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album: Wagner: Siegfried (Recorded Live 1959)
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album: Der Rosenkavalier op. 59
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album: Richard Strauss: Les grands opéras - La discothèque idéale de Diapason, Vol. 7
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Die Fledermaus, Act III: No. 16, Finale. O Fledermaus, o Fledermaus
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  date published: 2026-07-08T03:20:19Z
audio: Die Fledermaus, Act III: No. 16, Finale. O Fledermaus, o Fledermaus
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Die Fledermaus, Act III: No. 14, Couplet. Spiel' ich die Unschuld vom Lande
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  date published: 2026-07-29T23:42:34Z
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La bohème, Act I, SC 67: Si può? - Live
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  date published: 2026-07-08T03:20:19Z
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Du feines Taübchen, nur herein (Monostatos / Pamina / Papageno)
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  date published: 2026-07-30T02:30:29Z
audio: Du feines Taübchen, nur herein (Monostatos / Pamina / Papageno)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.46
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.53
  additional property: Energy
    type: PropertyValue
    value: 0.127
  additional property: Speechiness
    type: PropertyValue
    value: 0.489
  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.199
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.421
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.936
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FR60Z0700930
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/FR60Z0700930
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

Nur Stille! (Monostatos / La Reine de la nuit / Les Dames)
type: MusicRecording
duration: PT2M32S
duration ms: 152720
explicit: false
by artist: Valérie Karsenti
by artist: Herbert von Karajan
by artist: Wiener Philharmoniker
by artist: Wilma Lipp
by artist: Peter Klein
in album: La flûte enchantée
  type: MusicAlbum
  date published: 2013-11-06
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830595e61550a31d6e3a0e00d454d4279cb487b2b12fa01641ba874e9f5b14c3. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FR60Z0701300.
  date published: 2026-07-30T04:47:22Z
audio: Nur Stille! (Monostatos / La Reine de la nuit / Les Dames)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 148.001
  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: 0.492
  additional property: Energy
    type: PropertyValue
    value: 0.17
  additional property: Speechiness
    type: PropertyValue
    value: 0.139
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.148
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.305
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.61
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FR60Z0701300
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: 960207
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T04:47:22+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR60Z0701300
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960207
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960207
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T04:47:22+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

Die Fledermaus, Act II
type: MusicRecording
duration: PT4M10S
duration ms: 250200
explicit: false
by artist: Hilde Gueden
by artist: Vienna Philharmonic
by artist: Walter Berry
by artist: Peter Klein
by artist: Regina Resnik
by artist: Eberhard Wächter
by artist: Erika Köth
by artist: Erich Kunz
by artist: Herbert von Karajan
by artist: Waldemar Kmentt
in album: Die Fledermaus
  type: MusicAlbum
  date published: 2011-09-13
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6f881d88f311ee1804376afabacd61823ef44c5b185a866a04c92eb5418feb. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USX761121829.
  date published: 2026-07-31T15:20:15Z
audio: Die Fledermaus, Act II
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.64
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.485
  additional property: Energy
    type: PropertyValue
    value: 0.289
  additional property: Speechiness
    type: PropertyValue
    value: 0.062
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.012
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.245
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.822
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USX761121829
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: 960418
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T15:20:15+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761121829
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15+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

OTSBitcoinBlock
type: PropertyValue
value: 957120

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957120

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF054202020

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a775533a99a0d1b67eb994a50cd0c268819e42efa58fb98e2249a2c16e0a1f. 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/DEF054202020.
date published: 2026-07-08T03:22:41Z

