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  track: Faust, CG 4, ICG 61, Act III: "Eh quoi! toujours seule?" (Faust, Marguerite, Méphistophélès, Marthe)
  track: Faust, CG 4, ICG 61, Act III: "Il était temps! Sous le feuillage sombre" (Méphistophélès, Marguerite, Faust)
  track: Faust, CG 4, ICG 61, Act I: "Me voici! D'où vient ta surprise?" (Méphistophélès, Faust)
  track: Faust, CG 4, ICG 61, Act I: "A moi les plaisirs" (Faust, Méphistophélès)
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  track: Faust, CG 4, ICG 61, Act III: "Tête folle!" (Méphistophélès, Faust)
  track: Faust, CG 4, ICG 61, Act I: "Veins?... Je la reverrai?" (Méphistophélès, Faust)
  track: Faust, CG 4, ICG 61, Act II: "Avant de quitter ces lieux" (Valentin)
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  track: Faust, CG 4, ICG 61, Act II: "Ne permettez-vous pas" (Faust, Marguerite)
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Faust, CG 4, ICG 61, Act III: "Eh quoi! toujours seule?" (Faust, Marguerite, Méphistophélès, Marthe)
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  date published: 2026-07-31T19:53:57Z
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Faust, CG 4, ICG 61, Act III: "Il était temps! Sous le feuillage sombre" (Méphistophélès, Marguerite, Faust)
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Faust, CG 4, ICG 61, Act I: "Me voici! D'où vient ta surprise?" (Méphistophélès, Faust)
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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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d24584816f401ef82589546ccbb1d180cfe916ac311a91c1e2c81c393b4a0d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106911 — a six-check JSON result.
  date published: 2026-07-31T17:29:52Z
audio: Faust, CG 4, ICG 61, Act I: "Me voici! D'où vient ta surprise?" (Méphistophélès, Faust)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.118
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.342
  additional property: Energy
    type: PropertyValue
    value: 0.253
  additional property: Speechiness
    type: PropertyValue
    value: 0.105
  additional property: Acousticness
    type: PropertyValue
    value: 0.928
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.378
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.301
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.043
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Faust, CG 4, ICG 61, Act I: "A moi les plaisirs" (Faust, Méphistophélès)
type: MusicRecording
duration: PT2M13S
duration ms: 133600
explicit: false
by artist: Charles Gounod
by artist: Metropolitan Opera Orchestra
by artist: Fausto Cleva
by artist: Jussi Björling
by artist: Cesare Siepi
in album: GOUNOD: FAUST
  type: MusicAlbum
  date published: 2000-06-01
genre: opera
isrc code: ITE012106912
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T15:33:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb7d29aae9bfa4d4a186b21d37a29ccf521fd8f338a304866c7118b1251acb7cb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960427
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960427
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106912
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:59:18Z
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 0xb7d29aae9bfa4d4a186b21d37a29ccf521fd8f338a304866c7118b1251acb7cb. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106912 — a six-check JSON result.
  date published: 2026-07-31T15:59:18Z
audio: Faust, CG 4, ICG 61, Act I: "A moi les plaisirs" (Faust, Méphistophélès)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 89.229
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.356
  additional property: Energy
    type: PropertyValue
    value: 0.29
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.946
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.562
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.485
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.775
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Faust, CG 4, ICG 61, Act I: "O merveille!" (Faust, Méphistophélès)
type: MusicRecording
duration: PT2M33S
duration ms: 153560
explicit: false
by artist: Charles Gounod
by artist: Metropolitan Opera Orchestra
by artist: Fausto Cleva
by artist: Jussi Björling
by artist: Cesare Siepi
in album: GOUNOD: FAUST
  type: MusicAlbum
  date published: 2000-06-01
genre: opera
isrc code: ITE012106913
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T16:41:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x12a945061fc430cd47d449a03aceedbf5597135976ed6fd2ea1d15cca628a400
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106913
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
