Anh Trai Say Hi!
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duration: PT4M45S
duration ms: 285000
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by artist: Hoàng Hải
by artist: Ngô Kiến Huy
by artist: Anh Tú
by artist: ERIK
by artist: Vương Anh Tú
by artist: Gin Tuấn Kiệt
by artist: Quân A.P
by artist: Dương Edward
by artist: RHYDER
by artist: OgeNus
by artist: HURRYKNG
by artist: Negav
by artist: CAPTAIN BOY
by artist: Quang Hùng MasterD
by artist: ĐỖ PHÚ QUÍ
in album: Sóng 24
  type: MusicAlbum
  date published: 2024-02-11
isrc code: VNA0R2400039
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additional property: OTSTimestamp
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Anh Trai Say Hi!
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  additional property: Loudness (dB)
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  additional property: Key Name
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