今陽子
type: MusicGroup
popularity: 2
followers: 27
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb2cabfee6e7e7fbaf90ebf93651c5f2af87d0da482069c3961d4de5986334ff4
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/78d00697-1bc5-4f20-97a6-f912eb0d70b5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/78d00697-1bc5-4f20-97a6-f912eb0d70b5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/78d00697-1bc5-4f20-97a6-f912eb0d70b5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb2cabfee6e7e7fbaf90ebf93651c5f2af87d0da482069c3961d4de5986334ff4","name":"今陽子","registered_at":"2026-06-17T07:45:23Z","symbol":"NIM1328083","token_address":"0xe95844398e24509a4b17deae797a0f607a24a65a","type":"artist","uuid":"78d00697-1bc5-4f20-97a6-f912eb0d70b5"}
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 0xb2cabfee6e7e7fbaf90ebf93651c5f2af87d0da482069c3961d4de5986334ff4. 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/78d00697-1bc5-4f20-97a6-f912eb0d70b5.json and https://artists.proofprofile.net/proofs/artist/78d00697-1bc5-4f20-97a6-f912eb0d70b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xb2cabfee6e7e7fbaf90ebf93651c5f2af87d0da482069c3961d4de5986334ff4","name":"今陽子","registered_at":"2026-06-17T07:45:23Z","symbol":"NIM1328083","token_address":"0xe95844398e24509a4b17deae797a0f607a24a65a","type":"artist","uuid":"78d00697-1bc5-4f20-97a6-f912eb0d70b5"}
album: ラヴ・ソング
  type: MusicAlbum
  date published: 1977-01-21
album: 決定版 今陽子とピンキーとキラーズ
  type: MusicAlbum
  date published: 2023-12-06
  track: 涙の季節
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209466
    explicit: false
    by artist: 今陽子
    in album: 決定版 今陽子とピンキーとキラーズ
      type: MusicAlbum
      date published: 2023-12-06
    isrc code: JPKI06840446
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T01:44:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8b849837f4e200afa3b059efe0e117b1b7db222ad5c497352aca2b887864b7c2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958480
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958480
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKI06840446
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T02:58:58Z
    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 0x8b849837f4e200afa3b059efe0e117b1b7db222ad5c497352aca2b887864b7c2. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPKI06840446.
      date published: 2026-07-18T02:58:58Z
    audio: 涙の季節
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.059
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.46
      additional property: Energy
        type: PropertyValue
        value: 0.483
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.523
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.547
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.417
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.254
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major