Jukka Harju
type: MusicGroup
popularity: 2
followers: 62
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0bff6504cf94829398b8a4350f3c5da831a379a8654ec9aaf1bae3b0e7698521
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/79cdc7fb-096a-4647-a0c8-7f9ed564a697.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/79cdc7fb-096a-4647-a0c8-7f9ed564a697.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/79cdc7fb-096a-4647-a0c8-7f9ed564a697
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0bff6504cf94829398b8a4350f3c5da831a379a8654ec9aaf1bae3b0e7698521","name":"Jukka Harju","registered_at":"2026-06-17T08:03:35Z","symbol":"NIM1332420","token_address":"0xb460f2defe24e56085fb64d2fd25da0a07d04065","type":"artist","uuid":"79cdc7fb-096a-4647-a0c8-7f9ed564a697"}
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 0x0bff6504cf94829398b8a4350f3c5da831a379a8654ec9aaf1bae3b0e7698521. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79cdc7fb-096a-4647-a0c8-7f9ed564a697.json and https://artists.proofprofile.net/proofs/artist/79cdc7fb-096a-4647-a0c8-7f9ed564a697.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T15:44:10Z
  text: {"copyright_id":"0x0bff6504cf94829398b8a4350f3c5da831a379a8654ec9aaf1bae3b0e7698521","name":"Jukka Harju","registered_at":"2026-06-17T08:03:35Z","symbol":"NIM1332420","token_address":"0xb460f2defe24e56085fb64d2fd25da0a07d04065","type":"artist","uuid":"79cdc7fb-096a-4647-a0c8-7f9ed564a697"}
album: Northern Attraction
  type: MusicAlbum
  date published: 2016-12-05