Kurt Weill
type: MusicGroup
genre: opera
description: Kurt Julian Weill (; ; March 2, 1900April 3, 1950) was a German-born American composerThe editors of Encyclopædia Britannica. active from the 1920s in his native country, and in his later years in th
popularity: 37
followers: 26759
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album: Weill: Die sieben Todsünden & Chansons
  type: MusicAlbum
  date published: 2007-07-31
album: Kurt Weill: Symphony No. 2 & Violin Concerto, Op.12
  type: MusicAlbum
  date published: 2022-07-15
album: Weill, Brecht: Die sieben Todsünden
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  date published: 2015-11-01
  track: Die sieben Todsünden: Stolz. Allegretto, quasi andantino (Anna I and Family)
  track: Die sieben Todsünden: Zorn. Molto agitato (Anna I, Anna II and Family)
  track: Die sieben Todsünden: Unzucht. Moderato (Anna I, Anna II and Family)
  track: Die sieben Todsünden: Neid. Allegro non troppo (Anna I and Family)
  track: Happy End: Surabaya - Johnny
  track: Die sieben Todsünden: Prologue. Andante sostenuto (Anna I and Anna II)
  track: Die sieben Todsünden: Faulheit. Allegro vivace (Family)
  track: Die sieben Todsünden: Völlerei. Largo (Family)
  track: Die sieben Todsünden: Epilogue. Andante sostenuto (Anna I and Anna II)
  track: Die sieben Todsünden: Vom ertrunkenen Mädchen
album: Weill, K.: Jasager (Der) [Opera]
  type: MusicAlbum
  date published: 1991-01-01
album: Weill: Eternal Road (The) (Highlights)
  type: MusicAlbum
  date published: 2003-09-25
album: Weill, K.: Protagonist (Der) [Opera]
  type: MusicAlbum
  date published: 2001-01-01
album: The Road of Promise (Live)
  type: MusicAlbum
  date published: 2016-11-18
album: Kurt Weill: Der Silbersee
  type: MusicAlbum
  date published: 1990-01-01
album: Weill, K.: Songs & Symphony No. 2
  type: MusicAlbum
  date published: 2005-03-01
album: Lost to the World
  type: MusicAlbum
  date published: 2026-03-06
track: Marie Galante: Youkali
track: September Song
track: Mack the Knife
track: Die Dreigroschenoper: Die Morität von Mackie Messer
track: Mack The Knife (also known as 'Moritat' from 'The Threepenny Opera')
track: Youkali
track: Tango Habanera "Youkali"
track: Die Dreigroschenoper: Barbara-Song
track: Mackie Messer (aus der "Dreigroschenoper")
track: Lost in the Stars

Die sieben Todsünden: Stolz. Allegretto, quasi andantino (Anna I and Family)
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  date published: 2026-07-08T03:20:19Z
audio: Die sieben Todsünden: Stolz. Allegretto, quasi andantino (Anna I and Family)
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Die sieben Todsünden: Zorn. Molto agitato (Anna I, Anna II and Family)
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  date published: 2026-07-08T03:53:27Z
audio: Die sieben Todsünden: Zorn. Molto agitato (Anna I, Anna II and Family)
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Die sieben Todsünden: Unzucht. Moderato (Anna I, Anna II and Family)
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  date published: 2026-07-08T08:56:20Z
audio: Die sieben Todsünden: Unzucht. Moderato (Anna I, Anna II and Family)
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Die sieben Todsünden: Neid. Allegro non troppo (Anna I and Family)
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Happy End: Surabaya - Johnny
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  date published: 2026-07-08T03:22:41Z
audio: Happy End: Surabaya - Johnny
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.029
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.505
  additional property: Energy
    type: PropertyValue
    value: 0.192
  additional property: Speechiness
    type: PropertyValue
    value: 0.167
  additional property: Acousticness
    type: PropertyValue
    value: 0.761
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.07
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.497
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.59
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Die sieben Todsünden: Prologue. Andante sostenuto (Anna I and Anna II)
type: MusicRecording
duration: PT3M26S
duration ms: 206000
explicit: false
by artist: Kurt Weill
by artist: Rundfunk-Sinfonieorchester Leipzig
by artist: Herbert Kegel
by artist: Gisela May
by artist: Peter Schreier
in album: Weill, Brecht: Die sieben Todsünden
  type: MusicAlbum
  date published: 2015-11-01
popularity: 5
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9af4df365275d515f2fc373de370e81476ac0b926bd36790b348a4b67479eca. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331510772.
  date published: 2026-07-30T02:30:29Z
audio: Die sieben Todsünden: Prologue. Andante sostenuto (Anna I and Anna II)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 146.523
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.405
  additional property: Energy
    type: PropertyValue
    value: 0.101
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.904
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.268
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.161
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.944
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: NLY331510772
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/NLY331510772
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

