Государственный академический русский народный хор имени Митрофана Пятницкого
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subject of: OpenTimestamps Proof of Existence
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track: Эх, яблочко

Эх, яблочко
type: MusicRecording
duration: PT2M36S
duration ms: 156995
explicit: false
by artist: Государственный академический русский народный хор имени Митрофана Пятницкого
in album: С Днём ВМФ
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  date published: 2021-07-23
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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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  date published: 2026-06-13T12:53:06Z
audio: Эх, яблочко
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