さだまさよし
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genre: kayokyoku
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followers: 42
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-17T08:11:48Z
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track: 星のかけらを探しに行こう Again - 2010 Acoustic ver.

星のかけらを探しに行こう Again - 2010 Acoustic ver.
type: MusicRecording
duration: PT5M44S
duration ms: 344666
explicit: false
by artist: Kyoko
by artist: さだまさよし
in album: 福耳 THE BEST ACOUSTIC WORKS
  type: MusicAlbum
  date published: 2010-07-21
isrc code: JPBV01021192
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additional property: OTSTimestamp
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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 → 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
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72bddac198568465aca36281a02e517019fe51ecdd443b0a09ec5a728e4ef1b. 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/JPBV01021192.
  date published: 2026-07-06T07:16:32Z
audio: 星のかけらを探しに行こう Again - 2010 Acoustic ver.
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  additional property: Loudness (dB)
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  additional property: Key Name
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