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 0x12a945061fc430cd47d449a03aceedbf5597135976ed6fd2ea1d15cca628a400. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106913 — a six-check JSON result.
  date published: 2026-07-31T17:29:52Z
audio: Faust, CG 4, ICG 61, Act I: "O merveille!" (Faust, Méphistophélès)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.3
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.23
  additional property: Energy
    type: PropertyValue
    value: 0.208
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.13
  additional property: Liveness
    type: PropertyValue
    value: 0.279
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.177
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.631
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Faust, CG 4, ICG 61, Act III: "Tête folle!" (Méphistophélès, Faust)
type: MusicRecording
duration: PT1M0S
duration ms: 60373
explicit: false
by artist: Charles Gounod
by artist: Metropolitan Opera Orchestra
by artist: Fausto Cleva
by artist: Cesare Siepi
by artist: Jussi Björling
in album: GOUNOD: FAUST
  type: MusicAlbum
  date published: 2000-06-01
genre: opera
isrc code: ITE012106942
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:16:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc3c6ec9896c4bbdeca4979b1619d6208d47cb51cf8cd534b542513baf8fd2e34
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/ITE012106942
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 0xc3c6ec9896c4bbdeca4979b1619d6208d47cb51cf8cd534b542513baf8fd2e34. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106942 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Faust, CG 4, ICG 61, Act III: "Tête folle!" (Méphistophélès, Faust)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.486
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.299
  additional property: Energy
    type: PropertyValue
    value: 0.225
  additional property: Speechiness
    type: PropertyValue
    value: 0.098
  additional property: Acousticness
    type: PropertyValue
    value: 0.91
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.162
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.257
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.123
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Faust, CG 4, ICG 61, Act I: "Veins?... Je la reverrai?" (Méphistophélès, Faust)
type: MusicRecording
duration: PT1M36S
duration ms: 96840
explicit: false
by artist: Charles Gounod
by artist: Metropolitan Opera Orchestra
by artist: Fausto Cleva
by artist: Cesare Siepi
by artist: Jussi Björling
in album: GOUNOD: FAUST
  type: MusicAlbum
  date published: 2000-06-01
genre: opera
isrc code: ITE012106914
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T22:03:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8fc79908a4c03b1a9200095c5a5876112917f5c6260a623f093b7309f81aa5e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960473
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960473
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106914
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T22:27:44Z
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 0xe8fc79908a4c03b1a9200095c5a5876112917f5c6260a623f093b7309f81aa5e. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106914 — a six-check JSON result.
  date published: 2026-07-31T22:27:44Z
audio: Faust, CG 4, ICG 61, Act I: "Veins?... Je la reverrai?" (Méphistophélès, Faust)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.573
  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: 0.347
  additional property: Energy
    type: PropertyValue
    value: 0.521
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.904
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.446
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.418
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Faust, CG 4, ICG 61, Act II: "Avant de quitter ces lieux" (Valentin)
type: MusicRecording
duration: PT3M50S
duration ms: 230466
explicit: false
by artist: Charles Gounod
by artist: Metropolitan Opera Orchestra
by artist: Fausto Cleva
by artist: Frank Guarrera
in album: GOUNOD: FAUST
  type: MusicAlbum
  date published: 2000-06-01
genre: opera
isrc code: ITE012106917
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:55:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3158b2aa629253e38e8a172cbe0d7291ce343b494d5df8404cbbc2bfa58d5c13
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/ITE012106917
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 0x3158b2aa629253e38e8a172cbe0d7291ce343b494d5df8404cbbc2bfa58d5c13. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106917 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Faust, CG 4, ICG 61, Act II: "Avant de quitter ces lieux" (Valentin)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.316
