Mark Duley is a choral director and organist from New Zealand. He was the chorus master of the RTÉ Philharmonic Choir. Biography Duley is a first class honours graduate of Auckland University. Post
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efe30ab9f4401a1d6ccfd8c9bf11f043ffbe371ed711c3c5114a54000875dff. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bdb738b9-0387-4320-8003-9e4169865b6c.json and https://artists.proofprofile.net/proofs/artist/bdb738b9-0387-4320-8003-9e4169865b6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Stanford: The Complete Morning & Evening Services & Offices for Holy Communion
Stanford: Requiem / The Veiled Prophet of Khorassan