Ojisan to Komusume
type: MusicGroup
popularity: 6
followers: 164
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30da7615059512464720ac3b88644434da61a6be392af14b3d4e9486359017ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a4b731d-5d1c-45de-8b76-4ffba83f9813.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a4b731d-5d1c-45de-8b76-4ffba83f9813.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9a4b731d-5d1c-45de-8b76-4ffba83f9813
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30da7615059512464720ac3b88644434da61a6be392af14b3d4e9486359017ff","name":"Ojisan to Komusume","registered_at":"2026-06-17T19:31:23Z","symbol":"NIM1496451","token_address":"0x0d09cc059fff31d90b5297f4187e2114eee5a5f8","type":"artist","uuid":"9a4b731d-5d1c-45de-8b76-4ffba83f9813"}
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 0x30da7615059512464720ac3b88644434da61a6be392af14b3d4e9486359017ff. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a4b731d-5d1c-45de-8b76-4ffba83f9813.json and https://artists.proofprofile.net/proofs/artist/9a4b731d-5d1c-45de-8b76-4ffba83f9813.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x30da7615059512464720ac3b88644434da61a6be392af14b3d4e9486359017ff","name":"Ojisan to Komusume","registered_at":"2026-06-17T19:31:23Z","symbol":"NIM1496451","token_address":"0x0d09cc059fff31d90b5297f4187e2114eee5a5f8","type":"artist","uuid":"9a4b731d-5d1c-45de-8b76-4ffba83f9813"}
album: KOKEKEKE
  type: MusicAlbum
  date published: 2023-12-25
album: Rinrin
  type: MusicAlbum
  date published: 2024-03-05
album: Harukaze
  type: MusicAlbum
  date published: 2024-05-18
album: Senakanakase
  type: MusicAlbum
  date published: 2024-09-28
  track: Senakanakase
    type: MusicRecording
    duration: PT4M33S
    duration ms: 273754
    explicit: false
    by artist: Ojisan to Komusume
    in album: Senakanakase
      type: MusicAlbum
      date published: 2024-09-28
    isrc code: TCJPC2400499
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8e68448e3fa4301659e70884c688e05467dd1031fce983afed821fd1c50f019e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958461
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958461
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2400499
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T23:18:11Z
    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 0x8e68448e3fa4301659e70884c688e05467dd1031fce983afed821fd1c50f019e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCJPC2400499.
      date published: 2026-07-17T23:18:11Z
    audio: Senakanakase
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.981
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.722
      additional property: Energy
        type: PropertyValue
        value: 0.616
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.301
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.156
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.773
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.512
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Aoi Blue
  type: MusicAlbum
  date published: 2024-11-29
album: Will Be
  type: MusicAlbum
  date published: 2025-01-15
album: Tabiushi Ranger
  type: MusicAlbum
  date published: 2025-02-09
album: Itai
  type: MusicAlbum
  date published: 2025-03-15
album: NEBOTTA
  type: MusicAlbum
  date published: 2025-03-28
album: BOKU NO KANOJO WA YOUSYA NAI
  type: MusicAlbum
  date published: 2025-09-20