1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81bdc82986f878321bbeb9bb15666b02b98ccc35761f88d7d6f29954848f5ed6. 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/74f05143-c38c-41a1-bc04-1db8a4f70635.json and https://artists.proofprofile.net/proofs/artist/74f05143-c38c-41a1-bc04-1db8a4f70635.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Widow in the Window / Mark Time - Original Version
Durcedìa (Filastrocca sarda in forma di tragedia) - Original Version
Il circo (Scene burlesche in quattro quadri) - Original Version
Waltz For A Young Widow (with NDR Pops Orchestra)
Ballad For Tony (with NDR Pops Orchestra)
Anderson Tapes (with NDR Pops Orchestra)
The Sweet Time Suite, Part II - For H. / Part III - For Jan
The Sweet Time Suite, Part IV - For P.A.
The Sweet Time Suite, Part V - Know Where You Are
The Sweet Time Suite, Part VI - Consolation
The Sweet Time Suite, Part VII - Freddy C / Part VIII - Closing
Three For D'reen / Blue For Lou / Mark Time
Windmill Tilter (The Story Of Don Quixote) [Remastered 2020]
The Cave Of Montesinos - Remastered 2020
Live '71: The Kenny Wheeler Big Band & Friends
The Cave Of Montesinos (Remastered 2020)
Turtle Records: Pioneering British Jazz 1970-1971