夏未
type: MusicGroup
popularity: 4
followers: 209
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb2de5d057e68abddb1beb2aa47c8b941101a376487b206cd18244cf1b7aae915
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/181344e5-a48c-412f-9e62-60ab37d51d0d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/181344e5-a48c-412f-9e62-60ab37d51d0d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/181344e5-a48c-412f-9e62-60ab37d51d0d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb2de5d057e68abddb1beb2aa47c8b941101a376487b206cd18244cf1b7aae915","name":"夏未","registered_at":"2026-06-15T21:51:26Z","symbol":"NIM0842685","token_address":"0x043b4f9042356cec16b594ec3a6856593c572580","type":"artist","uuid":"181344e5-a48c-412f-9e62-60ab37d51d0d"}
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 0xb2de5d057e68abddb1beb2aa47c8b941101a376487b206cd18244cf1b7aae915. Chain 2 (Bitcoin): anchored in block 953911 (2026-06-16T08:03:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/181344e5-a48c-412f-9e62-60ab37d51d0d.json and https://artists.proofprofile.net/proofs/artist/181344e5-a48c-412f-9e62-60ab37d51d0d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T08:03:10Z
  text: {"copyright_id":"0xb2de5d057e68abddb1beb2aa47c8b941101a376487b206cd18244cf1b7aae915","name":"夏未","registered_at":"2026-06-15T21:51:26Z","symbol":"NIM0842685","token_address":"0x043b4f9042356cec16b594ec3a6856593c572580","type":"artist","uuid":"181344e5-a48c-412f-9e62-60ab37d51d0d"}
album: 麗しき雨
  type: MusicAlbum
  date published: 2020-02-14
album: sapphire
  type: MusicAlbum
  date published: 2020-07-15
album: Sapphire
  type: MusicAlbum
  date published: 2020-07-15
album: アイデンティティ
  type: MusicAlbum
  date published: 2022-09-02
album: Ikiteyukuniha
  type: MusicAlbum
  date published: 2025-03-11
album: 生きてゆくには
  type: MusicAlbum
  date published: 2025-03-11
album: SODA
  type: MusicAlbum
  date published: 2025-04-25
album: Nagisa
  type: MusicAlbum
  date published: 2025-06-07
album: 渚
  type: MusicAlbum
  date published: 2025-06-07
  track: 渚
    type: MusicRecording
    duration: PT3M45S
    duration ms: 225304
    explicit: false
    by artist: 夏未
    in album: 渚
      type: MusicAlbum
      date published: 2025-06-07
    isrc code: JPA962580160
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T07:27:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd0f1bbe08918db17bd97708d1b81861555d85f053a15f5185dab50af4806015d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956776
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956776
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA962580160
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:59:37Z
    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 0xd0f1bbe08918db17bd97708d1b81861555d85f053a15f5185dab50af4806015d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPA962580160.
      date published: 2026-07-05T10:59:37Z
    audio: 渚
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.811
      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: 0.713
      additional property: Energy
        type: PropertyValue
        value: 0.121
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.931
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.32
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.592
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.267
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Serenade (Live album at Half Moon Hall, 2025)
  type: MusicAlbum
  date published: 2025-10-29