Yung Hurn
type: MusicGroup
description: Julian Sellmeister, also known as Yung Hurn (born 18 January 1995) is an Austrian hip-hop-musician from the Viennese district Donaustadt. Since 2016 he has also appeared under the name of K. Ronaldo a
popularity: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9cc669f3c73f3ed079067bea3c846fa9fa1fbca9bc39942edfa18541d4588bb8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954063
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954063
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/47ef0135-4c6a-45cb-b3b4-0b57194a144a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/47ef0135-4c6a-45cb-b3b4-0b57194a144a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/47ef0135-4c6a-45cb-b3b4-0b57194a144a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:49:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9cc669f3c73f3ed079067bea3c846fa9fa1fbca9bc39942edfa18541d4588bb8","name":"Yung Hurn","registered_at":"2026-06-16T14:38:03Z","symbol":"NIM1082983","token_address":"0x9ec8a4eca33cb337a74542fb80ed0827263dee47","type":"artist","uuid":"47ef0135-4c6a-45cb-b3b4-0b57194a144a"}
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 0x9cc669f3c73f3ed079067bea3c846fa9fa1fbca9bc39942edfa18541d4588bb8. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47ef0135-4c6a-45cb-b3b4-0b57194a144a.json and https://artists.proofprofile.net/proofs/artist/47ef0135-4c6a-45cb-b3b4-0b57194a144a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x9cc669f3c73f3ed079067bea3c846fa9fa1fbca9bc39942edfa18541d4588bb8","name":"Yung Hurn","registered_at":"2026-06-16T14:38:03Z","symbol":"NIM1082983","token_address":"0x9ec8a4eca33cb337a74542fb80ed0827263dee47","type":"artist","uuid":"47ef0135-4c6a-45cb-b3b4-0b57194a144a"}