Double k
type: MusicGroup
genre: zouk
popularity: 2
followers: 81
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8f40821a07bf3c406905f7c6557986b065fa2d9dda8aca46df4b794965d41d7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9fdb1a13-b561-4e83-9180-194341feee72.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9fdb1a13-b561-4e83-9180-194341feee72.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9fdb1a13-b561-4e83-9180-194341feee72
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd8f40821a07bf3c406905f7c6557986b065fa2d9dda8aca46df4b794965d41d7","name":"Double k","registered_at":"2026-06-20T05:18:37Z","symbol":"NIM1523936","token_address":"0x9b1082b2b01d656a76a7d3dfe1c8dee9b20c6965","type":"artist","uuid":"9fdb1a13-b561-4e83-9180-194341feee72"}
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 0xd8f40821a07bf3c406905f7c6557986b065fa2d9dda8aca46df4b794965d41d7. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9fdb1a13-b561-4e83-9180-194341feee72.json and https://artists.proofprofile.net/proofs/artist/9fdb1a13-b561-4e83-9180-194341feee72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0xd8f40821a07bf3c406905f7c6557986b065fa2d9dda8aca46df4b794965d41d7","name":"Double k","registered_at":"2026-06-20T05:18:37Z","symbol":"NIM1523936","token_address":"0x9b1082b2b01d656a76a7d3dfe1c8dee9b20c6965","type":"artist","uuid":"9fdb1a13-b561-4e83-9180-194341feee72"}
album: Less l'amour kozé
  type: MusicAlbum
  date published: 2024-03-18