Hege Tunaal (born 17 June 1948) is a Norwegian singer. She was born in Bærum. As a singer she reached national popularity in the 1970s, releasing albums such as Olje, brød og vin (1972) and Vide med
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 0x6d758c36de8f0e98545ca0a505a84afe4f3ae3ce1c94098e2f9c2093438f90de. 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/9819e3bc-c934-4c29-b2e1-faa3b5662f42.json and https://artists.proofprofile.net/proofs/artist/9819e3bc-c934-4c29-b2e1-faa3b5662f42.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).