Albert Nicholas (May 27, 1900 – September 3, 1973) was an American jazz clarinet player, who was mostly based in Europe after 1953. Career Nicholas's primary instrument was the clarinet, which he stu
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 0x05cc897564512e2e082f39f65de3f80cd0debd2d6efe1d55d5b2442b0e0948ac. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/63290159-81a5-4967-9927-eea66e3e9fc0.json and https://artists.proofprofile.net/proofs/artist/63290159-81a5-4967-9927-eea66e3e9fc0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
With the Milan College Jazz Society (Mono Version)
Albert Nicholas with Alan Elsdon's Band, Vol. 1
Albert Nicholas with Alan Elsdon's Band, Vol. 2
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 0xa0291a3944299a093ef2dfa18d133d5f3bcd95e9c930808255f6a69dbf1ed1e4. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/US4B99904503.
Albert Nicholas - John Defferary Jazztet
Clarinet Duets with the John Defferary Jazztet & The Trevor Richards New Orleans Trio
Albert's Blues & the 44 Gerard Street Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a0cea31908146402c0f2319970bba860bf05fa3019db021eca3b9d6dd0e2bd. 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/GBEEJ1002088.