出羽良彰/兼松衆
type: MusicGroup
popularity: 6
followers: 120
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc0e122f2f1f96c657a17c8e3dacf641c3840d56f23893dc9ae992cbd06913314
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d18a9a2e-3636-44c7-b10a-230ca186a7e8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d18a9a2e-3636-44c7-b10a-230ca186a7e8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d18a9a2e-3636-44c7-b10a-230ca186a7e8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc0e122f2f1f96c657a17c8e3dacf641c3840d56f23893dc9ae992cbd06913314","name":"出羽良彰/兼松衆","registered_at":"2026-06-21T01:16:49Z","symbol":"NIM1774747","token_address":"0x832f6240508b13db68170d72ca5f3ddc8738ea32","type":"artist","uuid":"d18a9a2e-3636-44c7-b10a-230ca186a7e8"}
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 0xc0e122f2f1f96c657a17c8e3dacf641c3840d56f23893dc9ae992cbd06913314. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d18a9a2e-3636-44c7-b10a-230ca186a7e8.json and https://artists.proofprofile.net/proofs/artist/d18a9a2e-3636-44c7-b10a-230ca186a7e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0xc0e122f2f1f96c657a17c8e3dacf641c3840d56f23893dc9ae992cbd06913314","name":"出羽良彰/兼松衆","registered_at":"2026-06-21T01:16:49Z","symbol":"NIM1774747","token_address":"0x832f6240508b13db68170d72ca5f3ddc8738ea32","type":"artist","uuid":"d18a9a2e-3636-44c7-b10a-230ca186a7e8"}
album: TBS系 火曜ドラマ「初めて恋をした日に読む話」オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2019-03-06
  track: 初めて恋をした日に読む話 -メインテーマ-
    type: MusicRecording
    duration: PT3M52S
    duration ms: 232506
    explicit: false
    by artist: 出羽良彰/兼松衆
    in album: TBS系 火曜ドラマ「初めて恋をした日に読む話」オリジナル・サウンドトラック
      type: MusicAlbum
      date published: 2019-03-06
    isrc code: JPL801905001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T04:03:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc9f7a1067866e89012442090be822814284246f0f4e4d836a82fac8bad58ad87
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPL801905001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0xc9f7a1067866e89012442090be822814284246f0f4e4d836a82fac8bad58ad87. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPL801905001.
      date published: 2026-07-06T06:56:49Z
    audio: 初めて恋をした日に読む話 -メインテーマ-
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.979
      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: 0.491
      additional property: Energy
        type: PropertyValue
        value: 0.894
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.905
      additional property: Liveness
        type: PropertyValue
        value: 0.243
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.807
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.089
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: TBS系 金曜ドラマ「恋する母たち」オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2020-12-09