K Hard
type: MusicGroup
popularity: 2
followers: 110
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c92c0cb5b73085d179c23236ac952b4393f54b048fc9d3c8db87c702c1ad4da
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a98be05e-ad69-455d-a95b-df3dd634d682.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a98be05e-ad69-455d-a95b-df3dd634d682.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a98be05e-ad69-455d-a95b-df3dd634d682
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6c92c0cb5b73085d179c23236ac952b4393f54b048fc9d3c8db87c702c1ad4da","name":"K Hard","registered_at":"2026-06-20T09:16:44Z","symbol":"NIM1576384","token_address":"0xd2040d3e9549f6bef920e112838cff96f80d2176","type":"artist","uuid":"a98be05e-ad69-455d-a95b-df3dd634d682"}
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 0x6c92c0cb5b73085d179c23236ac952b4393f54b048fc9d3c8db87c702c1ad4da. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a98be05e-ad69-455d-a95b-df3dd634d682.json and https://artists.proofprofile.net/proofs/artist/a98be05e-ad69-455d-a95b-df3dd634d682.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x6c92c0cb5b73085d179c23236ac952b4393f54b048fc9d3c8db87c702c1ad4da","name":"K Hard","registered_at":"2026-06-20T09:16:44Z","symbol":"NIM1576384","token_address":"0xd2040d3e9549f6bef920e112838cff96f80d2176","type":"artist","uuid":"a98be05e-ad69-455d-a95b-df3dd634d682"}
album: 2020 Vision
  type: MusicAlbum
  date published: 2020-08-27
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-02-22
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-10-25