美月優
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 5
followers: 138
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4fa145d220e7ff36db435a89a0bcb14432407ad2f6666263f993843ead801b14
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/54918358-ae79-44d4-a35f-7bf784433fb0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/54918358-ae79-44d4-a35f-7bf784433fb0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/54918358-ae79-44d4-a35f-7bf784433fb0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4fa145d220e7ff36db435a89a0bcb14432407ad2f6666263f993843ead801b14","name":"美月優","registered_at":"2026-06-16T19:08:26Z","symbol":"NIM1147496","token_address":"0xa0aa0d9eeab5c07933c34f7dc7592e39cbb0b45a","type":"artist","uuid":"54918358-ae79-44d4-a35f-7bf784433fb0"}
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 0x4fa145d220e7ff36db435a89a0bcb14432407ad2f6666263f993843ead801b14. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54918358-ae79-44d4-a35f-7bf784433fb0.json and https://artists.proofprofile.net/proofs/artist/54918358-ae79-44d4-a35f-7bf784433fb0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x4fa145d220e7ff36db435a89a0bcb14432407ad2f6666263f993843ead801b14","name":"美月優","registered_at":"2026-06-16T19:08:26Z","symbol":"NIM1147496","token_address":"0xa0aa0d9eeab5c07933c34f7dc7592e39cbb0b45a","type":"artist","uuid":"54918358-ae79-44d4-a35f-7bf784433fb0"}
album: 望郷列車～ふるさとを訪ねて～
  type: MusicAlbum
  date published: 2022-05-11
album: 望郷列車～ふるさとを訪ねて～
  type: MusicAlbum
  date published: 2022-05-11
album: 酔いどれかもめ
  type: MusicAlbum
  date published: 2024-09-18
  track: 酔いどれかもめ
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207240
    explicit: false
    by artist: 美月優
    in album: 酔いどれかもめ
      type: MusicAlbum
      date published: 2024-09-18
    genre: enka
    genre: kayokyoku
    isrc code: JPTK02403580
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T02:32:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0101d847d72a91e5607607b564bade42d5f7eed33d37140593ae74bdfee2b0ca
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTK02403580
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x0101d847d72a91e5607607b564bade42d5f7eed33d37140593ae74bdfee2b0ca. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPTK02403580.
      date published: 2026-07-05T10:01:46Z
    audio: 酔いどれかもめ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.562
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.618
      additional property: Energy
        type: PropertyValue
        value: 0.752
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.632
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.838
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.391
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 酔いどれかもめ
  type: MusicAlbum
  date published: 2024-09-24
album: 酔いどれかもめ
  type: MusicAlbum
  date published: 2024-09-24