音無あふ
type: MusicGroup
genre: vocaloid
popularity: 5
followers: 250
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x730bfbe53bff4b48e4e1e3f28215778d07abdcf1f063fc2ef6ece27a1a90576a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44c23b5f-e4f7-4248-9904-4539e686a148.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44c23b5f-e4f7-4248-9904-4539e686a148.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/44c23b5f-e4f7-4248-9904-4539e686a148
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x730bfbe53bff4b48e4e1e3f28215778d07abdcf1f063fc2ef6ece27a1a90576a","name":"音無あふ","registered_at":"2026-06-16T13:35:38Z","symbol":"NIM1068086","token_address":"0xb5438bec41ce62253ffdaaeff7fb45dfa837ea3a","type":"artist","uuid":"44c23b5f-e4f7-4248-9904-4539e686a148"}
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 0x730bfbe53bff4b48e4e1e3f28215778d07abdcf1f063fc2ef6ece27a1a90576a. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44c23b5f-e4f7-4248-9904-4539e686a148.json and https://artists.proofprofile.net/proofs/artist/44c23b5f-e4f7-4248-9904-4539e686a148.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x730bfbe53bff4b48e4e1e3f28215778d07abdcf1f063fc2ef6ece27a1a90576a","name":"音無あふ","registered_at":"2026-06-16T13:35:38Z","symbol":"NIM1068086","token_address":"0xb5438bec41ce62253ffdaaeff7fb45dfa837ea3a","type":"artist","uuid":"44c23b5f-e4f7-4248-9904-4539e686a148"}
album: 奈落 (feat. 巡音ルカ)
  type: MusicAlbum
  date published: 2023-05-26
album: temp.
  type: MusicAlbum
  date published: 2023-10-30
album: temp.
  type: MusicAlbum
  date published: 2023-10-30
album: One room Utopia
  type: MusicAlbum
  date published: 2023-11-08
album: ワンルーム・ユニバース
  type: MusicAlbum
  date published: 2023-11-08
album: 零 (feat. 足立レイ)
  type: MusicAlbum
  date published: 2023-12-27
album: ぷんすこしちゃえ！ (feat. 足立レイ)
  type: MusicAlbum
  date published: 2024-05-09
album: パーテルノステル (feat. りむる)
  type: MusicAlbum
  date published: 2024-09-17
album: デカデンパジャック！
  type: MusicAlbum
  date published: 2025-02-22
album: Decadent Jack
  type: MusicAlbum
  date published: 2025-02-22
album: エフェメラ
  type: MusicAlbum
  date published: 2025-03-07
album: 偽中国語 (feat. 重音テト & 足立レイ)
  type: MusicAlbum
  date published: 2025-04-26
  track: 偽中国語 (feat. 重音テト & 足立レイ)
    type: MusicRecording
    duration: PT2M32S
    duration ms: 152842
    explicit: false
    by artist: 音無あふ
    in album: 偽中国語 (feat. 重音テト & 足立レイ)
      type: MusicAlbum
      date published: 2025-04-26
    genre: vocaloid
    isrc code: TCJPI2530578
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9a01876fb63138a6a5875bd9b53776f48eee2e6600fa73ec673a5630a19c3a91
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958383
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958383
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2530578
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T08:20:01Z
    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 0x9a01876fb63138a6a5875bd9b53776f48eee2e6600fa73ec673a5630a19c3a91. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCJPI2530578.
      date published: 2026-07-17T08:20:01Z
    audio: 偽中国語 (feat. 重音テト & 足立レイ)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.027
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.641
      additional property: Energy
        type: PropertyValue
        value: 0.976
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0.226
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.142
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.951
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.188
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Deadlock (feat. 足立レイ)
  type: MusicAlbum
  date published: 2025-11-07