Paul Wolfrum
type: MusicGroup
genre: opera
popularity: 4
followers: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x09cd67968a2d3d56d339fdd70c0b3c74d7d2d5d3bf2a12f19463697d653007f7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c33379f9-89d4-4bdd-a5e9-bbfbc2c984d1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c33379f9-89d4-4bdd-a5e9-bbfbc2c984d1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c33379f9-89d4-4bdd-a5e9-bbfbc2c984d1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x09cd67968a2d3d56d339fdd70c0b3c74d7d2d5d3bf2a12f19463697d653007f7","name":"Paul Wolfrum","registered_at":"2026-06-20T20:15:21Z","symbol":"NIM1703463","token_address":"0x7b43a486c00e16c018790df8ffc52499a64cfbc6","type":"artist","uuid":"c33379f9-89d4-4bdd-a5e9-bbfbc2c984d1"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cd67968a2d3d56d339fdd70c0b3c74d7d2d5d3bf2a12f19463697d653007f7. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c33379f9-89d4-4bdd-a5e9-bbfbc2c984d1.json and https://artists.proofprofile.net/proofs/artist/c33379f9-89d4-4bdd-a5e9-bbfbc2c984d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x09cd67968a2d3d56d339fdd70c0b3c74d7d2d5d3bf2a12f19463697d653007f7","name":"Paul Wolfrum","registered_at":"2026-06-20T20:15:21Z","symbol":"NIM1703463","token_address":"0x7b43a486c00e16c018790df8ffc52499a64cfbc6","type":"artist","uuid":"c33379f9-89d4-4bdd-a5e9-bbfbc2c984d1"}
track: Aufstieg und Fall der Stadt Mahagonny: Act I: Halloh, wir mussen weiter! (Fatty, Moses, Begbick)
  type: MusicRecording
  duration: PT7M49S
  duration ms: 469400
  explicit: false
  by artist: Kurt Weill
  by artist: Thomas Lehrberger
  by artist: Klaus Hirte
  by artist: Anny Schlemm
  by artist: Anja Silja
  by artist: Wolfgang Neumann
  by artist: Frederic Mayer
  by artist: Paul Wolfrum
  by artist: Hans Franzen
  by artist: Cologne Pro Musica Vocal Ensemble
  by artist: Cologne Radio Orchestra
  by artist: Jan Latham-Koenig
  in album: Weill, K.: Aufstieg Und Fall Der Stadt Mahagonny [Opera]
    type: MusicAlbum
    date published: 1988-01-01
  isrc code: US2TL0901001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T17:19:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf5d132a0848d1790dd2df6e30472006a0a731543b47ec2dbab55a3c2963b818c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960284
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960284
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0901001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T17:23:26Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d132a0848d1790dd2df6e30472006a0a731543b47ec2dbab55a3c2963b818c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/US2TL0901001.
    date published: 2026-07-30T17:23:26Z
  audio: Aufstieg und Fall der Stadt Mahagonny: Act I: Halloh, wir mussen weiter! (Fatty, Moses, Begbick)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 151.437
    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: 0.496
    additional property: Energy
      type: PropertyValue
      value: 0.182
    additional property: Speechiness
      type: PropertyValue
      value: 0.208
    additional property: Acousticness
      type: PropertyValue
      value: 0.959
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.245
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.215
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.528
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Aufstieg und Fall der Stadt Mahagonny: Act I: Oh show us the way to the next whisky bar (Jenny, 6 girls)
  type: MusicRecording
  duration: PT5M5S
  duration ms: 305560
  explicit: false
  by artist: Kurt Weill
  by artist: Thomas Lehrberger
  by artist: Klaus Hirte
  by artist: Anny Schlemm
  by artist: Anja Silja
  by artist: Wolfgang Neumann
  by artist: Frederic Mayer
  by artist: Paul Wolfrum
  by artist: Hans Franzen
  by artist: Cologne Pro Musica Vocal Ensemble
  by artist: Cologne Radio Orchestra
  by artist: Jan Latham-Koenig
  in album: Weill, K.: Aufstieg Und Fall Der Stadt Mahagonny [Opera]
    type: MusicAlbum
    date published: 1988-01-01
  isrc code: US2TL0901002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T20:39:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xde2074b3912b8e0597d9dfd1b687a3c89d0df7b266eabfee567a170a7f3efa56
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960314
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960314
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0901002
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T21:00:46Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2074b3912b8e0597d9dfd1b687a3c89d0df7b266eabfee567a170a7f3efa56. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/US2TL0901002.
    date published: 2026-07-30T21:00:46Z
  audio: Aufstieg und Fall der Stadt Mahagonny: Act I: Oh show us the way to the next whisky bar (Jenny, 6 girls)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.781
    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: 0.382
    additional property: Energy
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: Aufstieg und Fall der Stadt Mahagonny: Act I: Wir wohnen in den Stadten (Male Chorus, Fatty, Moses )
track: Aufstieg und Fall der Stadt Mahagonny: Act I: Auf nach Mahagonny (Jim, Jack, Bill, Joe)
track: Aufstieg und Fall der Stadt Mahagonny: Act I: Wenn man an einen fremden Strand kommt (Jim, Jack, Bill, Joe, Begbick, 6 girls)

