桐嶋夏也 (CV.野島健児)
type: MusicGroup
genre: anime
popularity: 5
followers: 860
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13599f5e05834e1e2dbdd4b4b04825f4644a05e17d7f4c654a344ac5e86be875
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/36af6afd-f06c-40e7-a1b1-9e07f06dd82d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/36af6afd-f06c-40e7-a1b1-9e07f06dd82d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/36af6afd-f06c-40e7-a1b1-9e07f06dd82d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x13599f5e05834e1e2dbdd4b4b04825f4644a05e17d7f4c654a344ac5e86be875","name":"桐嶋夏也 (CV.野島健児)","registered_at":"2026-06-16T08:35:15Z","symbol":"NIM0996431","token_address":"0xf5bb7edede8b481cefe57c4da68b0ae8f5f77be6","type":"artist","uuid":"36af6afd-f06c-40e7-a1b1-9e07f06dd82d"}
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 0x13599f5e05834e1e2dbdd4b4b04825f4644a05e17d7f4c654a344ac5e86be875. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36af6afd-f06c-40e7-a1b1-9e07f06dd82d.json and https://artists.proofprofile.net/proofs/artist/36af6afd-f06c-40e7-a1b1-9e07f06dd82d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:38:33Z
  text: {"copyright_id":"0x13599f5e05834e1e2dbdd4b4b04825f4644a05e17d7f4c654a344ac5e86be875","name":"桐嶋夏也 (CV.野島健児)","registered_at":"2026-06-16T08:35:15Z","symbol":"NIM0996431","token_address":"0xf5bb7edede8b481cefe57c4da68b0ae8f5f77be6","type":"artist","uuid":"36af6afd-f06c-40e7-a1b1-9e07f06dd82d"}
album: 『劇場版 Free!-the Final Stroke-』キャラクターソングシングル Vol.6 桐嶋夏也 (CV.野島健児)＆芹沢 尚 (CV.日野 聡)
  type: MusicAlbum
  date published: 2022-07-27
  track: Don't lose ourselves!!
    type: MusicRecording
    duration: PT3M48S
    duration ms: 228048
    explicit: false
    by artist: 桐嶋夏也 (CV.野島健児)
    in album: 『劇場版 Free!-the Final Stroke-』キャラクターソングシングル Vol.6 桐嶋夏也 (CV.野島健児)＆芹沢 尚 (CV.日野 聡)
      type: MusicAlbum
      date published: 2022-07-27
    genre: anime
    isrc code: JPI102201844
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T09:47:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5306c20dfdfc5267e8555ab01e93be62181656482d6552b34554b9bb748c41bb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958716
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958716
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102201844
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T10:15:55Z
    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 0x5306c20dfdfc5267e8555ab01e93be62181656482d6552b34554b9bb748c41bb. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPI102201844.
      date published: 2026-07-19T10:15:55Z
    audio: Don't lose ourselves!!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.992
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.649
      additional property: Energy
        type: PropertyValue
        value: 0.862
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.04
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.384
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.544
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.963
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 『劇場版 Free!-the Final Stroke-』キャラクターソングシングル Vol.6 桐嶋夏也 (CV.野島健児)＆芹沢 尚 (CV.日野 聡)
  type: MusicAlbum
  date published: 2022-07-27