HzFofo
type: MusicGroup
genre: anime rap
popularity: 8
followers: 132
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4de5ae944731fd53236045889571ae8e8de523e77ecf09ce0251db8011647106
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/980c1c45-09a8-4d3c-98fb-a0e039282f01.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/980c1c45-09a8-4d3c-98fb-a0e039282f01.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/980c1c45-09a8-4d3c-98fb-a0e039282f01
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
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 0x4de5ae944731fd53236045889571ae8e8de523e77ecf09ce0251db8011647106. 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/980c1c45-09a8-4d3c-98fb-a0e039282f01.json and https://artists.proofprofile.net/proofs/artist/980c1c45-09a8-4d3c-98fb-a0e039282f01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
album: Hakai Satsu: Akaza
  type: MusicAlbum
  date published: 2022-03-25
album: Lua Superior 1: Kokushibo
  type: MusicAlbum
  date published: 2022-03-25
album: Congelar: Douma
  type: MusicAlbum
  date published: 2023-01-17
album: Chacina de Hashira: Muzan
  type: MusicAlbum
  date published: 2023-01-17
album: Expansão de Domínio: Satoru Gojo
  type: MusicAlbum
  date published: 2023-01-17
album: Respiração do Som: Tengen Uzui
  type: MusicAlbum
  date published: 2023-02-01
album: Realidade
  type: MusicAlbum
  date published: 2023-02-05
album: Memórias: Aki Hayakawa
  type: MusicAlbum
  date published: 2023-02-15
album: Anjo Caído: Sukuna
  type: MusicAlbum
  date published: 2023-04-16
album: Raio: Zenitsu
  type: MusicAlbum
  date published: 2023-05-14
album: Flow Japonês
  type: MusicAlbum
  date published: 2023-05-30
album: Conto de Herói: Tanjiro e Itadori
  type: MusicAlbum
  date published: 2023-05-31
album: Serpente: Obanai
  type: MusicAlbum
  date published: 2023-05-31
album: Rima na Mente e Copão na Mão
  type: MusicAlbum
  date published: 2023-05-31
album: Incêndio
  type: MusicAlbum
  date published: 2023-06-07
album: Névoa: Muichiro Tokito
  type: MusicAlbum
  date published: 2023-07-30
album: Deus: Suguru Geto
  type: MusicAlbum
  date published: 2023-09-07
album: Emoções: Hantengu
  type: MusicAlbum
  date published: 2024-03-20
album: Amor e Traição: Itachi Uchiha
  type: MusicAlbum
  date published: 2025-02-02
album: Pilares: Hashiras
  type: MusicAlbum
  date published: 2025-02-02
album: Anjos e Demônios: Meliodas
  type: MusicAlbum
  date published: 2025-03-19
album: Pecado do Leão: Escanor
  type: MusicAlbum
  date published: 2025-04-23
album: Vazio Sombrio, Ulquiorra
  type: MusicAlbum
  date published: 2025-06-06
album: Rei dos Reis, Qin Shin Huang
  type: MusicAlbum
  date published: 2025-07-15
album: Corvo Assassino, Karasu
  type: MusicAlbum
  date published: 2025-08-22
  track: Corvo Assassino, Karasu
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198293
    explicit: false
    by artist: HzFofo
    in album: Corvo Assassino, Karasu
      type: MusicAlbum
      date published: 2025-08-22
    genre: anime rap
    isrc code: QZZ772565445
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T18:49:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x24dc31ecaee36d7a183bdc119aa17042a4706384eeba6633fa386db9dd4e89de
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958601
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958601
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ772565445
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:27:02Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dc31ecaee36d7a183bdc119aa17042a4706384eeba6633fa386db9dd4e89de. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ772565445.
      date published: 2026-07-18T19:27:02Z
    audio: Corvo Assassino, Karasu
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.927
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.66
      additional property: Energy
        type: PropertyValue
        value: 0.725
      additional property: Speechiness
        type: PropertyValue
        value: 0.086
      additional property: Acousticness
        type: PropertyValue
        value: 0.174
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.003
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.254
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.082
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Culto Congelado
  type: MusicAlbum
  date published: 2025-10-17