Energy
type: PropertyValue
value: 0.091

Speechiness
type: PropertyValue
value: 0.04

Acousticness
type: PropertyValue
value: 0.962

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.217

Valence (Positivity)
type: PropertyValue
value: 0.182

Loudness (dB)
type: PropertyValue
value: -21.763

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Aufstieg und Fall der Stadt Mahagonny: Act I: Wir wohnen in den Stadten (Male Chorus, Fatty, Moses )
type: MusicRecording
duration: PT5M6S
duration ms: 306106
explicit: false
by artist: Kurt Weill
by artist: Thomas Lehrberger
by artist: Klaus Hirte
by artist: Anny Schlemm
by artist: Anja Silja
by artist: Wolfgang Neumann
by artist: Frederic Mayer
by artist: Paul Wolfrum
by artist: Hans Franzen
by artist: Cologne Pro Musica Vocal Ensemble
by artist: Cologne Radio Orchestra
by artist: Jan Latham-Koenig
in album: Weill, K.: Aufstieg Und Fall Der Stadt Mahagonny [Opera]
  type: MusicAlbum
  date published: 1988-01-01
isrc code: US2TL0901003
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T21:34:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x502bad565fa85be573c92e0783b6b5b54bb0081db2481df915c06ebe5d2b9e7d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960481
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960481
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0901003
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:51:35Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502bad565fa85be573c92e0783b6b5b54bb0081db2481df915c06ebe5d2b9e7d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/US2TL0901003.
  date published: 2026-07-31T23:51:35Z
audio: Aufstieg und Fall der Stadt Mahagonny: Act I: Wir wohnen in den Stadten (Male Chorus, Fatty, Moses )
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.938
  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: 0.345
  additional property: Energy
    type: PropertyValue
    value: 0.062
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.957
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.138
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.311
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Aufstieg und Fall der Stadt Mahagonny: Act I: Auf nach Mahagonny (Jim, Jack, Bill, Joe)
type: MusicRecording
duration: PT2M7S
duration ms: 127666
explicit: false
by artist: Kurt Weill
by artist: Thomas Lehrberger
by artist: Klaus Hirte
by artist: Anny Schlemm
by artist: Anja Silja
by artist: Wolfgang Neumann
by artist: Frederic Mayer
by artist: Paul Wolfrum
by artist: Hans Franzen
by artist: Cologne Pro Musica Vocal Ensemble
by artist: Cologne Radio Orchestra
by artist: Jan Latham-Koenig
in album: Weill, K.: Aufstieg Und Fall Der Stadt Mahagonny [Opera]
  type: MusicAlbum
  date published: 1988-01-01
isrc code: US2TL0901004
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:01:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x525cc754ea41abf253c71607dc649dc0cac6672ca138e6c5fa54dda0f72c5b8b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0901004
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525cc754ea41abf253c71607dc649dc0cac6672ca138e6c5fa54dda0f72c5b8b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/US2TL0901004.
  date published: 2026-07-31T12:24:41Z
audio: Aufstieg und Fall der Stadt Mahagonny: Act I: Auf nach Mahagonny (Jim, Jack, Bill, Joe)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 165.171
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.474
  additional property: Energy
    type: PropertyValue
    value: 0.387
  additional property: Speechiness
    type: PropertyValue
    value: 0.12
  additional property: Acousticness
    type: PropertyValue
    value: 0.957
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.159
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.633
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.623
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Aufstieg und Fall der Stadt Mahagonny: Act I: Wenn man an einen fremden Strand kommt (Jim, Jack, Bill, Joe, Begbick, 6 girls)
type: MusicRecording
duration: PT8M11S
duration ms: 491200
explicit: false
by artist: Kurt Weill
by artist: Thomas Lehrberger
by artist: Klaus Hirte
by artist: Anny Schlemm
by artist: Anja Silja
by artist: Wolfgang Neumann
by artist: Frederic Mayer
by artist: Paul Wolfrum
by artist: Hans Franzen
by artist: Cologne Pro Musica Vocal Ensemble
by artist: Cologne Radio Orchestra
by artist: Jan Latham-Koenig
in album: Weill, K.: Aufstieg Und Fall Der Stadt Mahagonny [Opera]
  type: MusicAlbum
  date published: 1988-01-01
isrc code: US2TL0901005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T14:05:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x414ece0dff5a8509622a06469dd3013552d77c780d1b911b7dc9e36507a02339
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: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0901005
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414ece0dff5a8509622a06469dd3013552d77c780d1b911b7dc9e36507a02339. 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/US2TL0901005.
  date published: 2026-07-31T15:20:15Z
audio: Aufstieg und Fall der Stadt Mahagonny: Act I: Wenn man an einen fremden Strand kommt (Jim, Jack, Bill, Joe, Begbick, 6 girls)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.246
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.542
  additional property: Energy
    type: PropertyValue
    value: 0.206
  additional property: Speechiness
    type: PropertyValue
    value: 0.106
  additional property: Acousticness
    type: PropertyValue
    value: 0.925
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.37
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.296
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.907
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor