松田昇大
type: MusicGroup
popularity: 10
followers: 296
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5dc602b3def23082d06b7032b4503ec468b400ac4d12cba172812d5552260e9d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93152c63-d18e-4682-a19d-a81dc936a84b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93152c63-d18e-4682-a19d-a81dc936a84b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/93152c63-d18e-4682-a19d-a81dc936a84b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5dc602b3def23082d06b7032b4503ec468b400ac4d12cba172812d5552260e9d","name":"松田昇大","registered_at":"2026-06-17T17:01:13Z","symbol":"NIM1460602","token_address":"0x413b5674937e8ed822c14f6f2d33f8ea12e46e85","type":"artist","uuid":"93152c63-d18e-4682-a19d-a81dc936a84b"}
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 0x5dc602b3def23082d06b7032b4503ec468b400ac4d12cba172812d5552260e9d. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93152c63-d18e-4682-a19d-a81dc936a84b.json and https://artists.proofprofile.net/proofs/artist/93152c63-d18e-4682-a19d-a81dc936a84b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x5dc602b3def23082d06b7032b4503ec468b400ac4d12cba172812d5552260e9d","name":"松田昇大","registered_at":"2026-06-17T17:01:13Z","symbol":"NIM1460602","token_address":"0x413b5674937e8ed822c14f6f2d33f8ea12e46e85","type":"artist","uuid":"93152c63-d18e-4682-a19d-a81dc936a84b"}
album: Piece of life
  type: MusicAlbum
  date published: 2022-02-23
album: Picture Frame
  type: MusicAlbum
  date published: 2022-12-21
album: Masquerade
  type: MusicAlbum
  date published: 2023-06-25
album: iris
  type: MusicAlbum
  date published: 2023-08-22
album: Kaleidoscopic
  type: MusicAlbum
  date published: 2023-10-28
album: RGB
  type: MusicAlbum
  date published: 2024-02-28
album: 雪月風花
  type: MusicAlbum
  date published: 2025-03-03
  track: Live in the moment
    type: MusicRecording
    duration: PT4M3S
    duration ms: 243000
    explicit: false
    by artist: 松田昇大
    in album: 雪月風花
      type: MusicAlbum
      date published: 2025-03-03
    isrc code: TCJPE2505947
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T20:11:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x29a7ea4188de3f278a29b424e46fa5c6c9f69c6262e7066555a323e971d1517a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958931
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958931
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPE2505947
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:15:01Z
    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 0x29a7ea4188de3f278a29b424e46fa5c6c9f69c6262e7066555a323e971d1517a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCJPE2505947.
      date published: 2026-07-20T21:15:01Z
    audio: Live in the moment
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.022
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.688
      additional property: Energy
        type: PropertyValue
        value: 0.893
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.004
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.36
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.886
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.388
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor