シヴァネコ
type: MusicGroup
genre: japanese indie
popularity: 6
followers: 1532
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46b939aee6a1972436ab5415c00d216c561ea7a85fea3f57e46d85fdbe886838
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2935a717-e974-4214-bd60-90466286dd67.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2935a717-e974-4214-bd60-90466286dd67.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2935a717-e974-4214-bd60-90466286dd67
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x46b939aee6a1972436ab5415c00d216c561ea7a85fea3f57e46d85fdbe886838","name":"シヴァネコ","registered_at":"2026-06-16T03:53:25Z","symbol":"NIM0929116","token_address":"0x4d9e5e2677785c48e4a187070634666e2475b026","type":"artist","uuid":"2935a717-e974-4214-bd60-90466286dd67"}
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 0x46b939aee6a1972436ab5415c00d216c561ea7a85fea3f57e46d85fdbe886838. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2935a717-e974-4214-bd60-90466286dd67.json and https://artists.proofprofile.net/proofs/artist/2935a717-e974-4214-bd60-90466286dd67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x46b939aee6a1972436ab5415c00d216c561ea7a85fea3f57e46d85fdbe886838","name":"シヴァネコ","registered_at":"2026-06-16T03:53:25Z","symbol":"NIM0929116","token_address":"0x4d9e5e2677785c48e4a187070634666e2475b026","type":"artist","uuid":"2935a717-e974-4214-bd60-90466286dd67"}
album: Knife/WALKMAN
  type: MusicAlbum
  date published: 2021-03-03
album: オレンジ足跡
  type: MusicAlbum
  date published: 2022-04-01
  track: オレンジ足跡
    type: MusicRecording
    duration: PT3M55S
    duration ms: 235370
    explicit: false
    by artist: シヴァネコ
    in album: オレンジ足跡
      type: MusicAlbum
      date published: 2022-04-01
    genre: japanese indie
    isrc code: JPG102200347
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T00:25:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6ce899ef38e4a3519b5518e13bd183a6261be75ec2d854eaf12ca80e66b54996
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958800
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958800
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG102200347
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T00:52:19Z
    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 0x6ce899ef38e4a3519b5518e13bd183a6261be75ec2d854eaf12ca80e66b54996. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/JPG102200347.
      date published: 2026-07-20T00:52:19Z
    audio: オレンジ足跡
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.084
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.586
      additional property: Energy
        type: PropertyValue
        value: 0.558
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.205
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.128
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.377
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.828
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: ひねもす
  type: MusicAlbum
  date published: 2022-12-07
album: エンドロール
  type: MusicAlbum
  date published: 2024-05-15