Der Zigeunerbaron: Overture - Recorded 1942
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 114.811
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: 0.255
additional property: Energy
  type: PropertyValue
  value: 0.085
additional property: Speechiness
  type: PropertyValue
  value: 0.04
additional property: Acousticness
  type: PropertyValue
  value: 0.884
additional property: Instrumentalness
  type: PropertyValue
  value: 0.723
additional property: Liveness
  type: PropertyValue
  value: 0.111
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.169
additional property: Loudness (dB)
  type: PropertyValue
  value: -21.736
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Delirien Waltz, Op. 212 - Recorded 1959
type: MusicRecording
duration: PT8M21S
duration ms: 501933
explicit: false
by artist: Josef Strauss
by artist: Wiener Philharmoniker
by artist: Herbert von Karajan
in album: Karajan A-Z: Johann Strauss - Josef Strauss
  type: MusicAlbum
  date published: 2024-05-17
isrc code: GBF076010170
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:03:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6af4fd9be5eb639e9b376ee0ae2a9e2b58771e1d16cd607cc5d97fe316bf49fd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076010170
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af4fd9be5eb639e9b376ee0ae2a9e2b58771e1d16cd607cc5d97fe316bf49fd. 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/GBF076010170.
  date published: 2026-07-08T03:22:41Z
audio: Delirien Waltz, Op. 212 - Recorded 1959
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.94
  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: 0.237
  additional property: Energy
    type: PropertyValue
    value: 0.174
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.905
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.85
  additional property: Liveness
    type: PropertyValue
    value: 0.179
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.232
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.241
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Der Zigeunerbaron: Overture - Recorded 1959
type: MusicRecording
duration: PT8M0S
duration ms: 480293
explicit: false
by artist: Johann Strauss II
by artist: Wiener Philharmoniker
by artist: Herbert von Karajan
in album: Karajan A-Z: Johann Strauss - Josef Strauss
  type: MusicAlbum
  date published: 2024-05-17
isrc code: GBF076010180
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:54:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4267fd2c8a848bfd1a9106f2451415555a96c89c4b2bef8215b07a6260bab6fa
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/GBF076010180
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4267fd2c8a848bfd1a9106f2451415555a96c89c4b2bef8215b07a6260bab6fa. 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/GBF076010180.
  date published: 2026-07-08T03:20:19Z
audio: Der Zigeunerbaron: Overture - Recorded 1959
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.494
  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: 0.264
  additional property: Energy
    type: PropertyValue
    value: 0.054
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.835
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.486
  additional property: Liveness
    type: PropertyValue
    value: 0.083
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.118
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.815
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Auf der Jagd, Polka, Op. 373 - Recorded 1959
type: MusicRecording
duration: PT2M13S
duration ms: 133506
explicit: false
by artist: Johann Strauss II
by artist: Wiener Philharmoniker
by artist: Herbert von Karajan
in album: Karajan A-Z: Johann Strauss - Josef Strauss
  type: MusicAlbum
  date published: 2024-05-17
isrc code: GBF076010190
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:22:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x932c0fcaf9c18f85799975fb8d1d6c5ef8799ae6212eb4a9f2f186eee64d56cf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076010190
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932c0fcaf9c18f85799975fb8d1d6c5ef8799ae6212eb4a9f2f186eee64d56cf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBF076010190.
  date published: 2026-07-08T08:56:20Z
audio: Auf der Jagd, Polka, Op. 373 - Recorded 1959
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.056
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.473
  additional property: Energy
    type: PropertyValue
    value: 0.306
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.883
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.763
  additional property: Liveness
    type: PropertyValue
    value: 0.083
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.573
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.009
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Radetzky March, Op. 228 - Recorded 1966
type: MusicRecording
duration: PT2M50S
duration ms: 170266
explicit: false
by artist: Johann Strauss I
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Karajan A-Z: Johann Strauss - Josef Strauss
  type: MusicAlbum
  date published: 2024-05-17
genre: classical
genre: early-romantic-era
isrc code: DEF056604130
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T00:24:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2c0f4051dd87d901c5a313e18519d4b0287d27982d3ffd8fbdf4a8a9c715e0fd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957084
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957084
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056604130
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T20:41:57Z
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An der schönen blauen Donau, Waltz, Op. 314 - Recorded 1980
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by artist: Berliner Philharmoniker
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: An der schönen blauen Donau, Waltz, Op. 314 - Recorded 1980
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Künstlerleben, Op. 316 - Recorded 1980
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by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Künstlerleben, Op. 316 - Recorded 1980
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Der Ring des Nibelungen - Metropolitan Opera 1951 Fritz Stiedry
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Richard Strauss: Les grands opéras - La discothèque idéale de Diapason, Vol. 7
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Die Sänger der Wiener Staatsoper zur Wiedereröffnung des Hauses
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A Night In Venice
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T07:53:57Z
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track: Die Fledermaus, Act I: No. 5, Finale. a. Trinke, Liebchen, trinke schnell
track: Die Fledermaus, Act I: No. 5b, Ich höre Stimmen! - No. 5c, Mein Herr, was dächten Sie von mir
track: Die Fledermaus, Act I: No. 5, Finale. d. Nein, nein, ich zweifle gar nicht mehr
track: Die Fledermaus, Act II: No. 7, Couplet. Ich lade gern mir Gäste ein
track: Die Fledermaus, Act II: No. 8a, Ach, meine Herr'n und Damen
track: Die Fledermaus, Act II: No. 11, Finale. b. Herr, Chevalier, ich grüsse Sie!
track: Die Fledermaus, Act II: No. 11, Finale. c. Genug damit, genug
track: Die Fledermaus, Act III: No. 16, Finale. O Fledermaus, o Fledermaus
track: Die Fledermaus, Act III: No. 14, Couplet. Spiel' ich die Unschuld vom Lande

