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genre: opera
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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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  date published: 2010-08-01
album: Pergolesi: Stabat mater - Salve Regina - Orfeo
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album: The Essentials: Great Choral Works
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    genre: classical-piano
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:20:19Z
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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: 2026-07-08T03:20:19Z
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  track: O sacrum convivium
  track: Missa Bell' Amfitrit' altera: Agnus Dei
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album: Jommelli: Didone abbandonata (3rd Version)
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album: Wagner, S.: Kobold (Der)
album: Discover Opera
album: Straus: Der Tapfere Soldat
album: The History of German Music (100 Famous Songs)
album: Goethe And Music, Vol. 1 - Beethoven, L. Van / Mendelssohn, Felix / Gounod, C.-F. / Berlioz, H. / Massenet, J. / Mahler, G. / Spohr, L. / Boito. A
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O sacrum convivium
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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: 2026-07-08T03:20:19Z
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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: 2026-07-08T03:20:19Z
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Classic Moods - Pergolesi, G.B. / Bach, J.S. / Handel, G.F. / Bach, C.P.E. / Mozart, W.A. / Haydn, F.J. / Donizetti, G. / Mendelssohn, Felix
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    date published: 2026-07-30T15:42:38Z
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      value: 0.005
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.942
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.006
    additional property: Liveness
      type: PropertyValue
      value: 0.123
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.06
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.668
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 2, I. Vater vergieb Ihnen. Largo
  type: MusicRecording
  duration: PT6M54S
  duration ms: 414306
  explicit: false
  by artist: Joseph Haydn
  by artist: Ann-Christine Larsson
  by artist: Chorus Musicus
  by artist: Christoph Spering
  by artist: Martina Borst
  by artist: Das Neue Orchester
  by artist: Frieder Lang
  by artist: Peter Lika
  in album: Haydn: Die sieben letzten Worte unseres Erlösers am Kreuze
    type: MusicAlbum
    date published: 2000-01-01
  isrc code: FR10S1763787
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T21:10:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x89adb0ca5e47126fa73cfa934fc9871256c0dbf3c7dcea0b06198d07827a14ad
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960317
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960317
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1763787
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T21:35:24Z
  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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89adb0ca5e47126fa73cfa934fc9871256c0dbf3c7dcea0b06198d07827a14ad. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/FR10S1763787.
    date published: 2026-07-30T21:35:24Z
  audio: Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 2, I. Vater vergieb Ihnen. Largo
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.937
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
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      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.22
    additional property: Energy
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      value: 0.037
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
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    additional property: Instrumentalness
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      value: 0.002
    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: Bb
    additional property: Mode Name
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track: Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 3, II. Fürwahr ich sage dir. Grave e cantabile
  type: MusicRecording
  duration: PT5M17S
  duration ms: 317533
  explicit: false
  by artist: Joseph Haydn
  by artist: Ann-Christine Larsson
  by artist: Chorus Musicus
  by artist: Christoph Spering
  by artist: Das Neue Orchester
  by artist: Martina Borst
  by artist: Frieder Lang
  by artist: Peter Lika
  in album: Haydn: Die sieben letzten Worte unseres Erlösers am Kreuze
    type: MusicAlbum
    date published: 2000-01-01
  isrc code: FR10S1763788
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 3, II. Fürwahr ich sage dir. Grave e cantabile
track: Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 4, III. Frau hier siehe deinen Sohn. Grave
track: Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 5, IV. Mein Gott, mein Gott, warum hast du micht verlassen. Largo
track: Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 8, VI. Es ist vollbracht. Lento
track: Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 9, VII. Vater in deine Hände empfehle. Largo
track: Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 10, Il Terremoto. Presto e con tutta la forza

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T04:35:30+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x3020076128d4207e03f55f1845d6c5f2ac156d96e031b34d65cb0672cac174a8

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1763788

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3020076128d4207e03f55f1845d6c5f2ac156d96e031b34d65cb0672cac174a8. 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/FR10S1763788.
date published: 2026-07-08T03:20:19Z

Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 3, II. Fürwahr ich sage dir. Grave e cantabile
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 115.377
additional property: Musical Key
  type: PropertyValue
  value: 7
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: 0.197
additional property: Energy
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  value: 0.078
additional property: Speechiness
  type: PropertyValue
  value: 0.04
additional property: Acousticness
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  value: 0.987
additional property: Instrumentalness
  type: PropertyValue
  value: 0.003
additional property: Liveness
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  value: 0.184
additional property: Valence (Positivity)
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  value: 0.039
additional property: Loudness (dB)
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  value: -24.815
additional property: Key Name
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additional property: Mode Name
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Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 4, III. Frau hier siehe deinen Sohn. Grave
type: MusicRecording
duration: PT5M56S
duration ms: 356160
explicit: false
by artist: Joseph Haydn
by artist: Ann-Christine Larsson
by artist: Chorus Musicus
by artist: Christoph Spering
by artist: Das Neue Orchester
by artist: Martina Borst
by artist: Frieder Lang
by artist: Peter Lika
in album: Haydn: Die sieben letzten Worte unseres Erlösers am Kreuze
  type: MusicAlbum
  date published: 2000-01-01
isrc code: FR10S1763789
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:55:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf951d87d989b7bceaa0847e9e4b6541e31c9f9fc201a720274509fecb00e41f0
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/FR10S1763789
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 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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf951d87d989b7bceaa0847e9e4b6541e31c9f9fc201a720274509fecb00e41f0. 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/FR10S1763789.
  date published: 2026-07-08T03:20:19Z
audio: Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 4, III. Frau hier siehe deinen Sohn. Grave
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.475
  additional property: Musical Key
    type: PropertyValue
    value: 11
  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: 0.225
  additional property: Energy
    type: PropertyValue
    value: 0.047
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.494
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.305
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 5, IV. Mein Gott, mein Gott, warum hast du micht verlassen. Largo
type: MusicRecording
duration: PT8M8S
duration ms: 488466
explicit: false
by artist: Joseph Haydn
by artist: Christoph Spering
by artist: Ann-Christine Larsson
by artist: Chorus Musicus
by artist: Martina Borst
by artist: Das Neue Orchester
by artist: Frieder Lang
by artist: Peter Lika
in album: Haydn: Die sieben letzten Worte unseres Erlösers am Kreuze
  type: MusicAlbum
  date published: 2000-01-01
isrc code: FR10S1763790
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:20:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xae39f80cad63ed314827dbbf0af313a4b3083da70ccfa04a01b69cd9c4a1f1c7
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/FR10S1763790
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 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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae39f80cad63ed314827dbbf0af313a4b3083da70ccfa04a01b69cd9c4a1f1c7. 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/FR10S1763790.
  date published: 2026-07-08T03:20:19Z
audio: Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 5, IV. Mein Gott, mein Gott, warum hast du micht verlassen. Largo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.253
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.252
  additional property: Energy
    type: PropertyValue
    value: 0.033
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.012
  additional property: Liveness
    type: PropertyValue
    value: 0.092
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.257
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 8, VI. Es ist vollbracht. Lento
type: MusicRecording
duration: PT4M58S
duration ms: 298573
explicit: false
by artist: Joseph Haydn
by artist: Ann-Christine Larsson
by artist: Chorus Musicus
by artist: Christoph Spering
by artist: Das Neue Orchester
by artist: Martina Borst
by artist: Frieder Lang
by artist: Peter Lika
in album: Haydn: Die sieben letzten Worte unseres Erlösers am Kreuze
  type: MusicAlbum
  date published: 2000-01-01
isrc code: FR10S1763793
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T00:59:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0da0e369c9e1e50366069a0a54a563df687a178ff5b6b88fd1a6b1664eac2b02
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960494
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960494
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1763793
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T01:44:32Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da0e369c9e1e50366069a0a54a563df687a178ff5b6b88fd1a6b1664eac2b02. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FR10S1763793.
  date published: 2026-08-01T01:44:32Z
audio: Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 8, VI. Es ist vollbracht. Lento
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.537
  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: 0.223
  additional property: Energy
    type: PropertyValue
    value: 0.062
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.128
  additional property: Liveness
    type: PropertyValue
    value: 0.099
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.266
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 9, VII. Vater in deine Hände empfehle. Largo
type: MusicRecording
duration: PT6M17S
duration ms: 377026
explicit: false
by artist: Joseph Haydn
by artist: Ann-Christine Larsson
by artist: Chorus Musicus
by artist: Christoph Spering
by artist: Das Neue Orchester
by artist: Martina Borst
by artist: Frieder Lang
by artist: Peter Lika
in album: Haydn: Die sieben letzten Worte unseres Erlösers am Kreuze
  type: MusicAlbum
  date published: 2000-01-01
isrc code: FR10S1763794
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T12:38:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x96714085a89c20a508ccdfd7bf8006b632e9919c60ed22aaf3a0a1230c85f6ec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960403
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960403
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1763794
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:04:34Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96714085a89c20a508ccdfd7bf8006b632e9919c60ed22aaf3a0a1230c85f6ec. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FR10S1763794.
  date published: 2026-07-31T13:04:34Z
audio: Die sieben letzten Worte unseres Erlösers am Kreuze, Hob. XX/2: No. 9, VII. Vater in deine Hände empfehle. Largo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.677
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
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  by artist: Simbah Chamber Collegium
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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  by artist: Vienna Boys' Choir
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-22T17:48:40Z
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Wagner, S.: Kobold (Der)
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Discover Opera
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Straus: Der Tapfere Soldat
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date published: 2012-01-03

The History of German Music (100 Famous Songs)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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track: Meeresstille und gluckliche Fahrt (Calm Sea and Prosperous Voyage), Op. 27
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T08:38:45Z
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track: Faust: Faust, Act I: Le veau d'or est toujours debout
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  by artist: Nicolai Ghiaurov
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  subject of: OpenTimestamps Proof of Existence
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track: La damnation de Faust, Op. 24, Part II: Ballet des syphes (Dance of the Spirits)

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

Faust: Faust, Act I: Le veau d'or est toujours debout
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La damnation de Faust, Op. 24, Part II: Ballet des syphes (Dance of the Spirits)
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subject of: OpenTimestamps Proof of Existence
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Classic Masterworks - Richard Strauss
type: MusicAlbum
date published: 1996-01-01