Elisabeth Santi
type: MusicGroup
genre: classical
popularity: 29
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-12T19:24:56Z
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track: Requiem in D Minor, K. 626: III. Sequenz, No. 6, Lacrymosa
track: Requiem in D Minor, K. 626: II. Kyrie

Requiem in D Minor, K. 626: III. Sequenz, No. 6, Lacrymosa
type: MusicRecording
duration: PT2M49S
duration ms: 169493
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Andrej Kucharsky
by artist: Catherine Bremen
by artist: Elisabeth Santi
by artist: Todd Donovan
by artist: London Philharmonic Choir
by artist: David Parry
by artist: London Philharmonic Orchestra
in album: The 50 Greatest Pieces of Classical Music
  type: MusicAlbum
  date published: 2009-11-23
genre: classical
genre: classical-era
isrc code: SEWDL9750021
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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
additional property: ProofProfileEvidenceStatus
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Requiem in D Minor, K. 626: III. Sequenz, No. 6, Lacrymosa
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  additional property: Danceability
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  additional property: Speechiness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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    value: G
  additional property: Mode Name
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    value: Minor

Requiem in D Minor, K. 626: II. Kyrie
type: MusicRecording
duration: PT2M27S
duration ms: 147466
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Andrej Kucharsky
by artist: Catherine Bremen
by artist: Elisabeth Santi
by artist: Todd Donovan
by artist: Budapest Concert Chorus
by artist: Tamás Gal
by artist: Budapest Concert Orchestra
in album: Mozart Light Classical
  type: MusicAlbum
  date published: 2020-11-10
genre: classical
genre: classical-era
isrc code: SEWDL0522502
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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
additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Requiem in D Minor, K. 626: II. Kyrie
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