門脇更紗 × Sean Oshima
type: MusicGroup
popularity: 4
followers: 59
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64b28f41100203adffe0d1a746548499d3e0de58a67af53c10ac89d37dd2d5a6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1511c0d0-fb9d-4d41-ae58-0000a712e9f2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1511c0d0-fb9d-4d41-ae58-0000a712e9f2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1511c0d0-fb9d-4d41-ae58-0000a712e9f2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x64b28f41100203adffe0d1a746548499d3e0de58a67af53c10ac89d37dd2d5a6","name":"門脇更紗 × Sean Oshima","registered_at":"2026-06-15T20:57:31Z","symbol":"NIM0829823","token_address":"0xf936d05db96e4df82fd0db3e7b5a5a00def88904","type":"artist","uuid":"1511c0d0-fb9d-4d41-ae58-0000a712e9f2"}
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b28f41100203adffe0d1a746548499d3e0de58a67af53c10ac89d37dd2d5a6. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1511c0d0-fb9d-4d41-ae58-0000a712e9f2.json and https://artists.proofprofile.net/proofs/artist/1511c0d0-fb9d-4d41-ae58-0000a712e9f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:05:05Z
  text: {"copyright_id":"0x64b28f41100203adffe0d1a746548499d3e0de58a67af53c10ac89d37dd2d5a6","name":"門脇更紗 × Sean Oshima","registered_at":"2026-06-15T20:57:31Z","symbol":"NIM0829823","token_address":"0xf936d05db96e4df82fd0db3e7b5a5a00def88904","type":"artist","uuid":"1511c0d0-fb9d-4d41-ae58-0000a712e9f2"}
album: Ai Moyashite Bokura wa Yuku - The Happiest Melody -
  type: MusicAlbum
  date published: 2024-03-06
album: 愛燃やして僕らはゆく - The Happiest Melody -
  type: MusicAlbum
  date published: 2024-03-06
  track: 愛燃やして僕らはゆく - The Happiest Melody -
    type: MusicRecording
    duration: PT3M52S
    duration ms: 232461
    explicit: false
    by artist: 門脇更紗 × Sean Oshima
    in album: 愛燃やして僕らはゆく - The Happiest Melody -
      type: MusicAlbum
      date published: 2024-03-06
    isrc code: JPVI02400402
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T01:31:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe803591a521653d14d74a176ac41bb20b479426e3b206960eefba56f6864df07
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI02400402
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0xe803591a521653d14d74a176ac41bb20b479426e3b206960eefba56f6864df07. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPVI02400402.
      date published: 2026-07-04T10:04:33Z
    audio: 愛燃やして僕らはゆく - The Happiest Melody -
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.044
      additional property: Musical Key
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      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.737
      additional property: Energy
        type: PropertyValue
        value: 0.736
      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
        value: 0.47
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.08
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.835
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.23
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major