Jarkko Kinnunen
type: MusicGroup
genre: finnish pop
genre: finnish rock
genre: iskelmä
description: 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
popularity: 10
followers: 198
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2a5b37107bec944e238426f937205c0747116d74a5ba9a23203bd0704074c69d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4787a0f-f6b1-4c8e-80a9-ee8ceef87c25.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4787a0f-f6b1-4c8e-80a9-ee8ceef87c25.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a4787a0f-f6b1-4c8e-80a9-ee8ceef87c25
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2a5b37107bec944e238426f937205c0747116d74a5ba9a23203bd0704074c69d","name":"Jarkko Kinnunen","registered_at":"2026-06-20T06:45:05Z","symbol":"NIM1544323","token_address":"0x884b051f15555152191b2ba853ff349f6ad23c39","type":"artist","uuid":"a4787a0f-f6b1-4c8e-80a9-ee8ceef87c25"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: 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).
  date published: 2026-06-20T08:57:02Z
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