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0b22b4456bb7503d7353e9d2b86a2111fc7c15ffff16c5ae75a23155af7d0e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:00:26Z), 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/GBBBA6075010.
date published: 2026-07-21T17:00:26Z

Die Fledermaus, Act I: No. 3, Duet. Komm mit mir zum Souper
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:50:38Z
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Die Fledermaus, Act I: No. 5b, Ich höre Stimmen! - No. 5c, Mein Herr, was dächten Sie von mir
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Die Fledermaus, Act I: No. 5, Finale. d. Nein, nein, ich zweifle gar nicht mehr
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Die Fledermaus, Act II: No. 7, Couplet. Ich lade gern mir Gäste ein
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Die Fledermaus, Act II: No. 8a, Ach, meine Herr'n und Damen
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  date published: 2026-07-07T18:39:05Z
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Die Fledermaus, Act II: No. 11, Finale. b. Herr, Chevalier, ich grüsse Sie!
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Die Fledermaus, Act II: No. 11, Finale. c. Genug damit, genug
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Ultimate Wagner
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Puccini: La Bohème live conducted by Herbert von Karajan (Live)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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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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  subject of: OpenTimestamps Proof of Existence
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track: La bohème, Act I, SC 67: Che gelida manina! - Live

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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

La bohème, Act I, SC 67: Ho pagato il trimestre - Live
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La bohème, Act I, SC 67: Che gelida manina! - Live
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: La bohème, Act I, SC 67: Che gelida manina! - Live
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The Merry Widow Highlights
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Strauss, R.: Ariadne auf Naxos (Live at Festspielhaus, Salzburg Festival, 1954)
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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    date published: 2026-07-08T03:53:27Z
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  subject of: OpenTimestamps Proof of Existence
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track: Tristan und Isolde, WWV 90 / Act 1: "Welcher Wahn! Welch' eiles Zürnen!"
track: Tristan und Isolde, WWV 90 / Act 1: "Kennst du der Mutter Künste nicht?"
track: Tristan und Isolde, WWV 90 / Act 1: "Herrn Tristan bringe meinen Gruß"
track: Tristan und Isolde, WWV 90 / Act 1: "Herr Tristan trete nah!"
track: Tristan und Isolde, WWV 90 / Act 1: "Was schwurt Ihr, Frau?"
track: Tristan und Isolde, WWV 90 / Act 1: "Dein Schweigen fass' ich"
track: Tristan und Isolde, WWV 90 / Act 2: "Hörst du Sie noch?"
track: Tristan und Isolde, WWV 90 / Act 2: "Dem Freund zu lieb"
track: Tristan und Isolde, WWV 90 / Act 2: "Isolde! Geliebte! - Tristan! Geliebter!"
track: Tristan und Isolde, WWV 90 / Act 2: "Der öde Tag zum letzten Mal!"
track: Tristan und Isolde, WWV 90 / Act 3: "Mild und leise wie er lächelt"

