thumb|right|260px|Andy Sheppard at Aarhus Jazz Festival (Denmark 2009) thumb|right|230px|Andy Sheppard (r) in Monaco with Carla Bley and Paolo Fresu Andy Sheppard (born 20 January 1957) is a British
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 0x6b8337723d831de51f059f2bd694ad2bde5b016792444be08b79b17c5ab1e2e1. 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/cfa3306c-39df-4e7c-942c-6cf2cd462c3d.json and https://artists.proofprofile.net/proofs/artist/cfa3306c-39df-4e7c-942c-6cf2cd462c3d.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 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 0xb38d7007abf72095e402b79be627299a47ef8d835eb817ac90f46549ebc662bb. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FR2HR1502010.
My Wife's Gynaecologist Doesn't Like Jazz - Live at Festival Jazz Sous Les Pommiers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe802ee1dfdab9fdbb4638969027f998c67a89d34c4141cb8f363378a8873c6. 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/FR9W12209851.
Zeus, God of Dogs - Live at Festival Jazz Sous Les Pommiers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d63bd3164adfc546b385b66b0052f08ba9b6561f2b438fc66026140b6a2cdc. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FR9W12209852.
Radio One - Live at Festival Jazz Sous Les Pommiers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06d6972f94efe9f927fb21bc3643063fa29ab57e26a6c343a19998d5b0743d4. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/FR9W12209854.
Here and Everywhere - Live at Festival Jazz Sous Les Pommiers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a12cebd592e821cd126d5dc6ae4baaf2656b1672fe108af1db86a1b928e36a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FR9W12209850.
M'Dout Masaï - Live at Festival Jazz Sous Les Pommiers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436e184f5316d67f17192e5cab98d0e2f990fd6e0d3e765b153048fd6101600d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FR9W12209853.
Loulou - Live at Festival Jazz Sous Les Pommiers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19aabd05a356f51d38cc400df665186e6c44da9bbcd1b1f5a0b57c86164c2e1e. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR9W12209856.
The Might - Live at Festival Jazz Sous Les Pommiers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde133a06380d0771aa445d8c7d0cccb979e903fa69439c6c50093c09ae99f97d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FR9W12209855.
Où va cet univers ? - Live at festival jazz sous les pommiers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f7fa0ee3fb69668c10af0fbf957522afcf42ade6563e375cced899f4b73e53. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FR9W12209857.
Kashmir - Live at Festival Jazz Sous Les Pommiers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86c7ea0d8b48c544c6eaf6028b06c6d335464d92e03b1fc729e62bb087455ab. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FR9W12209858.
Love in Outer Space - Live at Festival Jazz Sous Les Pommiers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14eef47751eb49d4e72de3d618fc082b101a8158199c40b0b881c1faacff827. 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/FR9W12209859.