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 0x2daf01d18c6649c0afcca05bda5641eb9055bbd528995fc5c62b64a9028153ff. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/304a2bda-1039-4afc-939a-432827c4035b.json and https://artists.proofprofile.net/proofs/artist/304a2bda-1039-4afc-939a-432827c4035b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cleanhead's Back in Town (2013 Remastered Version)
Kidney Stew (The Definitive Black & Blue Sessions)
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 0xeacab54de7493f9c632771cb3ebca33e5c1856ab7c1eb9ab85653f672a0689d5. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:00:43Z), 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/FR6V86900145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4940ffeedbfbde9aacd45008514efd8fd71db2a0f0e192c300ef55d4534d7e76. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR6V86900149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc6be9899a8ddca9c9e8ac11ee524b9bab4adec8ad3ae3530188fd553ea14f7. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:01:49Z), 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/FR6V86900150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0860a9604a4ad403a34fa6e655db8e8888c0804d2e9e3f6989e6ef4f2a49707. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR6V86900151.
Jumpin' The Blues (The Definitive Black & Blue Sessions) [Paris, 1969]
Cleanhead Blues 1945-1947 (Historic Recordings - Blues Collection)
Eddie 'Cleanhead' Vinson Selected Favorites
Eddie 'Cleanhead' Vinson's Queen Bee Blues
Cleanhead Blues 1945-1947 (Blues Collection Historic Recordings)
Eddie ''Cleanhead'' Vinson (The Big Blues Collection)
Cleanhead's Back in Town (2013 - Remaster)
Eddie "Cleanhead" Vinson. "Back Door Blues" With the Julian "Cannonball" Adderley Quintet
Highlights of Eddie Cleanhead Vinson, Vol. 2
Masterpieces Presents Eddie Cleanhead Vinson: 10 Greatest Blues Hits
Golden Hits By Eddie Cleanhead Vinson Vol. 2
Cleanhead Swing - Eddie Vinson Blues & Jazz Fusion
Musical Echoes of Eddie "Cleanhead" Vinson
Essential Classics, Vol. 768: Eddie "Cleanhead" Vinson
Dark City Blues, Vol. 3 - Urban Grooves & Midnight Moods
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c27a7b1f9767f0b8b10fe4e51c55c9c75d33a2b8d7a2b82b39453a3445446f. 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/AUXN22530754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03d3f250cf8f0b58ebddac3aad237f7c32f59732cc106fb013ed9388c7e2a50. 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/US3H80600116.