Purple Days
type: MusicGroup
popularity: 4
followers: 171
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2541f869811fb79572828c39a87bb72ad3d51bc31d3bb7794480aa6ea3e08564
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe388b74-bf80-4725-a34d-3bc1a08334f8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe388b74-bf80-4725-a34d-3bc1a08334f8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fe388b74-bf80-4725-a34d-3bc1a08334f8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2541f869811fb79572828c39a87bb72ad3d51bc31d3bb7794480aa6ea3e08564","name":"Purple Days","registered_at":"2026-06-21T18:15:37Z","symbol":"NIM1996688","token_address":"0x5e18342779a504ece278f5ee81afeae9204f0704","type":"artist","uuid":"fe388b74-bf80-4725-a34d-3bc1a08334f8"}
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 0x2541f869811fb79572828c39a87bb72ad3d51bc31d3bb7794480aa6ea3e08564. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe388b74-bf80-4725-a34d-3bc1a08334f8.json and https://artists.proofprofile.net/proofs/artist/fe388b74-bf80-4725-a34d-3bc1a08334f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x2541f869811fb79572828c39a87bb72ad3d51bc31d3bb7794480aa6ea3e08564","name":"Purple Days","registered_at":"2026-06-21T18:15:37Z","symbol":"NIM1996688","token_address":"0x5e18342779a504ece278f5ee81afeae9204f0704","type":"artist","uuid":"fe388b74-bf80-4725-a34d-3bc1a08334f8"}
album: BRANDNEW DAYS
  type: MusicAlbum
  date published: 2010-02-17
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  type: MusicAlbum
  date published: 2010-03-17
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  type: MusicAlbum
  date published: 2010-11-17
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  type: MusicAlbum
  date published: 2011-05-04
album: 恋愛ティーチャー恋心
  type: MusicAlbum
  date published: 2012-02-15
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  type: MusicAlbum
  date published: 2012-03-14
album: READY STEADY GO
  type: MusicAlbum
  date published: 2012-08-22