QUARTET NIGHT
type: MusicGroup
genre: anime
popularity: 31
followers: 42035
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x80c58d25208546b40ea4bce4a67135247dd1bd4cb4fb8ed4b137bcc21f3eb5e7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/34d733d6-c9a4-4248-8357-801efee8be91.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/34d733d6-c9a4-4248-8357-801efee8be91.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/34d733d6-c9a4-4248-8357-801efee8be91
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x80c58d25208546b40ea4bce4a67135247dd1bd4cb4fb8ed4b137bcc21f3eb5e7","name":"QUARTET NIGHT","registered_at":"2026-06-11T16:30:20Z","symbol":"NIM0069272","token_address":"0xa2c696f36573749088cfd79d3883f6a9102e1094","type":"artist","uuid":"34d733d6-c9a4-4248-8357-801efee8be91"}
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 0x80c58d25208546b40ea4bce4a67135247dd1bd4cb4fb8ed4b137bcc21f3eb5e7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34d733d6-c9a4-4248-8357-801efee8be91.json and https://artists.proofprofile.net/proofs/artist/34d733d6-c9a4-4248-8357-801efee8be91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x80c58d25208546b40ea4bce4a67135247dd1bd4cb4fb8ed4b137bcc21f3eb5e7","name":"QUARTET NIGHT","registered_at":"2026-06-11T16:30:20Z","symbol":"NIM0069272","token_address":"0xa2c696f36573749088cfd79d3883f6a9102e1094","type":"artist","uuid":"34d733d6-c9a4-4248-8357-801efee8be91"}
album: ポワゾンKISS
  type: MusicAlbum
  date published: 2013-06-26
album: エボリューション・イヴ
  type: MusicAlbum
  date published: 2015-06-24
album: Evolution Eve
  type: MusicAlbum
  date published: 2015-07-01
album: God's S.T.A.R.
  type: MusicAlbum
  date published: 2016-12-21
album: God's S.T.A.R.
  type: MusicAlbum
  date published: 2017-02-07
album: FLY TO THE FUTURE
  type: MusicAlbum
  date published: 2018-08-01
album: Fly to the Future
  type: MusicAlbum
  date published: 2018-08-01
album: FLY TO THE FUTURE
  type: MusicAlbum
  date published: 2018-08-03
album: TABOO NIGHT XXXX
  type: MusicAlbum
  date published: 2024-12-25
  track: TABOO NIGHT XXXX -instrumental-
    type: MusicRecording
    duration: PT4M14S
    duration ms: 254840
    explicit: false
    by artist: QUARTET NIGHT
    in album: TABOO NIGHT XXXX
      type: MusicAlbum
      date published: 2024-12-25
    genre: anime
    isrc code: JPKI02415442
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T21:54:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x13f91be235e576514c5320477a10eea69434541ddf26f3a6ab9dd3128140351e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958461
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958461
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKI02415442
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T23:18:11Z
    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 0x13f91be235e576514c5320477a10eea69434541ddf26f3a6ab9dd3128140351e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPKI02415442.
      date published: 2026-07-17T23:18:11Z
    audio: TABOO NIGHT XXXX -instrumental-
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 143.042
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.472
      additional property: Energy
        type: PropertyValue
        value: 0.875
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.847
      additional property: Liveness
        type: PropertyValue
        value: 0.294
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.631
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.487
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: JINN-Ω-RAY -instrumental-
    type: MusicRecording
    duration: PT4M23S
    duration ms: 263106
    explicit: false
    by artist: QUARTET NIGHT
    in album: TABOO NIGHT XXXX
      type: MusicAlbum
      date published: 2024-12-25
    genre: anime
    isrc code: JPKI02415443
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T21:33:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6cc80342e643098e2c3c8b221c08153a4489a5fb0584c2b8cf617ebc4d8c2efb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959063
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959063
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKI02415443
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T21:45:32Z
    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 0x6cc80342e643098e2c3c8b221c08153a4489a5fb0584c2b8cf617ebc4d8c2efb. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/JPKI02415443.
      date published: 2026-07-21T21:45:32Z
    audio: JINN-Ω-RAY -instrumental-
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 179.98
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: TABOO NIGHT XXXX (From "노래하는 왕자님")

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.345

Energy
type: PropertyValue
value: 0.704

Speechiness
type: PropertyValue
value: 0.065

Acousticness
type: PropertyValue
value: 0.001

Instrumentalness
type: PropertyValue
value: 0.826

Liveness
type: PropertyValue
value: 0.119

Valence (Positivity)
type: PropertyValue
value: 0.262

Loudness (dB)
type: PropertyValue
value: -8.6

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Minor

TABOO NIGHT XXXX (From "노래하는 왕자님")
type: MusicAlbum
date published: 2024-12-25