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

Tristan und Isolde, WWV 90 / Act 1: "Wie lachend sie mir Lieder singen"
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Tristan und Isolde, WWV 90 / Act 1: "Welcher Wahn! Welch' eiles Zürnen!"
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Tristan und Isolde, WWV 90 / Act 1: "Kennst du der Mutter Künste nicht?"
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
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Tristan und Isolde, WWV 90 / Act 1: "Herrn Tristan bringe meinen Gruß"
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Tristan und Isolde, WWV 90 / Act 1: "Herrn Tristan bringe meinen Gruß"
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Tristan und Isolde, WWV 90 / Act 1: "Herr Tristan trete nah!"
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Tristan und Isolde, WWV 90 / Act 1: "Herr Tristan trete nah!"
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Tristan und Isolde, WWV 90 / Act 1: "Was schwurt Ihr, Frau?"
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Tristan und Isolde, WWV 90 / Act 1: "Was schwurt Ihr, Frau?"
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Tristan und Isolde, WWV 90 / Act 1: "Dein Schweigen fass' ich"
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
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Tristan und Isolde, WWV 90 / Act 2: "Hörst du Sie noch?"
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c70eda948389907d28ebba02f829bfa12a2047365f7479daa61a62c6db2fb7. 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/GBF071741417.
  date published: 2026-07-08T03:22:41Z
audio: Tristan und Isolde, WWV 90 / Act 2: "Hörst du Sie noch?"
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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Tristan und Isolde, WWV 90 / Act 2: "Dem Freund zu lieb"
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duration: PT6M24S
duration ms: 384586
explicit: false
by artist: Richard Wagner
by artist: Birgit Nilsson
by artist: Regina Resnik
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Wagner: Tristan und Isolde
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  date published: 2018-05-04
genre: classical
genre: opera
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071741418
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f463548912866b161033417ff921606d4f840b8fcc9d21bb84aa7e2eff9fca. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBF071741418.
  date published: 2026-07-08T08:56:20Z
audio: Tristan und Isolde, WWV 90 / Act 2: "Dem Freund zu lieb"
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Tristan und Isolde, WWV 90 / Act 2: "Isolde! Geliebte! - Tristan! Geliebter!"
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duration: PT8M59S
duration ms: 539093
explicit: false
by artist: Richard Wagner
by artist: Birgit Nilsson
by artist: Fritz Uhl
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 2018-05-04
genre: classical
genre: opera
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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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 0x388e48f1985bbf5614c9bb48af79658a6b664e7f93d23b17135eb2819eeb6b00. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071741419.
  date published: 2026-07-08T03:53:27Z
audio: Tristan und Isolde, WWV 90 / Act 2: "Isolde! Geliebte! - Tristan! Geliebter!"
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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Tristan und Isolde, WWV 90 / Act 2: "Der öde Tag zum letzten Mal!"
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duration: PT13M9S
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explicit: false
by artist: Richard Wagner
by artist: Regina Resnik
by artist: Fritz Uhl
by artist: Ernst Kozub
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 2018-05-04
genre: classical
genre: opera
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023fad690642ec2918f1656b7e49928dcce95747b7441a8195b9c53920cb6880. 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/GBF071741426.
  date published: 2026-07-08T03:20:19Z
audio: Tristan und Isolde, WWV 90 / Act 2: "Der öde Tag zum letzten Mal!"
  type: AudioObject
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Tristan und Isolde, WWV 90 / Act 3: "Mild und leise wie er lächelt"
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duration: PT7M8S
duration ms: 428186
explicit: false
by artist: Richard Wagner
by artist: Birgit Nilsson
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 2018-05-04
genre: classical
genre: opera
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe652576399398463243fb7508e9bf69cdef0a26e1b8631c5aac744c3e39a4af. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071741440.
  date published: 2026-07-08T03:53:27Z
audio: Tristan und Isolde, WWV 90 / Act 3: "Mild und leise wie er lächelt"
  type: AudioObject
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Strauss: Die Fledermaus
type: MusicAlbum
date published: 1960-01-01

Tchaikovsky: Eugene Onegin, Op. 24, TH 5 (Sung in German) [Live]
type: MusicAlbum
date published: 2015-03-03

J. Strauss II: Der Zigeunerbaron [Recorded 1955]
type: MusicAlbum
date published: 2014-10-01

J. Strauss II: Der Zigeunerbaron (The Gypsy Baron) [Recorded 1955]
type: MusicAlbum
date published: 2014-10-01

Gottfried von Einem: Der Prozeß, Op. 14 (Live)
type: MusicAlbum
date published: 2019-02-08

