Shōtaka 少鷹
type: MusicGroup
popularity: 3
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a51102fd90411530853d642f7625de72d6680e6e24dc940122598574495914d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4106e1c-4331-43bd-86b4-2b45963ac537.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4106e1c-4331-43bd-86b4-2b45963ac537.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d4106e1c-4331-43bd-86b4-2b45963ac537
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8a51102fd90411530853d642f7625de72d6680e6e24dc940122598574495914d","name":"Shōtaka 少鷹","registered_at":"2026-06-21T02:09:17Z","symbol":"NIM1786267","token_address":"0x4c24fac8c4bfa324aecc4a26268a973b4c56c4b5","type":"artist","uuid":"d4106e1c-4331-43bd-86b4-2b45963ac537"}
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 0x8a51102fd90411530853d642f7625de72d6680e6e24dc940122598574495914d. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4106e1c-4331-43bd-86b4-2b45963ac537.json and https://artists.proofprofile.net/proofs/artist/d4106e1c-4331-43bd-86b4-2b45963ac537.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x8a51102fd90411530853d642f7625de72d6680e6e24dc940122598574495914d","name":"Shōtaka 少鷹","registered_at":"2026-06-21T02:09:17Z","symbol":"NIM1786267","token_address":"0x4c24fac8c4bfa324aecc4a26268a973b4c56c4b5","type":"artist","uuid":"d4106e1c-4331-43bd-86b4-2b45963ac537"}
album: 永遠の君へ
  type: MusicAlbum
  date published: 2025-02-01
  track: 永遠の君へ
    type: MusicRecording
    duration: PT3M44S
    duration ms: 224319
    explicit: false
    by artist: Shōtaka 少鷹
    in album: 永遠の君へ
      type: MusicAlbum
      date published: 2025-02-01
    isrc code: QZFYY2507778
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T07:15:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc70f22e48271792c6e53449b5abe7f91eaa22216050d4148c0d08024e7b68141
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2507778
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0xc70f22e48271792c6e53449b5abe7f91eaa22216050d4148c0d08024e7b68141. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFYY2507778.
      date published: 2026-07-04T10:04:33Z
    audio: 永遠の君へ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 88.671
      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: 0.473
      additional property: Energy
        type: PropertyValue
        value: 0.438
      additional property: Speechiness
        type: PropertyValue
        value: 0.055
      additional property: Acousticness
        type: PropertyValue
        value: 0.186
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.227
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.233
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.618
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 約束の星
  type: MusicAlbum
  date published: 2025-02-14
album: 春の再誕
  type: MusicAlbum
  date published: 2025-04-01
album: ゴールデンドリームス
  type: MusicAlbum
  date published: 2025-05-01