Die sieben Todsünden: Faulheit. Allegro vivace (Family)
type: MusicRecording
duration: PT4M25S
duration ms: 265000
explicit: false
by artist: Kurt Weill
by artist: Rundfunk-Sinfonieorchester Leipzig
by artist: Herbert Kegel
by artist: Gisela May
by artist: Peter Schreier
by artist: Gunther Leib
by artist: Hermann Christian Polster
in album: Weill, Brecht: Die sieben Todsünden
  type: MusicAlbum
  date published: 2015-11-01
popularity: 5
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4720cbae5b1f458f301a7fbe98583f82205204781dd3e99a56cf3abe3cb3da4d. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/NLY331510773.
  date published: 2026-07-30T08:30:10Z
audio: Die sieben Todsünden: Faulheit. Allegro vivace (Family)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.238
  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: 0.313
  additional property: Energy
    type: PropertyValue
    value: 0.322
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.953
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.099
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.177
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.088
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: NLY331510773
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: 960229
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T08:30:10+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331510773
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960229
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:30:10+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 sieben Todsünden: Völlerei. Largo (Family)
type: MusicRecording
duration: PT3M12S
duration ms: 192000
explicit: false
by artist: Kurt Weill
by artist: Rundfunk-Sinfonieorchester Leipzig
by artist: Herbert Kegel
by artist: Gisela May
by artist: Peter Schreier
by artist: Gunther Leib
by artist: Hermann Christian Polster
in album: Weill, Brecht: Die sieben Todsünden
  type: MusicAlbum
  date published: 2015-11-01
popularity: 2
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e2f4822520ca2c858e5f00110da0a550fa5cc62ddbc1019493e90d32309573. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLY331510776.
  date published: 2026-07-31T02:19:15Z
audio: Die sieben Todsünden: Völlerei. Largo (Family)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.723
  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: 0.315
  additional property: Energy
    type: PropertyValue
    value: 0.19
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.157
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.232
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.032
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: NLY331510776
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: 960334
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T02:19:15+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331510776
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15+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

Die sieben Todsünden: Epilogue. Andante sostenuto (Anna I and Anna II)
type: MusicRecording
duration: PT1M46S
duration ms: 106640
explicit: false
by artist: Kurt Weill
by artist: Rundfunk-Sinfonieorchester Leipzig
by artist: Herbert Kegel
by artist: Gisela May
by artist: Peter Schreier
by artist: Gunther Leib
by artist: Hermann Christian Polster
in album: Weill, Brecht: Die sieben Todsünden
  type: MusicAlbum
  date published: 2015-11-01
popularity: 1
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f260791b02adef239790053c28b8b2092ddc1a9dfa0eff5688a1f55a5c7ec4d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331510780.
  date published: 2026-07-31T15:59:18Z
audio: Die sieben Todsünden: Epilogue. Andante sostenuto (Anna I and Anna II)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.553
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.324
  additional property: Energy
    type: PropertyValue
    value: 0.046
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.944
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.126
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.929
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: NLY331510780
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: 960427
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T15:59:18+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331510780
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: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:59:18+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 sieben Todsünden: Vom ertrunkenen Mädchen
type: MusicRecording
duration: PT2M30S
duration ms: 150000
explicit: false
by artist: Kurt Weill
by artist: Studio-Männerchor
by artist: Studio-Orchester
by artist: Henry Krtschil
in album: Weill, Brecht: Die sieben Todsünden
  type: MusicAlbum
  date published: 2015-11-01
popularity: 1
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c2d66ecdb327abd6a4344bf453ea8dfbfa3d8e985b023f092d9902c73fa332. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331510781.
  date published: 2026-07-31T09:25:34Z
audio: Die sieben Todsünden: Vom ertrunkenen Mädchen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.906
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.499
  additional property: Energy
    type: PropertyValue
    value: 0.047
  additional property: Speechiness
    type: PropertyValue
    value: 0.065
  additional property: Acousticness
    type: PropertyValue
    value: 0.907
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.079
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.266
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.878
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: NLY331510781
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: 960379
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T09:25:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331510781
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960379
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960379
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:25:34+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

