三島達矢
type: MusicGroup
popularity: 2
followers: 27
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc08b93ab111f63f1db33bc87b973d3cbf97a2267745f0defbca015a7dc7f25a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c655694-0c13-4267-bab5-65764d07b27a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c655694-0c13-4267-bab5-65764d07b27a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3c655694-0c13-4267-bab5-65764d07b27a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfc08b93ab111f63f1db33bc87b973d3cbf97a2267745f0defbca015a7dc7f25a","name":"三島達矢","registered_at":"2026-06-16T10:39:32Z","symbol":"NIM1026087","token_address":"0xa1f0083e438f82584917cede0cc2c6a456df6eee","type":"artist","uuid":"3c655694-0c13-4267-bab5-65764d07b27a"}
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 0xfc08b93ab111f63f1db33bc87b973d3cbf97a2267745f0defbca015a7dc7f25a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c655694-0c13-4267-bab5-65764d07b27a.json and https://artists.proofprofile.net/proofs/artist/3c655694-0c13-4267-bab5-65764d07b27a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xfc08b93ab111f63f1db33bc87b973d3cbf97a2267745f0defbca015a7dc7f25a","name":"三島達矢","registered_at":"2026-06-16T10:39:32Z","symbol":"NIM1026087","token_address":"0xa1f0083e438f82584917cede0cc2c6a456df6eee","type":"artist","uuid":"3c655694-0c13-4267-bab5-65764d07b27a"}
album: それでも俺は幸せさ
  type: MusicAlbum
  date published: 2025-06-18
  track: それでも俺は幸せさ
    type: MusicRecording
    duration: PT4M39S
    duration ms: 279762
    explicit: false
    by artist: 三島達矢
    in album: それでも俺は幸せさ
      type: MusicAlbum
      date published: 2025-06-18
    isrc code: JPN002500176
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T10:19:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6577823465587f8831fac82ffbe9b61746840c147189f104b4bd886a98063efc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958865
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958865
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPN002500176
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T13:21:15Z
    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 0x6577823465587f8831fac82ffbe9b61746840c147189f104b4bd886a98063efc. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:21:15Z), 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/JPN002500176.
      date published: 2026-07-20T13:21:15Z
    audio: それでも俺は幸せさ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.462
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.425
      additional property: Energy
        type: PropertyValue
        value: 0.65
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.039
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.397
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.613
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor