Daichi Hashizume
type: MusicGroup
popularity: 7
followers: 22
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdec15ba12ff5b5d1b0b5d022d7663faf4e5a45d14bb2e7044181bf89e46485d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/95ae993e-6c24-4e4d-9bff-7ec428be659c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/95ae993e-6c24-4e4d-9bff-7ec428be659c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/95ae993e-6c24-4e4d-9bff-7ec428be659c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdec15ba12ff5b5d1b0b5d022d7663faf4e5a45d14bb2e7044181bf89e46485d6","name":"Daichi Hashizume","registered_at":"2026-06-17T17:54:31Z","symbol":"NIM1473334","token_address":"0x96a8118c138633b731cdacbdc3717cfbc19b948a","type":"artist","uuid":"95ae993e-6c24-4e4d-9bff-7ec428be659c"}
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 0xdec15ba12ff5b5d1b0b5d022d7663faf4e5a45d14bb2e7044181bf89e46485d6. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95ae993e-6c24-4e4d-9bff-7ec428be659c.json and https://artists.proofprofile.net/proofs/artist/95ae993e-6c24-4e4d-9bff-7ec428be659c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xdec15ba12ff5b5d1b0b5d022d7663faf4e5a45d14bb2e7044181bf89e46485d6","name":"Daichi Hashizume","registered_at":"2026-06-17T17:54:31Z","symbol":"NIM1473334","token_address":"0x96a8118c138633b731cdacbdc3717cfbc19b948a","type":"artist","uuid":"95ae993e-6c24-4e4d-9bff-7ec428be659c"}
album: Merry lil Classics
  type: MusicAlbum
  date published: 2023-12-06
album: New Picture
  type: MusicAlbum
  date published: 2024-04-10
album: New Picture (Remix)
  type: MusicAlbum
  date published: 2024-08-14
album: Desire
  type: MusicAlbum
  date published: 2025-07-30