Hiroko MINA
type: MusicGroup
popularity: 6
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb9096f2fd0e5c3f45c7be955feeb826d2aed0893b8d8db5714e2fb44fe8efcec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a819ba09-c543-438e-8c44-6c0419926e27.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a819ba09-c543-438e-8c44-6c0419926e27.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a819ba09-c543-438e-8c44-6c0419926e27
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb9096f2fd0e5c3f45c7be955feeb826d2aed0893b8d8db5714e2fb44fe8efcec","name":"Hiroko MINA","registered_at":"2026-06-20T08:29:43Z","symbol":"NIM1565487","token_address":"0x4818e25366b1add3af4cee9a17494dc634cd1b14","type":"artist","uuid":"a819ba09-c543-438e-8c44-6c0419926e27"}
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 0xb9096f2fd0e5c3f45c7be955feeb826d2aed0893b8d8db5714e2fb44fe8efcec. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a819ba09-c543-438e-8c44-6c0419926e27.json and https://artists.proofprofile.net/proofs/artist/a819ba09-c543-438e-8c44-6c0419926e27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xb9096f2fd0e5c3f45c7be955feeb826d2aed0893b8d8db5714e2fb44fe8efcec","name":"Hiroko MINA","registered_at":"2026-06-20T08:29:43Z","symbol":"NIM1565487","token_address":"0x4818e25366b1add3af4cee9a17494dc634cd1b14","type":"artist","uuid":"a819ba09-c543-438e-8c44-6c0419926e27"}
album: Rhapsody of Eastern Europe Musical Journey of Eastern Europe
  type: MusicAlbum
  date published: 2006-02-14
album: Run into a Storm
  type: MusicAlbum
  date published: 2021-07-27
album: Memory
  type: MusicAlbum
  date published: 2023-09-16
album: Wings of Celestial Maiden
  type: MusicAlbum
  date published: 2025-07-21
  track: Wings of Celestial Maiden
    type: MusicRecording
    duration: PT5M30S
    duration ms: 330600
    explicit: false
    by artist: Hiroko MINA
    in album: Wings of Celestial Maiden
      type: MusicAlbum
      date published: 2025-07-21
    isrc code: QZRSH2200013
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T05:58:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc99ad4d0b5f22d5f948c4ce588db01be1ceee0b7324c16281ed7057958b1173c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958110
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958110
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRSH2200013
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T06:57:12Z
    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 0xc99ad4d0b5f22d5f948c4ce588db01be1ceee0b7324c16281ed7057958b1173c. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZRSH2200013.
      date published: 2026-07-15T06:57:12Z
    audio: Wings of Celestial Maiden
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 82.553
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.234
      additional property: Energy
        type: PropertyValue
        value: 0.251
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.96
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.187
      additional property: Liveness
        type: PropertyValue
        value: 0.393
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.041
      additional property: Loudness (dB)
        type: PropertyValue
        value: -17.365
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Beyond The Silk Road
  type: MusicAlbum
  date published: 2025-08-25