Jyrki Sakari Kukko, (born 8 July 1953, Kajaani, Finland) is a Finnish musician.Rantala, Risto (main ed.): Who's who: Personal data about the current generation of Finns 2007. Helsinki: Otava, 2006. IS
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 0x2c7f644ff2d9831d1599e695de3a511e042bd1ed5672ab671a57810b7e2584f0. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22c38f4c-479a-4fac-b61a-cae3810f0471.json and https://artists.proofprofile.net/proofs/artist/22c38f4c-479a-4fac-b61a-cae3810f0471.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).