HIROM Jr.
type: MusicGroup
genre: j-rap
popularity: 2
followers: 109
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x517bb8c24fbc4f13283b4685cd32e40433e268c51d9e556a6481daad630efac6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953915
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953915
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/198119c8-a73d-4255-bcee-82c33654d92a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/198119c8-a73d-4255-bcee-82c33654d92a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/198119c8-a73d-4255-bcee-82c33654d92a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:36:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x517bb8c24fbc4f13283b4685cd32e40433e268c51d9e556a6481daad630efac6","name":"HIROM Jr.","registered_at":"2026-06-15T22:19:11Z","symbol":"NIM0849293","token_address":"0x715596946966374dbed57369d2d7170edbf9eeef","type":"artist","uuid":"198119c8-a73d-4255-bcee-82c33654d92a"}
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 0x517bb8c24fbc4f13283b4685cd32e40433e268c51d9e556a6481daad630efac6. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/198119c8-a73d-4255-bcee-82c33654d92a.json and https://artists.proofprofile.net/proofs/artist/198119c8-a73d-4255-bcee-82c33654d92a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x517bb8c24fbc4f13283b4685cd32e40433e268c51d9e556a6481daad630efac6","name":"HIROM Jr.","registered_at":"2026-06-15T22:19:11Z","symbol":"NIM0849293","token_address":"0x715596946966374dbed57369d2d7170edbf9eeef","type":"artist","uuid":"198119c8-a73d-4255-bcee-82c33654d92a"}
album: First
  type: MusicAlbum
  date published: 2013-10-23
album: First
  type: MusicAlbum
  date published: 2013-10-23
album: First
  type: MusicAlbum
  date published: 2013-10-23
album: Earth Song / Give My Kiss
  type: MusicAlbum
  date published: 2013-12-18
album: Earth Song / Give My Kiss
  type: MusicAlbum
  date published: 2013-12-18
album: Earth Song / Give My Kiss
  type: MusicAlbum
  date published: 2013-12-18
album: 月
  type: MusicAlbum
  date published: 2017-05-31
album: Majority
  type: MusicAlbum
  date published: 2018-10-03
album: 友よ (Cover)
  type: MusicAlbum
  date published: 2019-12-09