Erik Halvar Bertil Björk (22 September 1928 – 12 November 2000) was a Swedish actor. He worked at the Malmö City Theatre from 1962 to 1986, and he had many substantial film and TV roles; for example,
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 0x77feb855c5d74b123d8aafb8904eded7ba8712c0e993e54445ef597768aff8de. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb3b4194-b2a9-4f6d-90bf-19f950dbf0bd.json and https://artists.proofprofile.net/proofs/artist/cb3b4194-b2a9-4f6d-90bf-19f950dbf0bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).