藤何
type: MusicGroup
genre: vocaloid
popularity: 3
followers: 69
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c7b4d402a59e95ceba6fe2954056e3898e23bb3026210efb655a3d042d7a6e2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954013
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954013
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/351fce50-0023-40cf-b8ad-c5747a32c85a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/351fce50-0023-40cf-b8ad-c5747a32c85a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/351fce50-0023-40cf-b8ad-c5747a32c85a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:27:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6c7b4d402a59e95ceba6fe2954056e3898e23bb3026210efb655a3d042d7a6e2","name":"藤何","registered_at":"2026-06-16T08:03:24Z","symbol":"NIM0988831","token_address":"0xe2a5b715de71eb8a2d3f2764622e459d4dda12d4","type":"artist","uuid":"351fce50-0023-40cf-b8ad-c5747a32c85a"}
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 0x6c7b4d402a59e95ceba6fe2954056e3898e23bb3026210efb655a3d042d7a6e2. Chain 2 (Bitcoin): anchored in block 954013 (2026-06-16T22:27:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/351fce50-0023-40cf-b8ad-c5747a32c85a.json and https://artists.proofprofile.net/proofs/artist/351fce50-0023-40cf-b8ad-c5747a32c85a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:27:01Z
  text: {"copyright_id":"0x6c7b4d402a59e95ceba6fe2954056e3898e23bb3026210efb655a3d042d7a6e2","name":"藤何","registered_at":"2026-06-16T08:03:24Z","symbol":"NIM0988831","token_address":"0xe2a5b715de71eb8a2d3f2764622e459d4dda12d4","type":"artist","uuid":"351fce50-0023-40cf-b8ad-c5747a32c85a"}
album: 火の鳥
  type: MusicAlbum
  date published: 2023-10-11
album: 狂蘭 (feat. 音楽的同位体 裏命)
  type: MusicAlbum
  date published: 2023-10-13
album: HERO (ミュージカル空海 オリジナルサウンドトラック)
  type: MusicAlbum
  date published: 2023-10-13
album: 道化の華 (feat. 音楽的同位体 裏命)
  type: MusicAlbum
  date published: 2024-03-02
album: 青く光る (feat. 重音テト)
  type: MusicAlbum
  date published: 2024-05-05
album: 華盛り (feat. 音楽的同位体 裏命)
  type: MusicAlbum
  date published: 2024-06-22
album: 夏、遠くのあなたへ (feat. 重音テト)
  type: MusicAlbum
  date published: 2024-07-19
album: あ゛？ (feat. 可不)
  type: MusicAlbum
  date published: 2024-12-14
  track: あ゛？ (feat. 可不)
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182582
    explicit: false
    by artist: 藤何
    in album: あ゛？ (feat. 可不)
      type: MusicAlbum
      date published: 2024-12-14
    genre: vocaloid
    isrc code: TCJPC2491969
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T10:18:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x59701856d96321262b4525e96c28ce090488d83195cd88e885822b3081fafda8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2491969
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x59701856d96321262b4525e96c28ce090488d83195cd88e885822b3081fafda8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPC2491969.
      date published: 2026-07-05T01:12:41Z
    audio: あ゛？ (feat. 可不)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 151.028
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.636
      additional property: Energy
        type: PropertyValue
        value: 0.865
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.314
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.037
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.979
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.155
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: チェシャ猫 (feat. 可不)
  type: MusicAlbum
  date published: 2025-02-11
album: ばかしあい (feat. 可不)
  type: MusicAlbum
  date published: 2025-04-13