Rancho Folclórico Stª Eufémia de Pé de Moura
type: MusicGroup
popularity: 2
followers: 2
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subject of: OpenTimestamps Proof of Existence
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track: Saudades do Futuro

Saudades do Futuro
type: MusicRecording
duration: PT3M34S
duration ms: 214920
explicit: false
by artist: Retimbrar
by artist: Miguel Arruda
by artist: Rancho Folclórico Stª Eufémia de Pé de Moura
in album: Levantar do Chão
  type: MusicAlbum
  date published: 2022-09-22
genre: fado
genre: traditional-music
isrc code: PT8EC2203004
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Saudades do Futuro
  type: AudioObject
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  additional property: Key Name
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