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.21
  additional property: Energy
    type: PropertyValue
    value: 0.314
  additional property: Speechiness
    type: PropertyValue
    value: 0.128
  additional property: Acousticness
    type: PropertyValue
    value: 0.96
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.8
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.261
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.835
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Faust, CG 4, ICG 61, Act II: "Allons, amis! point de vaines alarmes" (Wagner, Chœur, Méphistophélès)
type: MusicRecording
duration: PT1M17S
duration ms: 77933
explicit: false
by artist: Charles Gounod
by artist: Metropolitan Opera Orchestra
by artist: Fausto Cleva
by artist: Lawrence Davidson
by artist: Metropolitan Opera Chorus
by artist: Cesare Siepi
in album: GOUNOD: FAUST
  type: MusicAlbum
  date published: 2000-06-01
genre: opera
isrc code: ITE012106918
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T12:21:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x77d9ad8a7a5d8f474ad7c9361ab9e8554c41a2f4e80caf9651fb044cd780e8ef
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/ITE012106918
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 0x77d9ad8a7a5d8f474ad7c9361ab9e8554c41a2f4e80caf9651fb044cd780e8ef. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106918 — a six-check JSON result.
  date published: 2026-07-31T13:04:34Z
audio: Faust, CG 4, ICG 61, Act II: "Allons, amis! point de vaines alarmes" (Wagner, Chœur, Méphistophélès)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.815
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.552
  additional property: Energy
    type: PropertyValue
    value: 0.321
  additional property: Speechiness
    type: PropertyValue
    value: 0.355
  additional property: Acousticness
    type: PropertyValue
    value: 0.931
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.069
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.379
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.804
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Faust, CG 4, ICG 61, Act II: "Le veau d'or est toujours debout!" (Méphistophélès, Chœur)
type: MusicRecording
duration: PT2M2S
duration ms: 122160
explicit: false
by artist: Charles Gounod
by artist: Metropolitan Opera Orchestra
by artist: Fausto Cleva
by artist: Cesare Siepi
by artist: Metropolitan Opera Chorus
in album: GOUNOD: FAUST
  type: MusicAlbum
  date published: 2000-06-01
genre: opera
isrc code: ITE012106919
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:41:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe4863be1d312822208032d614090f58fcea3b59472f6c2b87ff9146b7afcb75e
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/ITE012106919
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 0xe4863be1d312822208032d614090f58fcea3b59472f6c2b87ff9146b7afcb75e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106919 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Faust, CG 4, ICG 61, Act II: "Le veau d'or est toujours debout!" (Méphistophélès, Chœur)
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  additional property: Tempo (BPM)
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    value: 129.235
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.438
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Faust, CG 4, ICG 61, Act II: "Merci de ta chanson!" (Chœur, Valentin, Wagner, Méphistophélès, Siebel)
type: MusicRecording
duration: PT4M28S
duration ms: 268173
explicit: false
by artist: Charles Gounod
by artist: Metropolitan Opera Orchestra
by artist: Fausto Cleva
by artist: Metropolitan Opera Chorus
by artist: Frank Guarrera
by artist: Lawrence Davidson
by artist: Cesare Siepi
in album: GOUNOD: FAUST
  type: MusicAlbum
  date published: 2000-06-01
genre: opera
isrc code: ITE012106920
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x2bd65a7ad641ec7420f323a63817268a7d6801562090aae3ffb8c317a057dd17
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960448
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106920
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12Z
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 0x2bd65a7ad641ec7420f323a63817268a7d6801562090aae3ffb8c317a057dd17. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106920 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Faust, CG 4, ICG 61, Act II: "Merci de ta chanson!" (Chœur, Valentin, Wagner, Méphistophélès, Siebel)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 10
  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: 0.357
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.233
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.13
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.51
