Look
type: MusicGroup
genre: j-pop
genre: kayokyoku
popularity: 26
followers: 275
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42a0386c57415c0c46dce9d40120cad362a1a4a16ccf382debad8b0bae99b0a7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/101d74a9-b092-48e6-ba90-b30a163d9ae3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/101d74a9-b092-48e6-ba90-b30a163d9ae3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/101d74a9-b092-48e6-ba90-b30a163d9ae3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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 0x42a0386c57415c0c46dce9d40120cad362a1a4a16ccf382debad8b0bae99b0a7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/101d74a9-b092-48e6-ba90-b30a163d9ae3.json and https://artists.proofprofile.net/proofs/artist/101d74a9-b092-48e6-ba90-b30a163d9ae3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
album: GOLDEN J-POP/THE BEST ルック
  type: MusicAlbum
  date published: 1997
  track: 追憶の少年
    type: MusicRecording
    duration: PT4M46S
    duration ms: 286173
    explicit: false
    by artist: Look
    in album: GOLDEN J-POP/THE BEST ルック
      type: MusicAlbum
      date published: 1997
    genre: j-pop
    genre: kayokyoku
    isrc code: JPES08604590
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T21:15:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0c2014c5b760ccb7379bca042e5ccb380cdf38706365626cc81836c0afbdf9b0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958067
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958067
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPES08604590
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T21:26:15Z
    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 0x0c2014c5b760ccb7379bca042e5ccb380cdf38706365626cc81836c0afbdf9b0. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/JPES08604590.
      date published: 2026-07-14T21:26:15Z
    audio: 追憶の少年
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 71.971
      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: 0.515
      additional property: Energy
        type: PropertyValue
        value: 0.476
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.408
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.202
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.234
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.355
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: ボーイズ・ビー・ドリーミン
  type: MusicAlbum
  date published: 2013-05-15
album: OVER-LOOK
  type: MusicAlbum
  date published: 2013-12-04
album: WINGS
  type: MusicAlbum
  date published: 2013-12-04
album: LOOKIN' WONDERLAND
  type: MusicAlbum
  date published: 2013-12-04
album: シャイニン・オン 君が哀しい / 少年の瞳 BESTタッグ
  type: MusicAlbum
  date published: 2022-03-09
album: Time that doesn't stop
  type: MusicAlbum
  date published: 2022-07-11
album: Time that doesn't stop
  type: MusicAlbum
  date published: 2022-07-11