馬渕太成
type: MusicGroup
genre: j-rock
popularity: 8
followers: 163
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c711dda4cb2a57a185254099ac6da4f1663f6ededef25eeeb60d1363a55363b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cd91db47-fbd9-4d80-ac3c-3f910843b0fc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cd91db47-fbd9-4d80-ac3c-3f910843b0fc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cd91db47-fbd9-4d80-ac3c-3f910843b0fc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7c711dda4cb2a57a185254099ac6da4f1663f6ededef25eeeb60d1363a55363b","name":"馬渕太成","registered_at":"2026-06-20T23:52:03Z","symbol":"NIM1752945","token_address":"0xc85f8fb5633ad6d277dc8c39c0e92a70c79201fb","type":"artist","uuid":"cd91db47-fbd9-4d80-ac3c-3f910843b0fc"}
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 0x7c711dda4cb2a57a185254099ac6da4f1663f6ededef25eeeb60d1363a55363b. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd91db47-fbd9-4d80-ac3c-3f910843b0fc.json and https://artists.proofprofile.net/proofs/artist/cd91db47-fbd9-4d80-ac3c-3f910843b0fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x7c711dda4cb2a57a185254099ac6da4f1663f6ededef25eeeb60d1363a55363b","name":"馬渕太成","registered_at":"2026-06-20T23:52:03Z","symbol":"NIM1752945","token_address":"0xc85f8fb5633ad6d277dc8c39c0e92a70c79201fb","type":"artist","uuid":"cd91db47-fbd9-4d80-ac3c-3f910843b0fc"}
album: あふれ出す涙
  type: MusicAlbum
  date published: 2025-01-15
album: 新光 -SHINKOU-
  type: MusicAlbum
  date published: 2025-03-05
  track: 流星、飛んでゆけ！
    type: MusicRecording
    duration: PT4M49S
    duration ms: 289742
    explicit: false
    by artist: 馬渕太成
    in album: 新光 -SHINKOU-
      type: MusicAlbum
      date published: 2025-03-05
    genre: j-rock
    isrc code: JPPO02500413
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T02:45:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2ebaa29f7ca2ebabdd413bdc2743181298626ce716969388a4bb83b1ef0cb16e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959096
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959096
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02500413
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T03:48:36Z
    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 0x2ebaa29f7ca2ebabdd413bdc2743181298626ce716969388a4bb83b1ef0cb16e. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/JPPO02500413.
      date published: 2026-07-22T03:48:36Z
    audio: 流星、飛んでゆけ！
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.005
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.428
      additional property: Energy
        type: PropertyValue
        value: 0.985
      additional property: Speechiness
        type: PropertyValue
        value: 0.074
      additional property: Acousticness
        type: PropertyValue
        value: 0.003
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.379
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.44
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.289
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major