Hanns-Friedrich Kunz (born 21 February 1945) is a German choral conductor. Life and career Born in Ochsenhausen, Kunz first studied music at the Staatliche Hochschule für Musik und Darstellende Kun
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 0x512dd7a285c51d45e789cc047cd1cee41a1c28c9560bc1c1437c56b3dfd76c38. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9de3e79-aac8-4b3b-99fe-a922d52e51aa.json and https://artists.proofprofile.net/proofs/artist/c9de3e79-aac8-4b3b-99fe-a922d52e51aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).