Marie Galante: Youkali
type: MusicRecording
duration: PT4M14S
duration ms: 254693
explicit: false
by artist: Kurt Weill
by artist: Marion Rampal
by artist: Quatuor Manfred
by artist: Raphaël Imbert
in album: Bye-bye Berlin
  type: MusicAlbum
  date published: 2018-06-29
popularity: 14
isrc code: FR7JM1669010
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T04:06:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7209dde806c847e7a5e5f22c74810395c54a7b8da36f3eb8f842953b006b4a59
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1669010
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7209dde806c847e7a5e5f22c74810395c54a7b8da36f3eb8f842953b006b4a59. 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/FR7JM1669010.
  date published: 2026-07-02T03:55:08Z
audio: Marie Galante: Youkali
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.079
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.295
  additional property: Energy
    type: PropertyValue
    value: 0.046
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.341
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.216
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.164
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

September Song
type: MusicRecording
duration: PT3M30S
duration ms: 210582
explicit: false
by artist: Maxwell Anderson
by artist: Kurt Weill
by artist: Danish National Symphony Orchestra
by artist: DR Big Band
by artist: Tuva Semmingsen
by artist: Klaus Tönshoff
in album: Divas & Diamonds
  type: MusicAlbum
  date published: 2021-04-30
popularity: 11
isrc code: DEU901501329
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:49:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa160565ba02ce7df7907070baa636ad285dae4efac37c933ec7d093c7c13d9fa
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/DEU901501329
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa160565ba02ce7df7907070baa636ad285dae4efac37c933ec7d093c7c13d9fa. 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/DEU901501329.
  date published: 2026-07-08T03:22:41Z
audio: September Song
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.089
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.357
  additional property: Energy
    type: PropertyValue
    value: 0.098
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.099
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.14
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.712
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mack the Knife
type: MusicRecording
duration: PT3M19S
duration ms: 199573
explicit: false
by artist: Bertolt Brecht
by artist: Kurt Weill
by artist: Marc Blitzstein
by artist: Louis Armstrong
in album: The Greatest Jazz-Hits
  type: MusicAlbum
  date published: 2013-09-27
popularity: 6
isrc code: USSM16700281
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T08:53:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78669d9d66f4bc1f66cbbab235276efa81b44bcf435d2597f5a81a08a2113926
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM16700281
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78669d9d66f4bc1f66cbbab235276efa81b44bcf435d2597f5a81a08a2113926. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM16700281.
  date published: 2026-07-02T05:09:12Z
audio: Mack the Knife
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.294
  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: 0.662
  additional property: Energy
    type: PropertyValue
    value: 0.383
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.663
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.251
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.793
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.01
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Dreigroschenoper: Die Morität von Mackie Messer
type: MusicRecording
duration: PT4M42S
duration ms: 282360
explicit: false
by artist: Kurt Weill
by artist: Marion Rampal
by artist: Quatuor Manfred
by artist: Raphaël Imbert
in album: Bye-bye Berlin
  type: MusicAlbum
  date published: 2018-06-29
popularity: 4
isrc code: FR7JM1669030
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:47:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4643dc0dd027ebb5630ae34a4b5cee6f05a4f68e1f0caaab1af10a1902d98f94
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1669030
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957124
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:53:27+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4643dc0dd027ebb5630ae34a4b5cee6f05a4f68e1f0caaab1af10a1902d98f94. 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/FR7JM1669030.
  date published: 2026-07-08T03:53:27Z
audio: Die Dreigroschenoper: Die Morität von Mackie Messer
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 149.38
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.307
  additional property: Energy
    type: PropertyValue
    value: 0.105
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.219
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.113
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.071
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mack The Knife (also known as 'Moritat' from 'The Threepenny Opera')
type: MusicRecording
duration: PT2M18S
duration ms: 138066
explicit: false
by artist: Kurt Weill
by artist: Eugen Berthold Brecht
by artist: The Clebanoff Strings And Orchestra
in album: The Golden Age of Light Music: Light and Easy
  type: MusicAlbum
  date published: 2011-11-30
popularity: 3
isrc code: CH6631158702
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:15:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81980657fbfe60c93d72ceb4437005e703f18964a6f6338b1a415603c54d27cd
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/CH6631158702
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81980657fbfe60c93d72ceb4437005e703f18964a6f6338b1a415603c54d27cd. 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/CH6631158702.
  date published: 2026-07-08T03:20:19Z
audio: Mack The Knife (also known as 'Moritat' from 'The Threepenny Opera')
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.176
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.156
  additional property: Energy
    type: PropertyValue
    value: 0.276
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.778
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.214
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.192
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.448
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Youkali
type: MusicRecording
duration: PT4M29S
duration ms: 269853
explicit: false
by artist: Kurt Weill
by artist: Daniel Hope
by artist: Christoph Israel
in album: Hope@Home
  type: MusicAlbum
  date published: 2020-08-14
popularity: 6
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9e0246992b50590db37c852717fecb1877e80d96590a0f9933de204cf52a63. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962030307.
  date published: 2026-07-29T14:28:24Z
audio: Youkali
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 171.122
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.247
  additional property: Energy
    type: PropertyValue
    value: 0.191
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.014
  additional property: Liveness
    type: PropertyValue
    value: 0.149
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.275
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.492
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: DEN962030307
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: 960117
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T14:28:24+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962030307
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960117
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960117
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T14:28:24+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Tango Habanera "Youkali"
type: MusicRecording
duration: PT5M12S
duration ms: 312786
explicit: false
by artist: Kurt Weill
by artist: David Fruhwirth
by artist: Henri Sigfridsson
in album: Short Stories - A Collection of Romantic Violin Pieces
  type: MusicAlbum
  date published: 2006-06-11
popularity: 3
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c936adaad8f664086c94afb1eb4d2e52fc5b80e1cd4196750ec1b7cc956147. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBELX0400754.
  date published: 2026-07-30T18:23:33Z
audio: Tango Habanera "Youkali"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.125
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.243
  additional property: Energy
    type: PropertyValue
    value: 0.043
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.12
  additional property: Liveness
    type: PropertyValue
    value: 0.07
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.14
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.683
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: GBELX0400754
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: 960291
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T18:23:33+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX0400754
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960291
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960291
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T18:23:33+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 Dreigroschenoper: Barbara-Song
type: MusicRecording
duration: PT4M37S
duration ms: 277866
explicit: false
by artist: Kurt Weill
by artist: Marion Rampal
by artist: Quatuor Manfred
by artist: Raphaël Imbert
in album: Bye-bye Berlin
  type: MusicAlbum
  date published: 2018-06-29
popularity: 3
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe796efc8d08f33de6f31271dba99d502dab9c166ea7ddd8068d3bafa92380808. 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/FR7JM1669040.
  date published: 2026-07-31T15:20:15Z
audio: Die Dreigroschenoper: Barbara-Song
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.746
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.495
  additional property: Energy
    type: PropertyValue
    value: 0.089
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.936
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.232
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.323
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.334
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: FR7JM1669040
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/FR7JM1669040
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

