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genre: opera
popularity: 19
followers: 161
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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: Sibelius, J.: Cantatas / Finlandia (Complete)
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  date published: 1990-01-01
track: All-night Vigil, Op. 37, "Vespers": Bless the Lord, O my soul
track: All-night Vigil, Op. 37, "Vespers": Come, let us worship
track: All-night Vigil, Op. 37, "Vespers": Gladsome Light
track: All-night Vigil, Op. 37, "Vespers": Canticle of Simeon
track: All-night Vigil, Op. 37, "Vespers": Polyeleopsalm
track: All-night Vigil, Op. 37, "Vespers": Troparia of the Resurrection
track: All-night Vigil, Op. 37, "Vespers": Having beheld the Resurrection
track: All-night Vigil, Op. 37, "Vespers": Hymn of Thanksgiving to the Mother of God
track: All-night Vigil, Op. 37, "Vespers": Troparion of the Resurrection II
track: All-night Vigil, Op. 37, "Vespers": Troparion for the Virgin Mary
track: All-night Vigil, Op. 37, "Vespers": Blessed is the Man
track: All-night Vigil, Op. 37, "Vespers": Intonation to the Hexapsalm
track: All-night Vigil, Op. 37, "Vespers": The Great Doxology
track: All-night Vigil, Op. 37, "Vespers": Troparion of the Resurrection I
track: All-night Vigil, Op. 37, "Vespers": Kontakion for the Annunciation of the Virgin Mary

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by artist: Eugen Antoni
by artist: Raisa Palmu
by artist: Erja Wimeri
by artist: Finnish National Opera Chorus
by artist: Eric-Olof Söderström
in album: Rachmaninov: Vespers, Op. 37
  type: MusicAlbum
  date published: 2004-10-17
popularity: 27
genre: classical
genre: classical-piano
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T12:53:06Z
audio: All-night Vigil, Op. 37, "Vespers": Bless the Lord, O my soul
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All-night Vigil, Op. 37, "Vespers": Come, let us worship
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by artist: Sergei Rachmaninoff
by artist: Eugen Antoni
by artist: Raisa Palmu
by artist: Erja Wimeri
by artist: Finnish National Opera Chorus
by artist: Eric-Olof Söderström
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popularity: 22
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genre: classical-piano
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additional property: OTSVerifyInstructions
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  date published: 2026-07-02T03:55:08Z
audio: All-night Vigil, Op. 37, "Vespers": Come, let us worship
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All-night Vigil, Op. 37, "Vespers": Gladsome Light
type: MusicRecording
duration: PT2M40S
duration ms: 160906
explicit: false
by artist: Sergei Rachmaninoff
by artist: Eugen Antoni
by artist: Raisa Palmu
by artist: Erja Wimeri
by artist: Finnish National Opera Chorus
by artist: Eric-Olof Söderström
in album: Rachmaninov: Vespers, Op. 37
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  date published: 2004-10-17
popularity: 4
genre: classical
genre: classical-piano
isrc code: HKI190406904
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: All-night Vigil, Op. 37, "Vespers": Gladsome Light
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All-night Vigil, Op. 37, "Vespers": Canticle of Simeon
type: MusicRecording
duration: PT3M28S
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explicit: false
by artist: Sergei Rachmaninoff
by artist: Eugen Antoni
by artist: Raisa Palmu
by artist: Erja Wimeri
by artist: Finnish National Opera Chorus
by artist: Eric-Olof Söderström
in album: Rachmaninov: Vespers, Op. 37
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  date published: 2004-10-17
popularity: 4
genre: classical
genre: classical-piano
isrc code: HKI190406905
additional property: CopyrightID
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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: TokenDeploymentConfirmed
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  date published: 2026-07-08T03:20:19Z
audio: All-night Vigil, Op. 37, "Vespers": Canticle of Simeon
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All-night Vigil, Op. 37, "Vespers": Polyeleopsalm
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by artist: Sergei Rachmaninoff
by artist: Eugen Antoni
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by artist: Erja Wimeri
by artist: Finnish National Opera Chorus
by artist: Eric-Olof Söderström
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popularity: 4
genre: classical
genre: classical-piano
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:20:19Z
audio: All-night Vigil, Op. 37, "Vespers": Polyeleopsalm
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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    value: -22.753
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    value: Major

