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type: MusicGroup
genre: classical-mezzo-soprano
popularity: 7
followers: 157
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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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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album: Symphony No. 2: III. In ruhig fliessender Bewergung
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  date published: 2023-08-22
album: Janáček: Glagolitic Mass, Sinfonietta
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    by artist: Orchestre Philharmonique De Strasbourg
    by artist: Czech Philharmonic Choir of Brno
    by artist: Malin Byström
    by artist: Marko Letonja
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      date published: 2022-04-15
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    genre: early-modern-classical
    genre: contemporary-classical
    genre: post-romantic-era
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T08:56:20Z
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  track: Janáček: Glagolitic Mass: VII. Agnus Dei (1927 Version)
  track: Janáček: Glagolitic Mass: VI. Sanctus (1927 Version)
album: Ludwig Thuille: Songs
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album: Santtu Conducts Mahler
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album: Frances-Hoad: You Promised Me Everything
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album: Remembrance (Bonus Track Version)
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    by artist: Choir of Clare College, Cambridge
    by artist: Graham Ross
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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
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-02T03:55:08Z
    audio: Call to remembrance
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  track: When David heard
  track: Kontakion of the Dead (Kiev melody)
  track: Abide with Me
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album: Mahler: Symphony No. 3 in D Minor
album: Blackford: Pietà
album: A Love Letter to Liverpool
album: Vaughan Williams: Discoveries
album: ​ I Saw Three Ships
album: You'll never walk alone (Live)
album: Stravinsky: Oedipus Rex & Apollon musagète
album: The A-Z of Mozart Opera
album: Wagner: Die Walküre, WWV 86B (Live)
album: Beethoven: Missa Solemnis, Op. 123
album: Purer Than Pearl
album: Best of BRSO (Live)
album: Hamilton: Requiem
album: Albion's Journey
album: Meditations for Students from the Benson-Henry Institute
album: Davies: Everyman
album: Mahler: Symphony No. 2: V. Im Tempo des Scherzo (Radio Edit)
album: Jacobson: Theme & Variations

Janáček: Glagolitic Mass: VII. Agnus Dei (1927 Version)
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by artist: Leoš Janáček
by artist: Orchestre Philharmonique De Strasbourg
by artist: Adam Plachetka
by artist: Czech Philharmonic Choir of Brno
by artist: Jennifer Johnston
by artist: Ladislav Elgr
by artist: Malin Byström
by artist: Marko Letonja
in album: Janáček: Glagolitic Mass, Sinfonietta
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Janáček: Glagolitic Mass: VII. Agnus Dei (1927 Version)
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Janáček: Glagolitic Mass: VI. Sanctus (1927 Version)
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by artist: Leoš Janáček
by artist: Orchestre Philharmonique De Strasbourg
by artist: Adam Plachetka
by artist: Czech Philharmonic Choir of Brno
by artist: Jennifer Johnston
by artist: Ladislav Elgr
by artist: Malin Byström
by artist: Marko Letonja
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  date published: 2022-04-15
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T03:15:04Z
audio: Janáček: Glagolitic Mass: VI. Sanctus (1927 Version)
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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 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

Pietà: II. Quis es homo
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by artist: Amy Dickson
by artist: Gavin Carr
by artist: Bournemouth Symphony Orchestra
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T08:26:41Z
audio: Pietà: II. Quis es homo
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When David heard
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by artist: Graham Ross
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subject of: OpenTimestamps Proof of Existence
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audio: When David heard
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Kontakion of the Dead (Kiev melody)
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subject of: OpenTimestamps Proof of Existence
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Abide with Me
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subject of: OpenTimestamps Proof of Existence
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audio: Abide with Me
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They are at rest
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: They are at rest
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Mahler: Symphony No. 3 in D Minor
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Blackford: Pietà
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    date published: 2026-07-08T03:53:27Z
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track: Pietà: III. Pro peccatis suae gentis
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A Love Letter to Liverpool
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Vaughan Williams: Discoveries
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​ I Saw Three Ships
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You'll never walk alone (Live)
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Stravinsky: Oedipus Rex & Apollon musagète
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Albion's Journey
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