Wolfgang Preiss (27 February 1910 – 27 November 2002) was a German theatre, film and television actor. Biography The son of a teacher, Preiss studied philosophy, German, and drama in the early 1930s.
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 0x82bb903654f1af8af50e83faaba1725cad56ad4d302628a09e78e80bece7a42c. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e8564d4-b12d-4053-9128-2c09ee0ea8ed.json and https://artists.proofprofile.net/proofs/artist/7e8564d4-b12d-4053-9128-2c09ee0ea8ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).