スズム
type: MusicGroup
genre: anime
genre: vocaloid
popularity: 17
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a83694be857b5c6a6c212361cf030569579fe4b4b388dcd40e7a3846ed4d8b0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953626
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953626
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/23f72980-42f2-4078-b1a2-bcf82e8aaefe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/23f72980-42f2-4078-b1a2-bcf82e8aaefe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/23f72980-42f2-4078-b1a2-bcf82e8aaefe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:41:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1a83694be857b5c6a6c212361cf030569579fe4b4b388dcd40e7a3846ed4d8b0","name":"スズム","registered_at":"2026-06-14T08:09:32Z","symbol":"NIM0391267","token_address":"0xf5c44041ec71151f3f7bd3b78441f087f01ae524","type":"artist","uuid":"23f72980-42f2-4078-b1a2-bcf82e8aaefe"}
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 0x1a83694be857b5c6a6c212361cf030569579fe4b4b388dcd40e7a3846ed4d8b0. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23f72980-42f2-4078-b1a2-bcf82e8aaefe.json and https://artists.proofprofile.net/proofs/artist/23f72980-42f2-4078-b1a2-bcf82e8aaefe.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0x1a83694be857b5c6a6c212361cf030569579fe4b4b388dcd40e7a3846ed4d8b0","name":"スズム","registered_at":"2026-06-14T08:09:32Z","symbol":"NIM0391267","token_address":"0xf5c44041ec71151f3f7bd3b78441f087f01ae524","type":"artist","uuid":"23f72980-42f2-4078-b1a2-bcf82e8aaefe"}
album: 絶望性:ヒーロー治療薬【通常盤】
  type: MusicAlbum
  date published: 2013-09-04
  track: 世界寿命と最後の一日
    type: MusicRecording
    duration: PT4M35S
    duration ms: 275880
    explicit: false
    by artist: スズム
    in album: 絶望性:ヒーロー治療薬【通常盤】
      type: MusicAlbum
      date published: 2013-09-04
    genre: anime
    genre: vocaloid
    isrc code: JPPI01300280
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T20:51:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa6220564db353003238188d63e73b6edaff3ab804509dc4da5024d13f3b0cef7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958063
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958063
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI01300280
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T21:07:34Z
    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 0xa6220564db353003238188d63e73b6edaff3ab804509dc4da5024d13f3b0cef7. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPPI01300280 — a six-check JSON result.
      date published: 2026-07-14T21:07:34Z
    audio: 世界寿命と最後の一日
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.982
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.573
      additional property: Energy
        type: PropertyValue
        value: 0.968
      additional property: Speechiness
        type: PropertyValue
        value: 0.062
      additional property: Acousticness
        type: PropertyValue
        value: 0.017
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.398
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.862
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.032
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 八日目､雨が止む前に｡
  type: MusicAlbum
  date published: 2015-02-04
  track: 世界寿命と最後の一日
    type: MusicRecording
    duration: PT4M37S
    duration ms: 277826
    explicit: false
    by artist: スズム
    in album: 八日目､雨が止む前に｡
      type: MusicAlbum
      date published: 2015-02-04
    genre: anime
    genre: vocaloid
    isrc code: JPPI01300282
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:11:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe0fe37ea60d54ee72b87b853cd413eacd94d59a349bde31b95295709ac1619d8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958771
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958771
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI01300282
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T19:27:18Z
    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 0xe0fe37ea60d54ee72b87b853cd413eacd94d59a349bde31b95295709ac1619d8. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/JPPI01300282 — a six-check JSON result.
      date published: 2026-07-19T19:27:18Z
    audio: 世界寿命と最後の一日
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.957
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.533
      additional property: Energy
        type: PropertyValue
        value: 0.949
      additional property: Speechiness
        type: PropertyValue
        value: 0.074
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Liveness
type: PropertyValue
value: 0.346

Valence (Positivity)
type: PropertyValue
value: 0.784

Loudness (dB)
type: PropertyValue
value: -3.644

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major