Kougan
type: MusicGroup
popularity: 20
followers: 1105
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d69cb8b4a52818ac768d8be212d97566b5c08afc611f2555afb9ffee1d8f885
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953633
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953633
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/34645566-90b5-4ab5-9a61-c7e543573d19.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/34645566-90b5-4ab5-9a61-c7e543573d19.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/34645566-90b5-4ab5-9a61-c7e543573d19
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T12:47:11Z
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 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 0x1d69cb8b4a52818ac768d8be212d97566b5c08afc611f2555afb9ffee1d8f885. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34645566-90b5-4ab5-9a61-c7e543573d19.json and https://artists.proofprofile.net/proofs/artist/34645566-90b5-4ab5-9a61-c7e543573d19.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T12:47:11Z
album: Plankton Diamonds (Metal cover)
  type: MusicAlbum
  date published: 2012
album: King's Chambers
  type: MusicAlbum
  date published: 2020-10-20
album: Out The Microphone (Instrumental)
  type: MusicAlbum
  date published: 2020-11-09
album: It's Over
  type: MusicAlbum
  date published: 2020-12-11
album: Auger (Drill)
  type: MusicAlbum
  date published: 2021-02-12
album: Diamonds (Plankton Metal Version)
  type: MusicAlbum
  date published: 2023-07-20
album: In The Air Tonight (Plankton)
  type: MusicAlbum
  date published: 2023-10-06
album: Rich Men North of Richmond (Plankton Live Session)
  type: MusicAlbum
  date published: 2023-10-28
album: Complicated (Plankton Metal Version)
  type: MusicAlbum
  date published: 2023-11-07
album: Slow Winter
  type: MusicAlbum
  date published: 2024-01-05
album: Old School Hip-Hop Freestyle Beats
  type: MusicAlbum
  date published: 2024-01-19
album: Biking Away
  type: MusicAlbum
  date published: 2024-06-21
album: Bird Watching in VR
  type: MusicAlbum
  date published: 2024-07-03
album: Bakuman
  type: MusicAlbum
  date published: 2024-07-12
album: Cyber Nature
  type: MusicAlbum
  date published: 2024-07-19
album: Ballad of the Ashen Queen
  type: MusicAlbum
  date published: 2024-08-23
album: Low Spirit
  type: MusicAlbum
  date published: 2024-08-30
album: Floating
  type: MusicAlbum
  date published: 2024-10-04
album: Regular Show
  type: MusicAlbum
  date published: 2024-10-18