Udo Kierspe (14 October 1944 – 23 November 2025), known professionally as Udo Kier, was a German actor. Known primarily as a character actor who often portrayed eccentric and deviant figures, he appea
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 0xb2813921765372d07d9c8bb92c2ad0001ab29e354d757fb9398da8825c5267dc. 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/c83075ae-6a52-433c-b1bc-9d5d07b94ce4.json and https://artists.proofprofile.net/proofs/artist/c83075ae-6a52-433c-b1bc-9d5d07b94ce4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).