Howard Higashi
type: MusicGroup
popularity: 2
followers: 174
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x406c99075ad0f3ff0bf8bf238cfb3a8b276bec78daea7a030e66ce85ffdd30eb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6e683bd-5944-4547-a109-a4868450c0fc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6e683bd-5944-4547-a109-a4868450c0fc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f6e683bd-5944-4547-a109-a4868450c0fc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x406c99075ad0f3ff0bf8bf238cfb3a8b276bec78daea7a030e66ce85ffdd30eb","name":"Howard Higashi","registered_at":"2026-06-21T15:42:00Z","symbol":"NIM1961449","token_address":"0x1e6511f5e487383501ef856a55ecdc9c11ba6c1f","type":"artist","uuid":"f6e683bd-5944-4547-a109-a4868450c0fc"}
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 0x406c99075ad0f3ff0bf8bf238cfb3a8b276bec78daea7a030e66ce85ffdd30eb. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6e683bd-5944-4547-a109-a4868450c0fc.json and https://artists.proofprofile.net/proofs/artist/f6e683bd-5944-4547-a109-a4868450c0fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x406c99075ad0f3ff0bf8bf238cfb3a8b276bec78daea7a030e66ce85ffdd30eb","name":"Howard Higashi","registered_at":"2026-06-21T15:42:00Z","symbol":"NIM1961449","token_address":"0x1e6511f5e487383501ef856a55ecdc9c11ba6c1f","type":"artist","uuid":"f6e683bd-5944-4547-a109-a4868450c0fc"}