ハル
type: MusicGroup
popularity: 16
followers: 183
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42af250da9a0e1da978251633d2ffa7286ba9e918d40aab3688fed6f92e5c828
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953762
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953762
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b76d85f8-4efb-442b-a32b-9ef2d3d00cdf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b76d85f8-4efb-442b-a32b-9ef2d3d00cdf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b76d85f8-4efb-442b-a32b-9ef2d3d00cdf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:21:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x42af250da9a0e1da978251633d2ffa7286ba9e918d40aab3688fed6f92e5c828","name":"ハル","registered_at":"2026-06-14T23:53:45Z","symbol":"NIM0616479","token_address":"0x6430da67b00c30558f9e8edce0214633842f34ba","type":"artist","uuid":"b76d85f8-4efb-442b-a32b-9ef2d3d00cdf"}
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 0x42af250da9a0e1da978251633d2ffa7286ba9e918d40aab3688fed6f92e5c828. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b76d85f8-4efb-442b-a32b-9ef2d3d00cdf.json and https://artists.proofprofile.net/proofs/artist/b76d85f8-4efb-442b-a32b-9ef2d3d00cdf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:21:23Z
  text: {"copyright_id":"0x42af250da9a0e1da978251633d2ffa7286ba9e918d40aab3688fed6f92e5c828","name":"ハル","registered_at":"2026-06-14T23:53:45Z","symbol":"NIM0616479","token_address":"0x6430da67b00c30558f9e8edce0214633842f34ba","type":"artist","uuid":"b76d85f8-4efb-442b-a32b-9ef2d3d00cdf"}
album: さよならを聞くまえに
  type: MusicAlbum
  date published: 1992-08-21
album: 誰よりも…
  type: MusicAlbum
  date published: 1994-01-21
album: リボン結び
  type: MusicAlbum
  date published: 2016
album: Change Again
  type: MusicAlbum
  date published: 2023-12-27
album: ひとりきりの帰り道
  type: MusicAlbum
  date published: 2025-06-07
album: 通学路、ふたりの幽霊
  type: MusicAlbum
  date published: 2025-07-22