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 0x4a20dd625758b34263415db31731b733595a91f8d3425bab66fdbdacd2ddb289. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a39286f-1936-4be8-8060-51629ef28daf.json and https://artists.proofprofile.net/proofs/artist/4a39286f-1936-4be8-8060-51629ef28daf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Missa Brevis for York Minster: I. Kyrie eleison
Missa Brevis for York Minster: II. Gloria in excelsis Deo
Missa Brevis for York Minster: III. Sanctus
Missa Brevis for York Minster: IV. Benedictus
Missa Brevis for York Minster: V. Agnus Dei
Responses and Collects for Salisbury Cathedral
Magnificat and Nunc Dimittis for New College, Oxford: I. Magnificat
Magnificat and Nunc Dimittis for New College, Oxford: II. Nunc Dimittis
Coronation Te Deum (Arr. S. Preston and M. Blatchly)
O Worship the Lord in the Beauty of Holiness
Messe à Deux Choeurs et Deux Orgues, Op. 36: I Kyrie
Messe à Deux Choeurs et Deux Orgues, Op. 36: II Gloria