Ljubomir Puškarić
type: MusicGroup
genre: choral
genre: requiem
popularity: 11
followers: 21
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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: 2026-06-14T21:49:28Z
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album: Suppé: Il ritorno del marinaio
  type: MusicAlbum
  date published: 2017-11-03
album: Duruflé: Requiem - Respighi: Concerto gregoriano
  type: MusicAlbum
  date published: 2017-09-15
  track: Requiem, Op. 9: Introit
  track: Requiem, Op. 9: Kyrie
  track: Requiem, Op. 9: Domine Jesu Christe
  track: Requiem, Op. 9: Sanctus
  track: Requiem, Op. 9: Pie Jesu
  track: Requiem, Op. 9: Lux aeterna
  track: Requiem, Op. 9: In paradisum
  track: Concerto gregoriano, P. 135: I. Andante tranquillo - Allegro molto moderato - Calmo, tempo I
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    by artist: Ottorino Respighi
    by artist: Henry Raudales
    by artist: Munich Radio Orchestra
    by artist: Ivan Repušić
    in album: Duruflé: Requiem - Respighi: Concerto gregoriano
      type: MusicAlbum
      date published: 2017-09-15
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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
    subject of: OpenTimestamps Proof of Existence
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b6af4465c5f5d2b44c4a1165151ab0ffe7ba6c0a60ddc8f121740ab57c71ac. 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/DELW71732010.
      date published: 2026-07-08T03:20:19Z
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  track: Requiem, Op. 9: Agnus Dei
  track: Requiem, Op. 9: Libera me
album: Gotovac: Ero s onoga svijeta, Op. 17
  type: MusicAlbum
  date published: 2020-07-03
album: Frano Parać Carmina Krležiana, Missa Maruliana
  type: MusicAlbum
  date published: 2023-12-20
album: Kuljerić: Hrvatski glagoljaški rekvijem - Gotovac: Himna slobodi (Live)
  type: MusicAlbum
  date published: 2020-07-03

Requiem, Op. 9: Introit
type: MusicRecording
duration: PT3M35S
duration ms: 215061
explicit: false
by artist: Maurice Duruflé
by artist: Okka von der Damerau
by artist: Ljubomir Puškarić
by artist: Uladzimir Sinkevich
by artist: Bavarian Radio Chorus
by artist: Munich Radio Orchestra
by artist: Max Hanft
by artist: Ivan Repušić
in album: Duruflé: Requiem - Respighi: Concerto gregoriano
  type: MusicAlbum
  date published: 2017-09-15
isrc code: DELW71732001
additional property: CopyrightID
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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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additional property: TokenDeploymentConfirmed
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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 0x0ffc1ce75b26fe0ef1ac74c581e2aa924f2d772dcc278b5a2c58d81b2ddf9188. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DELW71732001.
  date published: 2026-07-02T03:55:08Z
audio: Requiem, Op. 9: Introit
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Requiem, Op. 9: Kyrie
type: MusicRecording
duration: PT4M0S
duration ms: 240490
explicit: false
by artist: Maurice Duruflé
by artist: Okka von der Damerau
by artist: Ljubomir Puškarić
by artist: Uladzimir Sinkevich
by artist: Bavarian Radio Chorus
by artist: Munich Radio Orchestra
by artist: Max Hanft
by artist: Ivan Repušić
in album: Duruflé: Requiem - Respighi: Concerto gregoriano
  type: MusicAlbum
  date published: 2017-09-15
isrc code: DELW71732002
additional property: CopyrightID
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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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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  date published: 2026-07-02T03:55:08Z
audio: Requiem, Op. 9: Kyrie
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  additional property: Tempo (BPM)
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Requiem, Op. 9: Domine Jesu Christe
type: MusicRecording
duration: PT8M16S
duration ms: 496867
explicit: false
by artist: Maurice Duruflé
by artist: Okka von der Damerau
by artist: Ljubomir Puškarić
by artist: Uladzimir Sinkevich
by artist: Bavarian Radio Chorus
by artist: Munich Radio Orchestra
by artist: Max Hanft
by artist: Ivan Repušić
in album: Duruflé: Requiem - Respighi: Concerto gregoriano
  type: MusicAlbum
  date published: 2017-09-15
isrc code: DELW71732003
additional property: CopyrightID
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: 2026-07-07T18:39:05Z
audio: Requiem, Op. 9: Domine Jesu Christe
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Requiem, Op. 9: Sanctus
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duration: PT3M23S
duration ms: 203446
explicit: false
by artist: Maurice Duruflé
by artist: Okka von der Damerau
by artist: Ljubomir Puškarić
by artist: Uladzimir Sinkevich
by artist: Bavarian Radio Chorus
by artist: Munich Radio Orchestra
by artist: Max Hanft
by artist: Ivan Repušić
in album: Duruflé: Requiem - Respighi: Concerto gregoriano
  type: MusicAlbum
  date published: 2017-09-15
isrc code: DELW71732004
additional property: CopyrightID
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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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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Requiem, Op. 9: Sanctus
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Requiem, Op. 9: Pie Jesu
type: MusicRecording
duration: PT3M22S
duration ms: 202044
explicit: false
by artist: Maurice Duruflé
by artist: Okka von der Damerau
by artist: Ljubomir Puškarić
by artist: Uladzimir Sinkevich
by artist: Bavarian Radio Chorus
by artist: Munich Radio Orchestra
by artist: Max Hanft
by artist: Ivan Repušić
in album: Duruflé: Requiem - Respighi: Concerto gregoriano
  type: MusicAlbum
  date published: 2017-09-15
isrc code: DELW71732005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:35:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa3ac5dcc6034c214395522319de520131d2718ecb6d8fb5b2dae4960df298a28
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELW71732005
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ac5dcc6034c214395522319de520131d2718ecb6d8fb5b2dae4960df298a28. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DELW71732005.
