogie-woogie pianist, composer, and lyricist. One reviewer described him as "one of the pioneers of this raucous, rapid
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 0x05b16542ccc3de666ca35c461388ef51fd7ab46ba70aaee51ea6d22c9cd0b0e1. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/308dad1b-e850-4ccb-8838-fb25807c9b1a.json and https://artists.proofprofile.net/proofs/artist/308dad1b-e850-4ccb-8838-fb25807c9b1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Yancey's Getaway - Piano Solos by Jimmy Yancey
Jazz Classic No. 12 Blues and Boogie (Mono Version)
How Long Blues - aka How Long How Long Blues
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 0xd1d097d49cab0c627d2f8a2f1a4d012c660c40d5142cc94893844f0bf2621813. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:26:34Z), 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/USAJ10100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5dd5f59912bc9476e44f89a904f4f1c8c4d5cfe3e09d5bad4acee1fc64464bc. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:28:07Z), 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/USAJ10100070.
Hey! Piano Man: Selected Boogie Woogie Sides Remastered - CD A
Yancey's Blues - [The Dave Cash Collection]
Beyond Patina Jazz Masters: Jimmy Yancey
Jimmy Yancey featuring Estelle "Mama" Yancey
The Classic Decades Presents - Jimmy Yancey
Top 60 Classics - The Very Best of Jimmy Yancey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e96fc384e29f61cff240089b4e8b763a1220fd1668cda2d27ae61236d7d6fc. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GB8XC1410261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0a3cc460fcb104975c7792f8613c8edf31ffc29d3b56ee612674b9e2d801d2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GB8XC1410271.
The Complete Recorded Works - Feb 1940/Dec 1943
The Complete Recorded Works - Dec 1943/Dec 1950