HAFUZA RYO
type: MusicGroup
popularity: 2
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x80576d64eb7f216d6e1a5eb15be9dba9f19200d33dc1e90964211e060408e0d3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18919734-1ab1-44e2-ab1c-bccffe92a0b5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/18919734-1ab1-44e2-ab1c-bccffe92a0b5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/18919734-1ab1-44e2-ab1c-bccffe92a0b5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x80576d64eb7f216d6e1a5eb15be9dba9f19200d33dc1e90964211e060408e0d3","name":"HAFUZA RYO","registered_at":"2026-06-15T22:05:32Z","symbol":"NIM0846037","token_address":"0x444d125841b1f2900bbbfd9f369d37b840b71f9d","type":"artist","uuid":"18919734-1ab1-44e2-ab1c-bccffe92a0b5"}
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 0x80576d64eb7f216d6e1a5eb15be9dba9f19200d33dc1e90964211e060408e0d3. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18919734-1ab1-44e2-ab1c-bccffe92a0b5.json and https://artists.proofprofile.net/proofs/artist/18919734-1ab1-44e2-ab1c-bccffe92a0b5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x80576d64eb7f216d6e1a5eb15be9dba9f19200d33dc1e90964211e060408e0d3","name":"HAFUZA RYO","registered_at":"2026-06-15T22:05:32Z","symbol":"NIM0846037","token_address":"0x444d125841b1f2900bbbfd9f369d37b840b71f9d","type":"artist","uuid":"18919734-1ab1-44e2-ab1c-bccffe92a0b5"}
album: 紫苑-ZION-
  type: MusicAlbum
  date published: 2025-04-27
album: THE EXTRA LIFE
  type: MusicAlbum
  date published: 2025-05-01
album: RAP COD
  type: MusicAlbum
  date published: 2025-05-01
album: 余生
  type: MusicAlbum
  date published: 2025-05-31
album: いらない
  type: MusicAlbum
  date published: 2025-06-19
  track: いらない
    type: MusicRecording
    duration: PT2M30S
    duration ms: 150510
    explicit: true
    by artist: HAFUZA RYO
    in album: いらない
      type: MusicAlbum
      date published: 2025-06-19
    isrc code: QZTB72503803
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T10:51:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb5e0f934b1399fcc6a7b728e993cc1e0c0a835f17b015d18a4a5d48eecfdf2cb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958867
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958867
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB72503803
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T11:08:30Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xb5e0f934b1399fcc6a7b728e993cc1e0c0a835f17b015d18a4a5d48eecfdf2cb. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB72503803 — a six-check JSON result.
      date published: 2026-07-20T11:08:30Z
    audio: いらない
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.537
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.783
      additional property: Energy
        type: PropertyValue
        value: 0.532
      additional property: Speechiness
        type: PropertyValue
        value: 0.075
      additional property: Acousticness
        type: PropertyValue
        value: 0.149
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.143
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.338
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.44
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Chapa Chapa/Mind's Home
  type: MusicAlbum
  date published: 2025-10-13