  date published: 2026-07-02T03:55:08Z
audio: Requiem, Op. 9: Pie Jesu
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.954
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.151
  additional property: Energy
    type: PropertyValue
    value: 0.058
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.008
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.098
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Requiem, Op. 9: Lux aeterna
type: MusicRecording
duration: PT4M5S
duration ms: 245875
explicit: false
by artist: Maurice Duruflé
by artist: Okka von der Damerau
by artist: Ljubomir Puškarić
by artist: Uladzimir Sinkevich
by artist: Bavarian Radio Chorus
by artist: Munich Radio Orchestra
by artist: Max Hanft
by artist: Ivan Repušić
in album: Duruflé: Requiem - Respighi: Concerto gregoriano
  type: MusicAlbum
  date published: 2017-09-15
isrc code: DELW71732007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:29:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c0d3119555916f2dd970c05568a5141702ff58babfdcfa1f0981d31f2e0d4c3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957061
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957061
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELW71732007
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:07:00Z
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
  type: PropertyValue
  value: 957061
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T16:07:00+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0d3119555916f2dd970c05568a5141702ff58babfdcfa1f0981d31f2e0d4c3. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DELW71732007.
  date published: 2026-07-07T16:07:00Z
audio: Requiem, Op. 9: Lux aeterna
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.732
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.189
  additional property: Energy
    type: PropertyValue
    value: 0.016
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.762
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.045
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.591
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Requiem, Op. 9: In paradisum
type: MusicRecording
duration: PT3M6S
duration ms: 186480
explicit: false
by artist: Maurice Duruflé
by artist: Okka von der Damerau
by artist: Ljubomir Puškarić
by artist: Uladzimir Sinkevich
by artist: Bavarian Radio Chorus
by artist: Munich Radio Orchestra
by artist: Max Hanft
by artist: Ivan Repušić
in album: Duruflé: Requiem - Respighi: Concerto gregoriano
  type: MusicAlbum
  date published: 2017-09-15
isrc code: DELW71732009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:40:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3fdcaf56f7087b352826f06921dc2aa432a7db94d862e9d64927144aea1ee47
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
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/DELW71732009
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
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fdcaf56f7087b352826f06921dc2aa432a7db94d862e9d64927144aea1ee47. 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/DELW71732009.
  date published: 2026-07-08T03:22:41Z
audio: Requiem, Op. 9: In paradisum
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.662
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.117
  additional property: Energy
    type: PropertyValue
    value: 0.02
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.95
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -36.173
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Requiem, Op. 9: Agnus Dei
type: MusicRecording
duration: PT4M3S
duration ms: 243491
explicit: false
by artist: Maurice Duruflé
by artist: Okka von der Damerau
by artist: Ljubomir Puškarić
by artist: Uladzimir Sinkevich
by artist: Bavarian Radio Chorus
by artist: Munich Radio Orchestra
by artist: Max Hanft
by artist: Ivan Repušić
in album: Duruflé: Requiem - Respighi: Concerto gregoriano
  type: MusicAlbum
  date published: 2017-09-15
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137eb511a1f068371085d60033589219246f269d904349fc2f3335e0ef1ee51b. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/DELW71732006.
  date published: 2026-07-30T02:30:29Z
audio: Requiem, Op. 9: Agnus Dei
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.566
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.166
  additional property: Energy
    type: PropertyValue
    value: 0.056
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.95
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.963
  additional property: Liveness
    type: PropertyValue
    value: 0.092
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.458
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: DELW71732006
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: 960199
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T02:30:29+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELW71732006
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960199
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960199
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T02:30:29+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

Requiem, Op. 9: Libera me
type: MusicRecording
duration: PT5M32S
duration ms: 332379
explicit: false
by artist: Maurice Duruflé
by artist: Okka von der Damerau
by artist: Ljubomir Puškarić
by artist: Uladzimir Sinkevich
by artist: Bavarian Radio Chorus
by artist: Munich Radio Orchestra
by artist: Max Hanft
by artist: Ivan Repušić
in album: Duruflé: Requiem - Respighi: Concerto gregoriano
  type: MusicAlbum
  date published: 2017-09-15
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbe46a5969e74bf742c53380784ac3f8b657bd92e0e27910118e2480dec34fe. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DELW71732008.
  date published: 2026-07-30T15:42:38Z
audio: Requiem, Op. 9: Libera me
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.066
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.167
  additional property: Energy
    type: PropertyValue
    value: 0.182
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.776
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.575
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: DELW71732008
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: 960273
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T15:42:38+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELW71732008
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960273
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960273
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38+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