Heikki August (Aukusti) Mustonen (30 April 1922 – 18 December 1993) was a Finnish farmer and politician, born in Sotkamo. He was a member of the Parliament of Finland from 1966 to 1979, from March to
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 0x980e01b73e4ac0c7a5cb5025314db2d182208ace2215798cc6bc8d7a0dc41fad. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1964684-10b7-41f9-a737-0d4c22001df8.json and https://artists.proofprofile.net/proofs/artist/e1964684-10b7-41f9-a737-0d4c22001df8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).