Claes Malmberg (real name Clas-Peder Malmberg, born 8 April 1961 in Gothenburg, Sweden) is a Swedish actor and stand-up comedian. He has worked together with Anders Aldgård. He has appeared in theatre
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 0x11774d0a89cbe2f469d2a58278b808be640abb2f3845a7bf46e4a35782de17c0. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9740d261-a554-424b-919c-6e282e2ffdb5.json and https://artists.proofprofile.net/proofs/artist/9740d261-a554-424b-919c-6e282e2ffdb5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).