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genre: choral
genre: gregorian chant
popularity: 10
followers: 13
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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 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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track: Vespers, Op. 37: Come, Let Us Worship
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  by artist: Sergei Rachmaninoff
  by artist: Yuri Korinnyk
  by artist: Mykhaylo Tyshchenko
  by artist: Olga Borusene
  by artist: National Choir Of The Ukraine "Dumka"
  by artist: Yevhen Savchuk
  in album: Rachmaninoff: Vespers, Op. 37
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    date published: 2009-07-01
  genre: classical
  genre: classical-piano
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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 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: 2026-07-02T03:55:08Z
  audio: Vespers, Op. 37: Come, Let Us Worship
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track: Vespers, Op. 37: Bless the Lord, O My Soul
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  by artist: Yuri Korinnyk
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    date published: 2009-07-01
  genre: classical
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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 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: 2026-07-02T03:55:08Z
  audio: Vespers, Op. 37: Bless the Lord, O My Soul
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track: Vespers, Op. 37: Blessed Be the Man
track: Vespers, Op. 37: Rejoice, O Virgin

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Vespers, Op. 37: Blessed Be the Man
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duration: PT5M37S
duration ms: 337556
explicit: false
by artist: Sergei Rachmaninoff
by artist: Yuri Korinnyk
by artist: Mykhaylo Tyshchenko
by artist: Olga Borusene
by artist: National Choir Of The Ukraine "Dumka"
by artist: Yevhen Savchuk
in album: Rachmaninoff: Vespers, Op. 37
  type: MusicAlbum
  date published: 2009-07-01
genre: classical
genre: classical-piano
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additional property: CopyrightID
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Vespers, Op. 37: Blessed Be the Man
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Vespers, Op. 37: Rejoice, O Virgin
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by artist: Sergei Rachmaninoff
by artist: Mykhaylo Tyshchenko
by artist: Yuri Korinnyk
by artist: National Choir Of The Ukraine "Dumka"
by artist: Yevhen Savchuk
by artist: Olga Borusene
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  date published: 2009-07-01
genre: classical
genre: classical-piano
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Vespers, Op. 37: Rejoice, O Virgin
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