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 0xfde9658c2d89bf4f02f90fbb2bd49498f8ca4c80970bc10bff1d232bb1ce2ea5. Chain 2 (Bitcoin): anchored in block 954069 (2026-06-17T08:30:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a190e4e-0e37-4a46-a8bc-4cb4a757494a.json and https://artists.proofprofile.net/proofs/artist/7a190e4e-0e37-4a46-a8bc-4cb4a757494a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Suppressing an Unpleasant Feeling (Or the Day the World Trembled Down)
As the Stone Falls It Won't Come up Again
Un Coeur, Deux Coeurs, Un Coeur, Sans Coeur
De Tragedie van een Liedjesschrijver Zonder Woorden
J'ai une âme solitaire (Excerpt for Wandering Souls)
Live at Cinetol, Amsterdam 9-12-2020 (LIve)