戸倉家の姫たち
type: MusicGroup
popularity: 3
followers: 8
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22847757e8bed81a5c23e126f1d333a479c165f4682e37e6cf45e3b101221283
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e3b47283-f1ff-44a3-8dc5-5172bf70072d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e3b47283-f1ff-44a3-8dc5-5172bf70072d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e3b47283-f1ff-44a3-8dc5-5172bf70072d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x22847757e8bed81a5c23e126f1d333a479c165f4682e37e6cf45e3b101221283","name":"戸倉家の姫たち","registered_at":"2026-06-21T07:46:48Z","symbol":"NIM1865400","token_address":"0x2cb8d7633ed3cc6b90420d564395fb921cd8b3d1","type":"artist","uuid":"e3b47283-f1ff-44a3-8dc5-5172bf70072d"}
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 0x22847757e8bed81a5c23e126f1d333a479c165f4682e37e6cf45e3b101221283. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3b47283-f1ff-44a3-8dc5-5172bf70072d.json and https://artists.proofprofile.net/proofs/artist/e3b47283-f1ff-44a3-8dc5-5172bf70072d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x22847757e8bed81a5c23e126f1d333a479c165f4682e37e6cf45e3b101221283","name":"戸倉家の姫たち","registered_at":"2026-06-21T07:46:48Z","symbol":"NIM1865400","token_address":"0x2cb8d7633ed3cc6b90420d564395fb921cd8b3d1","type":"artist","uuid":"e3b47283-f1ff-44a3-8dc5-5172bf70072d"}
album: ヒャクニチソウ
  type: MusicAlbum
  date published: 2025-09-04
  track: ヒャクニチソウ
    type: MusicRecording
    duration: PT4M9S
    duration ms: 249080
    explicit: false
    by artist: 戸倉家の姫たち
    in album: ヒャクニチソウ
      type: MusicAlbum
      date published: 2025-09-04
    isrc code: JPPC02512313
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T13:44:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8754fd79b956ad9b215c4e440991b1163a3fe607da0e91ec3c44a14cab110194
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958905
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958905
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC02512313
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T16:46:42Z
    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 0x8754fd79b956ad9b215c4e440991b1163a3fe607da0e91ec3c44a14cab110194. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:46:42Z), 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/JPPC02512313.
      date published: 2026-07-20T16:46:42Z
    audio: ヒャクニチソウ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 177.938
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.436
      additional property: Energy
        type: PropertyValue
        value: 0.929
      additional property: Speechiness
        type: PropertyValue
        value: 0.072
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.193
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.656
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.282
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Hyakunichisou
  type: MusicAlbum
  date published: 2025-09-04