Ariadne auf Naxos
type: MusicAlbum
date published: 2006-10-06

Fidelio
type: MusicAlbum
date published: 2006-10-05

J.Strauss II: Eine Nacht in Venedig/Wiener Blut
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date published: 1989-10-01

Strauss, R.: Der Rosenkavalier
type: MusicAlbum
date published: 1954-01-01

La flûte enchantée
type: MusicAlbum
date published: 2013-11-06
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  additional property: OTSVerificationAPI
    type: PropertyValue
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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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9442130ba8fe25a16db12dd9c45105bb3b1583e48e4cfc0da5b2d0f4ab142270. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/FR60Z0700850.
    date published: 2026-07-13T07:54:01Z
  audio: Ouverture
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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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: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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track: Hm! Hm! Hm! Hm! (Papageno / Tamino / Les Dames)
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e31093d5fa5a353409b92422f6ca8c8c70ace22855f35011ee702602ee09a78. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/FR60Z0700910.
    date published: 2026-07-07T13:52:39Z
  audio: Hm! Hm! Hm! Hm! (Papageno / Tamino / Les Dames)
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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
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
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    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: Liveness
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track: Silberglöckchen (Le chœur)
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  by artist: Herbert von Karajan
  by artist: Wiener Philharmoniker
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  subject of: OpenTimestamps Proof of Existence
  audio: Silberglöckchen (Le chœur)
track: La marche vers la caverne
track: Der Hölle Rache kocht in meinem Herzen (La Reine de la nuit)
track: Triumph! Triumph! (Le chœur)
track: Du feines Taübchen, nur herein (Monostatos / Pamina / Papageno)
track: Nur Stille! (Monostatos / La Reine de la nuit / Les Dames)

OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b987327dc637765e191681981892ad1c031877eb2cfaba5a27471fe110c1c4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR60Z0700920.
date published: 2026-07-07T18:39:05Z

Silberglöckchen (Le chœur)
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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
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additional property: Key Name
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La marche vers la caverne
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duration: PT1M45S
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explicit: false
by artist: Valérie Karsenti
by artist: Herbert von Karajan
by artist: Wiener Philharmoniker
in album: La flûte enchantée
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  date published: 2013-11-06
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d1cac54edab6a971996ce846ffd1de5bc94bce97c0bc98cb8950d882cdbeb9. 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/FR60Z0700970.
  date published: 2026-07-08T03:22:41Z
audio: La marche vers la caverne
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Der Hölle Rache kocht in meinem Herzen (La Reine de la nuit)
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by artist: Valérie Karsenti
by artist: Herbert von Karajan
by artist: Wiener Philharmoniker
by artist: Wilma Lipp
in album: La flûte enchantée
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d586a82f0094afab2127daaf17cd6535143861e52d1b6dccc3424b6e3d10e14. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/FR60Z0700980.
  date published: 2026-07-07T20:41:57Z
audio: Der Hölle Rache kocht in meinem Herzen (La Reine de la nuit)
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Triumph! Triumph! (Le chœur)
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duration: PT1M7S
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by artist: Valérie Karsenti
by artist: Herbert von Karajan
by artist: Wiener Philharmoniker
in album: La flûte enchantée
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  date published: 2013-11-06
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ce16fdcc7c955bc9094df241ea4edf278a61aec31545130247797952ab98f9. 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/FR60Z0701400.
  date published: 2026-07-08T03:22:41Z
audio: Triumph! Triumph! (Le chœur)
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  additional property: Musical Key
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Die Fledermaus
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date published: 2011-09-13
track: Gala Sequence
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  by artist: Vienna Philharmonic
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  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c87cdb6eeb7f03fdf66cd428cf8216a261e57d326474999ca9f60ba01417eb. 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/USX761121819.
    date published: 2026-07-02T03:55:08Z
  audio: Gala Sequence
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    additional property: Danceability
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track: Die Fledermaus, Act II

Puccini: Turandot
type: MusicAlbum
date published: 2015-01-22

Lehár: Die lustige Witwe
type: MusicAlbum
date published: 1958-01-01

Mozart: Die Entführung aus dem Serail; Ouvertüren
type: MusicAlbum
date published: 2018-09-14

Die Meistersinger von Nürnberg
type: MusicAlbum
date published: 2006-10-06

The Magic Flute (Die Zauberflote)
type: MusicAlbum
date published: 2003-06-03