Jarkko Juhani Kinnunen (born 19 January 1984 in Jalasjärvi) is a Finnish race walker. His trainer is Kari Ahonen since 1999. Achievements Representing 2001World Youth ChampionshipsDebrecen, Hungary10
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 0x2a5b37107bec944e238426f937205c0747116d74a5ba9a23203bd0704074c69d. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4787a0f-f6b1-4c8e-80a9-ee8ceef87c25.json and https://artists.proofprofile.net/proofs/artist/a4787a0f-f6b1-4c8e-80a9-ee8ceef87c25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kaksi väärää (feat. Sakari Kuosmanen & Tiina Räsänen)