Mackie Messer (aus der "Dreigroschenoper")
type: MusicRecording
duration: PT3M10S
duration ms: 190666
explicit: false
by artist: Kurt Weill
by artist: Gisela May
in album: Das Lied von der May
  type: MusicAlbum
  date published: 2012-11-02
popularity: 3
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ed0146d68de45510a010ea84c30de238c60d53b879956dbd111f8778c578d0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC730900395.
  date published: 2026-07-29T19:35:34Z
audio: Mackie Messer (aus der "Dreigroschenoper")
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.126
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.417
  additional property: Energy
    type: PropertyValue
    value: 0.341
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.901
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.132
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.386
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.438
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: DEC730900395
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: 960138
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC730900395
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34+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

Lost in the Stars
type: MusicRecording
duration: PT4M5S
duration ms: 245720
explicit: false
by artist: Kurt Weill
by artist: Daniel Hope
by artist: Jacques Ammon
in album: Hope@Home
  type: MusicAlbum
  date published: 2020-08-14
popularity: 3
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc400d12058bd1e5cca336eb3686dd95a576825d88fe3ab5527a601a214e331e7. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962030321.
  date published: 2026-07-30T12:45:34Z
audio: Lost in the Stars
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.175
  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: 0.269
  additional property: Energy
    type: PropertyValue
    value: 0.172
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.59
  additional property: Liveness
    type: PropertyValue
    value: 0.439
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.06
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.269
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: DEN962030321
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: 960258
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T12:45:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962030321
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960258
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960258
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T12:45:34+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