松本ちえこ
type: MusicGroup
genre: city pop
genre: kayokyoku
popularity: 5
followers: 484
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xde6ff79067f7659e76467a105624d1547cddde2bf767ac52b7b7cdb814e128b4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5e2bc214-5d05-403d-9dda-4c1d0a02063f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5e2bc214-5d05-403d-9dda-4c1d0a02063f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5e2bc214-5d05-403d-9dda-4c1d0a02063f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xde6ff79067f7659e76467a105624d1547cddde2bf767ac52b7b7cdb814e128b4","name":"松本ちえこ","registered_at":"2026-06-16T22:26:33Z","symbol":"NIM1194773","token_address":"0xd60ae05092157e812439bc51bc4aab40aee42490","type":"artist","uuid":"5e2bc214-5d05-403d-9dda-4c1d0a02063f"}
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6ff79067f7659e76467a105624d1547cddde2bf767ac52b7b7cdb814e128b4. 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/5e2bc214-5d05-403d-9dda-4c1d0a02063f.json and https://artists.proofprofile.net/proofs/artist/5e2bc214-5d05-403d-9dda-4c1d0a02063f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xde6ff79067f7659e76467a105624d1547cddde2bf767ac52b7b7cdb814e128b4","name":"松本ちえこ","registered_at":"2026-06-16T22:26:33Z","symbol":"NIM1194773","token_address":"0xd60ae05092157e812439bc51bc4aab40aee42490","type":"artist","uuid":"5e2bc214-5d05-403d-9dda-4c1d0a02063f"}
album: ちえこのViva Animals!!
  type: MusicAlbum
  date published: 1976-07-25
  track: 恋人試験
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194028
    explicit: false
    by artist: 松本ちえこ
    in album: ちえこのViva Animals!!
      type: MusicAlbum
      date published: 1976-07-25
    genre: city pop
    genre: kayokyoku
    isrc code: JPPC07601750
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T05:23:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x820e2b788ed1aaa56ff371d6ba37953c5ae043edbdfa27065fd6439db5a4f43b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958832
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958832
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC07601750
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T05:43:55Z
    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 0x820e2b788ed1aaa56ff371d6ba37953c5ae043edbdfa27065fd6439db5a4f43b. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/JPPC07601750.
      date published: 2026-07-20T05:43:55Z
    audio: 恋人試験
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 86.738
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.625
      additional property: Energy
        type: PropertyValue
        value: 0.545
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.669
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.233
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.505
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.737
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: ちえこのハロー・ウインター
  type: MusicAlbum
  date published: 1976-12-10
album: ハイ!授業中
  type: MusicAlbum
  date published: 1977-04-25
album: ハーイ!ともだち
  type: MusicAlbum
  date published: 1977-08-25
album: 感覚都市
  type: MusicAlbum
  date published: 1978-06-25
album: ワンダー・キャラバン
  type: MusicAlbum
  date published: 1978-10-21
album: 松本ちえこ BEST+
  type: MusicAlbum
  date published: 2022-09-21