試行錯誤
type: MusicRecording
duration: PT2M3S
duration ms: 123373
explicit: false
by artist: 松田彬人
in album: TVアニメ『響け！ユーフォニアム３』オリジナルサウンドトラック「つながるメロディ」
  type: MusicAlbum
  date published: 2024-07-31
isrc code: JPI102401991
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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  value: 2026-07-06T03:05:52+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956891
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102401991
additional property: OTSTimestamp
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  value: 2026-07-06T07:16:32Z
additional property: OTSVerifyInstructions
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  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 → block OTSBitcoinBlock must exist at that height 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 0x54efa5281c69e694999a2c561cf0964047c4eb1f377c47fbf7e28e1ed8c81813. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPI102401991.
  date published: 2026-07-06T07:16:32Z
audio: 試行錯誤
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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