Ebbe Langberg (1 August 1933 – 3 February 1989) was a Danish actor and film director. He appeared in 45 films between 1946 and 1988. Career thumb Langberg debuted as Lotte's little brother in Ditte m
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 0x83c182de38dbffc9c3368b2f4d58dea49ffa2fefaeaa1d5f6378bcbda7756f76. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/848e9eac-4583-4616-8415-6334992b2dc3.json and https://artists.proofprofile.net/proofs/artist/848e9eac-4583-4616-8415-6334992b2dc3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).