Takahito Uchisawa
type: MusicGroup
genre: j-pop
popularity: 27
followers: 384
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf6c3d4a6e014bf42f56e71cc810563f858d93c1262e53ff79a452835d08db99a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de269cfe-e523-450d-8c1f-d93428b539d4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/de269cfe-e523-450d-8c1f-d93428b539d4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/de269cfe-e523-450d-8c1f-d93428b539d4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf6c3d4a6e014bf42f56e71cc810563f858d93c1262e53ff79a452835d08db99a","name":"Takahito Uchisawa","registered_at":"2026-06-12T11:41:25Z","symbol":"NIM0287018","token_address":"0x27b5b55cad9eb20a8a35d7786415e4acec792924","type":"artist","uuid":"de269cfe-e523-450d-8c1f-d93428b539d4"}
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 0xf6c3d4a6e014bf42f56e71cc810563f858d93c1262e53ff79a452835d08db99a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de269cfe-e523-450d-8c1f-d93428b539d4.json and https://artists.proofprofile.net/proofs/artist/de269cfe-e523-450d-8c1f-d93428b539d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0xf6c3d4a6e014bf42f56e71cc810563f858d93c1262e53ff79a452835d08db99a","name":"Takahito Uchisawa","registered_at":"2026-06-12T11:41:25Z","symbol":"NIM0287018","token_address":"0x27b5b55cad9eb20a8a35d7786415e4acec792924","type":"artist","uuid":"de269cfe-e523-450d-8c1f-d93428b539d4"}
album: アナログ オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2023-10-04
  track: 糸電話
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202000
    explicit: false
    by artist: Takahito Uchisawa
    in album: アナログ オリジナル・サウンドトラック
      type: MusicAlbum
      date published: 2023-10-04
    genre: j-pop
    isrc code: JP92N2399407
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T06:00:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5fa336993fdfd359f9e8731a06b0eaad1d557d0378b5e7529fa515a805a74b8d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958681
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958681
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2399407
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T06:14:54Z
    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 0x5fa336993fdfd359f9e8731a06b0eaad1d557d0378b5e7529fa515a805a74b8d. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/JP92N2399407.
      date published: 2026-07-19T06:14:54Z
    audio: 糸電話
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.755
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.535
      additional property: Energy
        type: PropertyValue
        value: 0.196
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.972
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.914
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.234
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.737
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: 糸電話 - ～つなぐ手～
    type: MusicRecording
    duration: PT1M5S
    duration ms: 65000
    explicit: false
    by artist: Takahito Uchisawa
    in album: アナログ オリジナル・サウンドトラック
      type: MusicAlbum
      date published: 2023-10-04
    genre: j-pop
    isrc code: JP92N2399408
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T17:02:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc3f4a94086032d6955957853704288e9955b9621cfc4545d1888e4382ed60e1f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2399408
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xc3f4a94086032d6955957853704288e9955b9621cfc4545d1888e4382ed60e1f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JP92N2399408.
      date published: 2026-07-05T19:27:56Z
    audio: 糸電話 - ～つなぐ手～
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 75.074
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.544
      additional property: Energy
        type: PropertyValue
        value: 0.146
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.967
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.854
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.299
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: TBS系 金曜ドラマ「DOPE 麻薬取締部特捜課」オリジナル・サウンドトラック -Complete Edition-

Loudness (dB)
type: PropertyValue
value: -16.581

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

TBS系 金曜ドラマ「DOPE 麻薬取締部特捜課」オリジナル・サウンドトラック -Complete Edition-
type: MusicAlbum
date published: 2025-08-27