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 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 0xa4c42d4cb4c0a928102ed4835cb538f2ec9a105e7bcd19d300c5d8078b060577. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f262f1e-57ab-4047-a207-2dcf5f83254a.json and https://artists.proofprofile.net/proofs/artist/6f262f1e-57ab-4047-a207-2dcf5f83254a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Enja Heritage Collection: Confirmation
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 0x0fdd20aa9717bca4ae81b27808f5320b1ad3ffd46ca91759f22d91964f6c902e. 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/DEA597801400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe977a2539c377b2b173011d3642ac482228ea153f850cdfef53710ef247d1699. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:51:43Z), 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/DEA597801401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b985517a63e39c9e5824070b86cbb69528e62bdbac253b96249684eee8c464. 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/DEA597801404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b51b395621aae06836c944ee276f864569ba03db61850bbdab9092f73a5d9d. 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/USEWJ0702031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfde3db200061646cd63790623f52e357ddd917465f853ae3dd07e71c012ce4. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/USEWJ0702032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbbc00ee4ff7f513824d8bfdbe5bab64542aab558f030ad01f5adb89fa64302. 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/USEWJ0702033.
Les Géants Du Jazz: Overseas (Restored 2024)
Plays the Music of Rodgers & Hammerstein
The Tommy Flanagan Trio - Moodsville, Vol. 9
Beats up in Stockholm! Tommy Flanagan, August 1957
The Magic of 2 (Live at Keystone Korner)
Live in Mariac 1993 (Live In Marciac 1993)
Storyville Presents The A-Z Jazz Encyclopedia-F
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca34a309791bf5a077b0f5496ffe9456d996bf9832a775a7afb28c4b432765b2. 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/USFI85600001.