Jón Jónsson
type: MusicGroup
description: Jón Ragnar Jónsson (born 30 October 1985) is an Icelandic singer. He was signed by Epic Records and has released three albums, Wait for Fate (2011), Heim (2014), and Lengi lifum við (2021). Life and
popularity: 2
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b5d4eb84d5d20c4fc18a122a59ff13ad353dd1ca4ed4067fbe92ffc6eacb5bb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/feb5a305-0b9d-4ad4-b41e-c633ce29730c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/feb5a305-0b9d-4ad4-b41e-c633ce29730c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/feb5a305-0b9d-4ad4-b41e-c633ce29730c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6b5d4eb84d5d20c4fc18a122a59ff13ad353dd1ca4ed4067fbe92ffc6eacb5bb","name":"Jón Jónsson","registered_at":"2026-06-21T18:26:25Z","symbol":"NIM1999052","token_address":"0xb73336ed321d4ef6eb756a0aa4d8b48caa6b12eb","type":"artist","uuid":"feb5a305-0b9d-4ad4-b41e-c633ce29730c"}
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 0x6b5d4eb84d5d20c4fc18a122a59ff13ad353dd1ca4ed4067fbe92ffc6eacb5bb. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/feb5a305-0b9d-4ad4-b41e-c633ce29730c.json and https://artists.proofprofile.net/proofs/artist/feb5a305-0b9d-4ad4-b41e-c633ce29730c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x6b5d4eb84d5d20c4fc18a122a59ff13ad353dd1ca4ed4067fbe92ffc6eacb5bb","name":"Jón Jónsson","registered_at":"2026-06-21T18:26:25Z","symbol":"NIM1999052","token_address":"0xb73336ed321d4ef6eb756a0aa4d8b48caa6b12eb","type":"artist","uuid":"feb5a305-0b9d-4ad4-b41e-c633ce29730c"}