Kari Svendsen (born 5 September 1950) is a Norwegian singer, banjo player and revue artist. She was born in Oslo, and has been married to singer-songwriter Lillebjørn Nilsen. She was a co-founder and
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 0xf67e8f6a728ecdc84daa5b7866dc6877c8e862b7891d5a9c09fcb81771c16d66. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1706cb78-e764-47cf-9756-47fe25b948e1.json and https://artists.proofprofile.net/proofs/artist/1706cb78-e764-47cf-9756-47fe25b948e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).