南春香(CV:佐藤利奈)
type: MusicGroup
genre: anime
popularity: 17
followers: 544
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc514048e955024512e3241c82e4bd93c169b7b71c9e681886eb44da156982667
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953633
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953633
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/341d1f92-7829-4ce7-b5a3-8c9c03a7da13.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/341d1f92-7829-4ce7-b5a3-8c9c03a7da13.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/341d1f92-7829-4ce7-b5a3-8c9c03a7da13
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T12:47:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc514048e955024512e3241c82e4bd93c169b7b71c9e681886eb44da156982667","name":"南春香(CV:佐藤利奈)","registered_at":"2026-06-14T10:00:30Z","symbol":"NIM0417720","token_address":"0xfc835c4c85eb7a960a9db76d16a095e211f78c54","type":"artist","uuid":"341d1f92-7829-4ce7-b5a3-8c9c03a7da13"}
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 0xc514048e955024512e3241c82e4bd93c169b7b71c9e681886eb44da156982667. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/341d1f92-7829-4ce7-b5a3-8c9c03a7da13.json and https://artists.proofprofile.net/proofs/artist/341d1f92-7829-4ce7-b5a3-8c9c03a7da13.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T12:47:11Z
  text: {"copyright_id":"0xc514048e955024512e3241c82e4bd93c169b7b71c9e681886eb44da156982667","name":"南春香(CV:佐藤利奈)","registered_at":"2026-06-14T10:00:30Z","symbol":"NIM0417720","token_address":"0xfc835c4c85eb7a960a9db76d16a095e211f78c54","type":"artist","uuid":"341d1f92-7829-4ce7-b5a3-8c9c03a7da13"}
album: 春夏秋登場!!
  type: MusicAlbum
  date published: 2008-12-17
album: シアワセ☆ハイテンション↑↑
  type: MusicAlbum
  date published: 2013-01-23
album: 急接近ラッキーDAYS
  type: MusicAlbum
  date published: 2013-01-23
  track: 急接近ラッキーDAYS
    type: MusicRecording
    duration: PT3M46S
    duration ms: 226920
    explicit: false
    by artist: 南春香(CV:佐藤利奈)
    in album: 急接近ラッキーDAYS
      type: MusicAlbum
      date published: 2013-01-23
    genre: anime
    isrc code: JPKI01218076
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T22:02:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x487273ea65aa1eced65186a57899ceae1b12138ea4bdb0c1e67ce2912b24fa76
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959071
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959071
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKI01218076
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T22:56:27Z
    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 0x487273ea65aa1eced65186a57899ceae1b12138ea4bdb0c1e67ce2912b24fa76. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-21T22:56:27Z), 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/JPKI01218076.
      date published: 2026-07-21T22:56:27Z
    audio: 急接近ラッキーDAYS
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 167.978
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.542
      additional property: Energy
        type: PropertyValue
        value: 0.9
      additional property: Speechiness
        type: PropertyValue
        value: 0.078
      additional property: Acousticness
        type: PropertyValue
        value: 0.068
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.344
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.829
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.575
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: シアワセ☆ハイテンション↑↑
  type: MusicAlbum
  date published: 2013-01-23
album: Minamike Tadaima (Original Soundtrack) (Soundtrack)
  type: MusicAlbum
  date published: 2025-10-31