Preben Uglebjerg (16 January 1931 – 31 May 1968) was a Danish film actor and entertainer. He appeared in nine films between 1946 and 1963. He was born in Glostrup, Denmark and was killed in a late nig
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 0x4e19b72fab1c319cbfe72da511b28b11c2256a6dd84cec750d6d538fe7e25651. Chain 2 (Bitcoin): anchored in block 954097 (2026-06-17T13:13:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ad6eb4f-b1a1-4e78-a985-1a3042a17d27.json and https://artists.proofprofile.net/proofs/artist/7ad6eb4f-b1a1-4e78-a985-1a3042a17d27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).