Black k
type: MusicGroup
popularity: 3
followers: 94
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78b45bcb5f0a6be98d23233e0f568f8f6c24d395810a022de3d9902e72d3a379
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0b62eaa-7b17-4dc0-ae3b-47ff062c1cda.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0b62eaa-7b17-4dc0-ae3b-47ff062c1cda.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a0b62eaa-7b17-4dc0-ae3b-47ff062c1cda
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x78b45bcb5f0a6be98d23233e0f568f8f6c24d395810a022de3d9902e72d3a379","name":"Black k","registered_at":"2026-06-20T05:43:11Z","symbol":"NIM1529355","token_address":"0xc64bf3f31e3681d2d31d5ff2e4eacbdfa08dcb3c","type":"artist","uuid":"a0b62eaa-7b17-4dc0-ae3b-47ff062c1cda"}
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 0x78b45bcb5f0a6be98d23233e0f568f8f6c24d395810a022de3d9902e72d3a379. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0b62eaa-7b17-4dc0-ae3b-47ff062c1cda.json and https://artists.proofprofile.net/proofs/artist/a0b62eaa-7b17-4dc0-ae3b-47ff062c1cda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x78b45bcb5f0a6be98d23233e0f568f8f6c24d395810a022de3d9902e72d3a379","name":"Black k","registered_at":"2026-06-20T05:43:11Z","symbol":"NIM1529355","token_address":"0xc64bf3f31e3681d2d31d5ff2e4eacbdfa08dcb3c","type":"artist","uuid":"a0b62eaa-7b17-4dc0-ae3b-47ff062c1cda"}
album: Treize
  type: MusicAlbum
  date published: 2016-05-26
album: M'en fou
  type: MusicAlbum
  date published: 2017-06-16