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Faust, CG 4, ICG 61, Act II: "Nous nous retrouverons, mes amis!" (Méphistophélès, Faust)
type: MusicRecording
duration: PT1M36S
duration ms: 96226
explicit: false
by artist: Charles Gounod
by artist: Metropolitan Opera Orchestra
by artist: Fausto Cleva
by artist: Cesare Siepi
by artist: Jussi Björling
in album: GOUNOD: FAUST
  type: MusicAlbum
  date published: 2000-06-01
genre: opera
isrc code: ITE012106921
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:31:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5695b34e987fffc597dcc41b4c03984abf3a7c247709880523248b1445190f09
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/ITE012106921
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 0x5695b34e987fffc597dcc41b4c03984abf3a7c247709880523248b1445190f09. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106921 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Faust, CG 4, ICG 61, Act II: "Nous nous retrouverons, mes amis!" (Méphistophélès, Faust)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.933
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.305
  additional property: Energy
    type: PropertyValue
    value: 0.257
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.893
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.616
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.037
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Faust, CG 4, ICG 61, Act II: "Ainsi que la brise légère" (Chœur, Méphistophélès, Faust, Siebel)
type: MusicRecording
duration: PT2M32S
duration ms: 152066
explicit: false
by artist: Charles Gounod
by artist: Metropolitan Opera Orchestra
by artist: Fausto Cleva
by artist: Metropolitan Opera Chorus
by artist: Cesare Siepi
by artist: Jussi Björling
by artist: Anne Bollinger
in album: GOUNOD: FAUST
  type: MusicAlbum
  date published: 2000-06-01
genre: opera
isrc code: ITE012106922
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:10:34+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xfedd465f290bca640286a5a6ad9dbcebafa06cf4b14fa874de34ba73c4fd72b9
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/ITE012106922
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 0xfedd465f290bca640286a5a6ad9dbcebafa06cf4b14fa874de34ba73c4fd72b9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106922 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Faust, CG 4, ICG 61, Act II: "Ainsi que la brise légère" (Chœur, Méphistophélès, Faust, Siebel)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.178
  additional property: Musical Key
    type: PropertyValue
    value: 2
  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: 0.372
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.247
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.814
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Faust, CG 4, ICG 61, Act II: "Ne permettez-vous pas" (Faust, Marguerite)
type: MusicRecording
duration: PT2M15S
duration ms: 135373
explicit: false
by artist: Charles Gounod
by artist: Metropolitan Opera Orchestra
by artist: Fausto Cleva
by artist: Jussi Björling
by artist: Dorothy Kirsten
in album: GOUNOD: FAUST
  type: MusicAlbum
  date published: 2000-06-01
genre: opera
isrc code: ITE012106923
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T22:54:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdfec4854785b8864dd1223ad95f9a1579d975571dfb9cd66565da2d2116e439f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960478
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960478
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106923
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38Z
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 0xdfec4854785b8864dd1223ad95f9a1579d975571dfb9cd66565da2d2116e439f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE012106923 — a six-check JSON result.
  date published: 2026-07-31T23:30:38Z
audio: Faust, CG 4, ICG 61, Act II: "Ne permettez-vous pas" (Faust, Marguerite)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.27
  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: 0.298
  additional property: Energy
    type: PropertyValue
    value: 0.335
  additional property: Speechiness
    type: PropertyValue
    value: 0.07
  additional property: Acousticness
    type: PropertyValue
    value: 0.903
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.01
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.337
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.145
  additional property: Key Name
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  additional property: Mode Name
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Gounod: Faust (Bjorling, Siepi, Kirsten) (1950)
type: MusicAlbum
date published: 2005-06-01

