Kurt Lawrence Sander (born April 27, 1969) is an American composer of choral and instrumental works. Biography Sander is currently a professor of composition at Northern Kentucky University. He re
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 0x6418ece800c80bd2dba0dc5fc7810cb2794d01998fdc7e73ff8f02237f7e51fb. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc59f2ae-2b30-4248-aa76-1955d239753e.json and https://artists.proofprofile.net/proofs/artist/bc59f2ae-2b30-4248-aa76-1955d239753e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kurt Sander: The Divine Liturgy of St. John Chrysostom