桐生つかさ (CV: 河瀬茉希)
type: MusicGroup
popularity: 15
followers: 270
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb1b77c921249b1fd68d328afafb5d2cc5307982615f3ef631356db7d565b7567
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953727
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953727
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8f91813b-fa91-40e4-9436-f6fe7d5c88f5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8f91813b-fa91-40e4-9436-f6fe7d5c88f5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8f91813b-fa91-40e4-9436-f6fe7d5c88f5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T02:33:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb1b77c921249b1fd68d328afafb5d2cc5307982615f3ef631356db7d565b7567","name":"桐生つかさ (CV: 河瀬茉希)","registered_at":"2026-06-14T19:35:26Z","symbol":"NIM0554863","token_address":"0xd223bd1a7512b962ca723e4317d43da2436050c5","type":"artist","uuid":"8f91813b-fa91-40e4-9436-f6fe7d5c88f5"}
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 0xb1b77c921249b1fd68d328afafb5d2cc5307982615f3ef631356db7d565b7567. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f91813b-fa91-40e4-9436-f6fe7d5c88f5.json and https://artists.proofprofile.net/proofs/artist/8f91813b-fa91-40e4-9436-f6fe7d5c88f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T02:33:01Z
  text: {"copyright_id":"0xb1b77c921249b1fd68d328afafb5d2cc5307982615f3ef631356db7d565b7567","name":"桐生つかさ (CV: 河瀬茉希)","registered_at":"2026-06-14T19:35:26Z","symbol":"NIM0554863","token_address":"0xd223bd1a7512b962ca723e4317d43da2436050c5","type":"artist","uuid":"8f91813b-fa91-40e4-9436-f6fe7d5c88f5"}
album: アタシガルール (GAME VERSION)
  type: MusicAlbum
  date published: 2023-06-28
  track: アタシガルール - GAME VERSION
    type: MusicRecording
    duration: PT2M11S
    duration ms: 131809
    explicit: false
    by artist: 桐生つかさ (CV: 河瀬茉希)
    in album: アタシガルール (GAME VERSION)
      type: MusicAlbum
      date published: 2023-06-28
    isrc code: JPCO02307930
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T07:32:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x59ac80ee0d712a1eb7e33b5165b7884e9de8cb7198b7249b9419763f102ec1a1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO02307930
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x59ac80ee0d712a1eb7e33b5165b7884e9de8cb7198b7249b9419763f102ec1a1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPCO02307930.
      date published: 2026-07-05T10:01:46Z
    audio: アタシガルール - GAME VERSION
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 155.092
      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: 0.604
      additional property: Energy
        type: PropertyValue
        value: 0.936
      additional property: Speechiness
        type: PropertyValue
        value: 0.065
      additional property: Acousticness
        type: PropertyValue
        value: 0.023
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.183
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.726
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.348
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Night Time Wander (GAME VERSION)
  type: MusicAlbum
  date published: 2023-07-20
  track: Night Time Wander - GAME VERSION
    type: MusicRecording
    duration: PT2M15S
    duration ms: 135271
    explicit: false
    by artist: 桐生つかさ (CV: 河瀬茉希)
    in album: Night Time Wander (GAME VERSION)
      type: MusicAlbum
      date published: 2023-07-20
    isrc code: JPCO02321540
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x72668d821dd8095327a2982709aa84d775b714eb31459afd62d8f84a3c248298
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959061
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959061
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO02321540
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T21:34:21Z
    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 0x72668d821dd8095327a2982709aa84d775b714eb31459afd62d8f84a3c248298. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/JPCO02321540.
      date published: 2026-07-21T21:34:21Z
    audio: Night Time Wander - GAME VERSION
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 167.925
      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: 0.7
      additional property: Energy
        type: PropertyValue
        value: 0.83
      additional property: Speechiness
        type: PropertyValue
        value: 0.101
      additional property: Acousticness
        type: PropertyValue
        value: 0.067
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.891
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Loudness (dB)
type: PropertyValue
value: -4.411

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Major