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 0x5f7df5d0f4902099ecfde6d68c3ed49e7539ee8e84b3c3809b993bc1e7e8c03e. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c9858b1-0b46-407e-b8d5-b9fdec3d36a8.json and https://artists.proofprofile.net/proofs/artist/8c9858b1-0b46-407e-b8d5-b9fdec3d36a8.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
French Organ Music from Salisbury Cathedral
The Complete Organ Symphonies of Louis Vierne, Vol. 1
Great European Organs No.15: Lincoln Cathedral
Great European Organs, Vol. 15: Lincoln Cathedral
The Complete Organ Symphonies Of Louis Vierne - Vol 1 / Organ Of St. Albans Abbey
Popular Organ Music Volume 1/ The Organ of Lincoln Cathedral
Louis Vierne: Triptique & 24 Pieces In Free Style/Organ Of Lincoln Cathedral
English Organ Music - The Organ of Lincoln Cathedral
Classical Music by Dupré, Langlais, Massiaen, Ropartz, Vierne & Litaize with Colin Walsh
Langlais: Suite Brève, Incantation, Evocation - Messiaen: Offrande au Saint Sacrament - Litaize: Scherzo, Lied, Epiphanie - Vierne: Trois improvisations - Dupré: Evocation
Popular Organ Music Volume 1 / The Organ Of Lincoln Cathedral
Organ Symphonies By Widor With Colin Walsh
Love Never Ends - Sacred Music by Philip Stopford
Colin Walsh Plays Live at St. Ouen, Rouen on 6 July 2003