Key Havin
type: MusicGroup
popularity: 3
followers: 68
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8ed1cddfc1d7fdc3ba68e9d8fa1a81ecaf50284560bb8d381525908aae398c3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6a0f5e66-3b86-4b75-9c64-f6d56f86ab61.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6a0f5e66-3b86-4b75-9c64-f6d56f86ab61.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6a0f5e66-3b86-4b75-9c64-f6d56f86ab61
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe8ed1cddfc1d7fdc3ba68e9d8fa1a81ecaf50284560bb8d381525908aae398c3","name":"Key Havin","registered_at":"2026-06-17T02:36:28Z","symbol":"NIM1254388","token_address":"0x58a9dab557abeadd21670f30be7b97e54d3a80e9","type":"artist","uuid":"6a0f5e66-3b86-4b75-9c64-f6d56f86ab61"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ed1cddfc1d7fdc3ba68e9d8fa1a81ecaf50284560bb8d381525908aae398c3. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a0f5e66-3b86-4b75-9c64-f6d56f86ab61.json and https://artists.proofprofile.net/proofs/artist/6a0f5e66-3b86-4b75-9c64-f6d56f86ab61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xe8ed1cddfc1d7fdc3ba68e9d8fa1a81ecaf50284560bb8d381525908aae398c3","name":"Key Havin","registered_at":"2026-06-17T02:36:28Z","symbol":"NIM1254388","token_address":"0x58a9dab557abeadd21670f30be7b97e54d3a80e9","type":"artist","uuid":"6a0f5e66-3b86-4b75-9c64-f6d56f86ab61"}
album: Zombie
  type: MusicAlbum
  date published: 2021-04-20
album: Mode
  type: MusicAlbum
  date published: 2022-05-17
album: Win
  type: MusicAlbum
  date published: 2022-05-25
album: Win
  type: MusicAlbum
  date published: 2022-05-25
album: E.T.B
  type: MusicAlbum
  date published: 2022-05-27
album: E.T.B
  type: MusicAlbum
  date published: 2022-05-27
album: Perfect Love Story
  type: MusicAlbum
  date published: 2022-08-12
album: Perfect Love Story
  type: MusicAlbum
  date published: 2022-08-12
album: Here We Go Again
  type: MusicAlbum
  date published: 2023-01-07
album: By The Time
  type: MusicAlbum
  date published: 2024-02-23
album: Throw Away Pt.1
  type: MusicAlbum
  date published: 2024-09-10