Gounod: Faust (Mono version)
type: MusicAlbum
date published: 1951

Verdi: Simon Boccanegra (Live)
type: MusicAlbum
date published: 2015-02-01

Mozart: Le nozze di Figaro, K. 492
type: MusicAlbum
date published: 2014-10-01

Rossini: Il barbiere di Siviglia (Live)
type: MusicAlbum
date published: 2014-08-01

Leoncavallo: Pagliacci (Live)
type: MusicAlbum
date published: 2014-07-01

Mozart: Le nozze di Figaro, K. 492 (Live)
type: MusicAlbum
date published: 2008-07-03

BIZET: CARMEN
type: MusicAlbum
date published: 1989

Donizetti : Lucia Di Lammermoor
type: MusicAlbum
date published: 2004

Donizetti: L'Elisir d'Amore (Metropolitan Opera)
type: MusicAlbum
date published: 2012-01-13

Donizetti: Don Pasquale
type: MusicAlbum
date published: 2009-02-09
track: Lucia di Lammermoor, Act II: Tu che a Dio spiegasti
  type: MusicRecording
  duration: PT4M39S
  duration ms: 279626
  explicit: false
  by artist: Gaetano Donizetti
  by artist: Cesare Valletti
  by artist: Thomas Schippers
  by artist: Metropolitan Opera Orchestra
  in album: Donizetti: Don Pasquale
    type: MusicAlbum
    date published: 2009-02-09
  popularity: 5
  genre: opera
  isrc code: QM6N21446093
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T08:47:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6bd091759c621e14b83d6b914517ab65a631e5dee4858e48ecfd24aae81d5650
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957050
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957050
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21446093
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T14:41:13Z
  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 0x6bd091759c621e14b83d6b914517ab65a631e5dee4858e48ecfd24aae81d5650. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21446093 — a six-check JSON result.
    date published: 2026-07-07T14:41:13Z
  audio: Lucia di Lammermoor, Act II: Tu che a Dio spiegasti
    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: Time Signature
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
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Jussi Bjorling in Two Puccini Operas (1948, 1956)
type: MusicAlbum
date published: 2011-10-04

Lebendige Vergangenheit - Ramon Vinay
type: MusicAlbum
date published: 2006-08-10
track: Dio! mi potevi scagliar tutti mali della miseria (Othello)
  type: MusicRecording
  duration: PT3M59S
  duration ms: 239560
  explicit: false
  by artist: Ramon Vinay
  by artist: Metropolitan Opera Orchestra
  in album: Lebendige Vergangenheit - Ramon Vinay
    type: MusicAlbum
    date published: 2006-08-10
  genre: opera
  isrc code: ATP130561908
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Excerpts from 'Otello'
type: MusicAlbum
date published: 2006-08-30

The Great Recordings, 1929-1954
type: MusicAlbum
date published: 2014-08-01

Giuseppe Verdi: Simon Boccanegra
type: MusicAlbum
date published: 2011-04-22

Mozart: Le Nozze di Figaro (The Marriage of Figaro), K. 492
type: MusicAlbum
date published: 2014-10-01

Puccini: La bohème
type: MusicAlbum
date published: 2015-02-01

Verdi: Falstaff (Rehearsals) (Toscanini) (1950)
type: MusicAlbum
date published: 2011-04-01

Wagner Verdi, Vol. 9: Falstaff (1950)
type: MusicAlbum
date published: 2013-02-01

Mozart: Così fan tutte, K. 588 (Sung in English) [Live]
type: MusicAlbum
date published: 2007-09-05

Mascagni: Cavalleria rusticana (Mono Version)
type: MusicAlbum
date published: 1954-01-01

Verdi: Les plus beaux airs d'Otello (Mono Version)
type: MusicAlbum
date published: 1954-01-01

Guiseppe Verdi, Vol. 4 (1948, 1950)
type: MusicAlbum
date published: 2013-01-01

Arturo Toscanini collection - Volume 57 (Falstaff)
type: MusicAlbum
date published: 2022-08-12

Mascagni: Cavalleria Rusticana & Leoncavallo: Pagliacci (Remastered)
type: MusicAlbum
date published: 1953

Donizetti: Lucia di Lammermoor (Remastered)
type: MusicAlbum
date published: 1954

Donizetti: Lucia di Lammermoor, A. 46 (Excerpts)
type: MusicAlbum
date published: 2021-10-22

Bizet: Carmen
type: MusicAlbum
date published: 2008-05-06