井内澄子
type: MusicGroup
popularity: 6
followers: 113
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30bd08472f3ae8ab45d62f12294fd6ba4bbaf3cb3c0fd47e5fefdfadc0eb9cac
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/d060b0a3-6a39-4ca3-9a3a-231a26bd5595.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d060b0a3-6a39-4ca3-9a3a-231a26bd5595.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d060b0a3-6a39-4ca3-9a3a-231a26bd5595
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30bd08472f3ae8ab45d62f12294fd6ba4bbaf3cb3c0fd47e5fefdfadc0eb9cac","name":"井内澄子","registered_at":"2026-06-21T00:50:45Z","symbol":"NIM1767109","token_address":"0x836a018449fcaf87ddca110a401f190535c753ca","type":"artist","uuid":"d060b0a3-6a39-4ca3-9a3a-231a26bd5595"}
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 0x30bd08472f3ae8ab45d62f12294fd6ba4bbaf3cb3c0fd47e5fefdfadc0eb9cac. 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/d060b0a3-6a39-4ca3-9a3a-231a26bd5595.json and https://artists.proofprofile.net/proofs/artist/d060b0a3-6a39-4ca3-9a3a-231a26bd5595.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x30bd08472f3ae8ab45d62f12294fd6ba4bbaf3cb3c0fd47e5fefdfadc0eb9cac","name":"井内澄子","registered_at":"2026-06-21T00:50:45Z","symbol":"NIM1767109","token_address":"0x836a018449fcaf87ddca110a401f190535c753ca","type":"artist","uuid":"d060b0a3-6a39-4ca3-9a3a-231a26bd5595"}
album: 湯山 昭 ピアノ曲集 お菓子の世界
  type: MusicAlbum
  date published: 1994-04-06
  track: シュー・クリーム
    type: MusicRecording
    duration: PT1M37S
    duration ms: 97430
    explicit: false
    by artist: 井内澄子
    in album: 湯山 昭 ピアノ曲集 お菓子の世界
      type: MusicAlbum
      date published: 1994-04-06
    isrc code: JPVI07404090
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T04:56:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xffb78e4f1433b296abec6c2ce5462264e27d521b55508ba74e44be8eb77e2afa
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI07404090
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0xffb78e4f1433b296abec6c2ce5462264e27d521b55508ba74e44be8eb77e2afa. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPVI07404090.
      date published: 2026-07-06T06:56:49Z
    audio: シュー・クリーム
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.943
      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: 0.356
      additional property: Energy
        type: PropertyValue
        value: 0.07
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.995
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.836
      additional property: Liveness
        type: PropertyValue
        value: 0.117
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.106
      additional property: Loudness (dB)
        type: PropertyValue
        value: -22.722
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major