All-night Vigil, Op. 37, "Vespers": Troparia of the Resurrection
type: MusicRecording
duration: PT5M16S
duration ms: 316693
explicit: false
by artist: Sergei Rachmaninoff
by artist: Eugen Antoni
by artist: Raisa Palmu
by artist: Erja Wimeri
by artist: Finnish National Opera Chorus
by artist: Eric-Olof Söderström
in album: Rachmaninov: Vespers, Op. 37
  type: MusicAlbum
  date published: 2004-10-17
popularity: 3
genre: classical
genre: classical-piano
isrc code: HKI190406909
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-07T11:54:37+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x0acb0e8142639c0fd4a20b8fb35a787ced7fafffbcdb8cb81b2727cc80b3ce08
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190406909
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acb0e8142639c0fd4a20b8fb35a787ced7fafffbcdb8cb81b2727cc80b3ce08. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190406909.
  date published: 2026-07-08T03:22:41Z
audio: All-night Vigil, Op. 37, "Vespers": Troparia of the Resurrection
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  additional property: Key Name
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All-night Vigil, Op. 37, "Vespers": Having beheld the Resurrection
type: MusicRecording
duration: PT2M57S
duration ms: 177013
explicit: false
by artist: Sergei Rachmaninoff
by artist: Eugen Antoni
by artist: Raisa Palmu
by artist: Erja Wimeri
by artist: Finnish National Opera Chorus
by artist: Eric-Olof Söderström
in album: Rachmaninov: Vespers, Op. 37
  type: MusicAlbum
  date published: 2004-10-17
popularity: 3
genre: classical
genre: classical-piano
isrc code: HKI190406910
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190406910
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b785d16145551402043baf02df02dd6a0b4b1f51dce9f004244ac38796ed8f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190406910.
  date published: 2026-07-08T03:53:27Z
audio: All-night Vigil, Op. 37, "Vespers": Having beheld the Resurrection
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All-night Vigil, Op. 37, "Vespers": Hymn of Thanksgiving to the Mother of God
type: MusicRecording
duration: PT6M21S
duration ms: 381546
explicit: false
by artist: Sergei Rachmaninoff
by artist: Eugen Antoni
by artist: Raisa Palmu
by artist: Erja Wimeri
by artist: Finnish National Opera Chorus
by artist: Eric-Olof Söderström
in album: Rachmaninov: Vespers, Op. 37
  type: MusicAlbum
  date published: 2004-10-17
popularity: 3
genre: classical
genre: classical-piano
isrc code: HKI190406911
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190406911
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4516de5b7292ea18a6e627bd7062c107e6053a1d5ce081ea4284e1ebeec50d71. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190406911.
  date published: 2026-07-08T03:53:27Z
audio: All-night Vigil, Op. 37, "Vespers": Hymn of Thanksgiving to the Mother of God
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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All-night Vigil, Op. 37, "Vespers": Troparion of the Resurrection II
type: MusicRecording
duration: PT3M7S
duration ms: 187493
explicit: false
by artist: Sergei Rachmaninoff
by artist: Eugen Antoni
by artist: Raisa Palmu
by artist: Erja Wimeri
by artist: Finnish National Opera Chorus
by artist: Eric-Olof Söderström
in album: Rachmaninov: Vespers, Op. 37
  type: MusicAlbum
  date published: 2004-10-17
popularity: 2
genre: classical
genre: classical-piano
isrc code: HKI190406914
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190406914
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2157cdeff2bb38050c48fe90b6ebab6bbc0eb4c3c1bc0cfd5af673a8c7e72bbb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190406914.
  date published: 2026-07-08T03:20:19Z
audio: All-night Vigil, Op. 37, "Vespers": Troparion of the Resurrection II
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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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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All-night Vigil, Op. 37, "Vespers": Troparion for the Virgin Mary
type: MusicRecording
duration: PT3M25S
duration ms: 205866
explicit: false
by artist: Sergei Rachmaninoff
by artist: Eugen Antoni
by artist: Raisa Palmu
by artist: Erja Wimeri
by artist: Finnish National Opera Chorus
by artist: Eric-Olof Söderström
in album: Rachmaninov: Vespers, Op. 37
  type: MusicAlbum
  date published: 2004-10-17
popularity: 9
genre: classical
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5019c2961340da739048424e72be11bd725e21ce5115a36d32425e75dffd8f. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190406906.
  date published: 2026-07-29T14:28:24Z
audio: All-night Vigil, Op. 37, "Vespers": Troparion for the Virgin Mary
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.34
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.097
  additional property: Energy
    type: PropertyValue
    value: 0.085
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.099
  additional property: Liveness
    type: PropertyValue
    value: 0.088
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.065
  additional property: Key Name
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    value: F
  additional property: Mode Name
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    value: Major
isrc code: HKI190406906
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T14:28:24+00:00
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

All-night Vigil, Op. 37, "Vespers": Blessed is the Man
type: MusicRecording
duration: PT3M56S
duration ms: 236520
explicit: false
by artist: Sergei Rachmaninoff
by artist: Eugen Antoni
by artist: Raisa Palmu
by artist: Erja Wimeri
by artist: Finnish National Opera Chorus
by artist: Eric-Olof Söderström
in album: Rachmaninov: Vespers, Op. 37
  type: MusicAlbum
  date published: 2004-10-17
popularity: 4
genre: classical
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e51ed9b4ba15db70726772e22d7b5a099d58df457d44c6f080ba895e6ff3b5. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190406903.
  date published: 2026-07-30T06:39:12Z
audio: All-night Vigil, Op. 37, "Vespers": Blessed is the Man
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.532
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.197
  additional property: Energy
    type: PropertyValue
    value: 0.175
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.176
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.167
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.069
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: HKI190406903
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960216
additional property: BitcoinTime
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  value: 2026-07-30T06:39:12+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190406903
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T06:39:12+00:00
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

All-night Vigil, Op. 37, "Vespers": Intonation to the Hexapsalm
type: MusicRecording
duration: PT2M15S
duration ms: 135293
explicit: false
by artist: Sergei Rachmaninoff
by artist: Eugen Antoni
by artist: Raisa Palmu
by artist: Erja Wimeri
by artist: Finnish National Opera Chorus
by artist: Eric-Olof Söderström
in album: Rachmaninov: Vespers, Op. 37
  type: MusicAlbum
  date published: 2004-10-17
popularity: 3
genre: classical
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
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All-night Vigil, Op. 37, "Vespers": The Great Doxology
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All-night Vigil, Op. 37, "Vespers": Troparion of the Resurrection I
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All-night Vigil, Op. 37, "Vespers": Kontakion for the Annunciation of the Virgin Mary
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  date published: 2026-08-01T02:22:04Z
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