ヒナタミユ
type: MusicGroup
popularity: 2
followers: 34
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x86b9e52bfec1b749d3047f72cabb33bf1f2e64d0c157859db6c4b6b2f82ea79a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a7db4fe-0799-484c-a588-8086327b6b60.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a7db4fe-0799-484c-a588-8086327b6b60.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1a7db4fe-0799-484c-a588-8086327b6b60
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:28:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x86b9e52bfec1b749d3047f72cabb33bf1f2e64d0c157859db6c4b6b2f82ea79a","name":"ヒナタミユ","registered_at":"2026-06-15T22:40:47Z","symbol":"NIM0854452","token_address":"0x3df2c878607e549cd49b8ce6731b0ffc4131da9b","type":"artist","uuid":"1a7db4fe-0799-484c-a588-8086327b6b60"}
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 0x86b9e52bfec1b749d3047f72cabb33bf1f2e64d0c157859db6c4b6b2f82ea79a. 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/1a7db4fe-0799-484c-a588-8086327b6b60.json and https://artists.proofprofile.net/proofs/artist/1a7db4fe-0799-484c-a588-8086327b6b60.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x86b9e52bfec1b749d3047f72cabb33bf1f2e64d0c157859db6c4b6b2f82ea79a","name":"ヒナタミユ","registered_at":"2026-06-15T22:40:47Z","symbol":"NIM0854452","token_address":"0x3df2c878607e549cd49b8ce6731b0ffc4131da9b","type":"artist","uuid":"1a7db4fe-0799-484c-a588-8086327b6b60"}
album: KOSHIEN FOREVER
  type: MusicAlbum
  date published: 2024-01-01
  track: KOSHIEN FOREVER
    type: MusicRecording
    duration: PT1M57S
    duration ms: 117013
    explicit: false
    by artist: ヒナタミユ
    in album: KOSHIEN FOREVER
      type: MusicAlbum
      date published: 2024-01-01
    isrc code: TCJPY2357031
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T10:35:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe5ec91f7bdce6268c84aba4df11f6a3a88b680b19bba290728f74af9d4d0cbf1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPY2357031
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0xe5ec91f7bdce6268c84aba4df11f6a3a88b680b19bba290728f74af9d4d0cbf1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPY2357031.
      date published: 2026-07-05T18:48:28Z
    audio: KOSHIEN FOREVER
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.959
      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: 0.521
      additional property: Energy
        type: PropertyValue
        value: 0.8
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.09
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.212
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.898
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.32
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major