Kjeld
type: MusicGroup
genre: black metal
popularity: 5
followers: 2684
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x29c8329c36123f6366cf733a95fbb2845f2ba1d8c8bbf33e9ab097789a49a05f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/52229054-7d01-40d8-a2d6-065fbeba8f4e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/52229054-7d01-40d8-a2d6-065fbeba8f4e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/52229054-7d01-40d8-a2d6-065fbeba8f4e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
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 0x29c8329c36123f6366cf733a95fbb2845f2ba1d8c8bbf33e9ab097789a49a05f. 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/52229054-7d01-40d8-a2d6-065fbeba8f4e.json and https://artists.proofprofile.net/proofs/artist/52229054-7d01-40d8-a2d6-065fbeba8f4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: De Tiid Haldt Gjin Skoft
  type: MusicAlbum
  date published: 2010-02-01
album: Skym
  type: MusicAlbum
  date published: 2015-03-02
album: Skym
  type: MusicAlbum
  date published: 2015-03-02
album: Banier fan Frisia
  type: MusicAlbum
  date published: 2018-10-11
album: Ôfstân
  type: MusicAlbum
  date published: 2021-02-15