Björn Berglund (16 October 1904 – 3 August 1968) was a Swedish stage and film and television actor. Biography Björn Nils Johan Gustaf Berglund was born in Jörn, Västerbotten County. He began his care
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 0xf556fc7a1f2264ae177f05e21da745893e4729b6199a6b32c3f606829f6d7660. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8953d97e-a006-4d9e-b7e2-98b7fde2664e.json and https://artists.proofprofile.net/proofs/artist/8953d97e-a006-4d9e-b7e2-98b7fde2664e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).