Svetla Vassileva
type: MusicGroup
genre: opera
popularity: 17
followers: 202
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xab457a09020490687c44fc16f4f369aacc95c0e54d3777817015db8a46bbcd92
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953612
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953612
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/17572e9e-bbef-4d73-a7f4-7295cd536263.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/17572e9e-bbef-4d73-a7f4-7295cd536263.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/17572e9e-bbef-4d73-a7f4-7295cd536263
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T08:22:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xab457a09020490687c44fc16f4f369aacc95c0e54d3777817015db8a46bbcd92","name":"Svetla Vassileva","registered_at":"2026-06-14T06:51:55Z","symbol":"NIM0372747","token_address":"0xb691250e95e2d93aac323daa0e6e50cb00f9306d","type":"artist","uuid":"17572e9e-bbef-4d73-a7f4-7295cd536263"}
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 0xab457a09020490687c44fc16f4f369aacc95c0e54d3777817015db8a46bbcd92. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17572e9e-bbef-4d73-a7f4-7295cd536263.json and https://artists.proofprofile.net/proofs/artist/17572e9e-bbef-4d73-a7f4-7295cd536263.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T08:22:11Z
  text: {"copyright_id":"0xab457a09020490687c44fc16f4f369aacc95c0e54d3777817015db8a46bbcd92","name":"Svetla Vassileva","registered_at":"2026-06-14T06:51:55Z","symbol":"NIM0372747","token_address":"0xb691250e95e2d93aac323daa0e6e50cb00f9306d","type":"artist","uuid":"17572e9e-bbef-4d73-a7f4-7295cd536263"}
album: Verdi: Giovanna d'Arco
  type: MusicAlbum
  date published: 2014-02-11
album: Verdi: La Traviata
  type: MusicAlbum
  date published: 2014-03-25
album: Puccini, G.: Rondine (La) [Opera]
  type: MusicAlbum
  date published: 2009-08-25
  track: La Rondine: Act I: Prelude
    type: MusicRecording
    duration: PT0M54S
    duration ms: 54440
    explicit: false
    by artist: Giacomo Puccini
    by artist: Svetla Vassileva
    by artist: Maya Dashuk
    by artist: Fabio Sartori
    by artist: Emanuele Giannino
    by artist: Marzio Giossi
    by artist: Fernando Luis Ciuffo
    by artist: Giorgio Berrugi
    by artist: Andrea Patucelli
    by artist: Polina Volfson
    by artist: Alessandra Meozzi
    by artist: Annunziata Vestri
    by artist: Puccini Festival Chorus
    by artist: Puccini Festival Orchestra
    by artist: Alberto Veronesi
    in album: Puccini, G.: Rondine (La) [Opera]
      type: MusicAlbum
      date published: 2009-08-25
    isrc code: HKI190871301
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T05:51:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa6096acfac4a5c0c3b9f7198a14c313e5c5ddb3572544fadc59ae9d70da74f56
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960360
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960360
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190871301
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T06:42:11Z
    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 0xa6096acfac4a5c0c3b9f7198a14c313e5c5ddb3572544fadc59ae9d70da74f56. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190871301 — a six-check JSON result.
      date published: 2026-07-31T06:42:11Z
    audio: La Rondine: Act I: Prelude
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.723
      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: 0.453
      additional property: Energy
        type: PropertyValue
        value: 0.162
      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
        value: 0.945
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.911
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.473
      additional property: Loudness (dB)
        type: PropertyValue
        value: -23.055
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: La Rondine: Act I: Chi il bel sogno di Doretta (Prunier, Magda)
    type: MusicRecording
    duration: PT5M1S
    duration ms: 301466
    explicit: false
    by artist: Giacomo Puccini
    by artist: Svetla Vassileva
    by artist: Maya Dashuk
    by artist: Fabio Sartori
    by artist: Emanuele Giannino
    by artist: Marzio Giossi
    by artist: Fernando Luis Ciuffo
    by artist: Giorgio Berrugi
    by artist: Andrea Patucelli
    by artist: Polina Volfson
    by artist: Alessandra Meozzi
    by artist: Annunziata Vestri
    by artist: Puccini Festival Chorus
    by artist: Puccini Festival Orchestra
    by artist: Alberto Veronesi
    in album: Puccini, G.: Rondine (La) [Opera]
      type: MusicAlbum
      date published: 2009-08-25
    isrc code: HKI190871303
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-11T03:56:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x92f80463c28f751022fca38de1eef2ec358e39de61eb144d888bbb08fa575939
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 953520
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/953520
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190871303
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T13:32:09Z
    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 0x92f80463c28f751022fca38de1eef2ec358e39de61eb144d888bbb08fa575939. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190871303 — a six-check JSON result.
      date published: 2026-06-13T13:32:09Z
    audio: La Rondine: Act I: Chi il bel sogno di Doretta (Prunier, Magda)
  track: La Rondine: Act I: …Forse come la rondine (Magda)
  track: La Rondine: Act III: Non maledire, ascolta (Magda, Ruggero)
  track: La Rondine: Act II: Bevo al tuo fresco sorriso (Ruggero, Magda, Lisette, Prunier, Chorus)
album: Gomes: Lo schiavo (Live)
album: Verdi: Falstaff
album: Rachmaninoff: Spring, Three Russian Songs & The Bells
album: Rachmaninoff: Aleko
album: Rachmaninoff: Francesca da Rimini
album: Smareglia: Nozze istriane

La Rondine: Act I: Chi il bel sogno di Doretta (Prunier, Magda)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 105.016
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: 0.25
additional property: Energy
  type: PropertyValue
  value: 0.273
additional property: Speechiness
  type: PropertyValue
  value: 0.141
additional property: Acousticness
  type: PropertyValue
  value: 0.948
additional property: Instrumentalness
  type: PropertyValue
  value: 0.003
additional property: Liveness
  type: PropertyValue
  value: 0.712
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.167
additional property: Loudness (dB)
  type: PropertyValue
  value: -19.864
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

La Rondine: Act I: …Forse come la rondine (Magda)
type: MusicRecording
duration: PT1M7S
duration ms: 67986
explicit: false
by artist: Giacomo Puccini
by artist: Svetla Vassileva
by artist: Maya Dashuk
by artist: Fabio Sartori
by artist: Emanuele Giannino
by artist: Marzio Giossi
by artist: Fernando Luis Ciuffo
by artist: Giorgio Berrugi
by artist: Andrea Patucelli
by artist: Polina Volfson
by artist: Alessandra Meozzi
by artist: Annunziata Vestri
by artist: Puccini Festival Chorus
by artist: Puccini Festival Orchestra
by artist: Alberto Veronesi
in album: Puccini, G.: Rondine (La) [Opera]
  type: MusicAlbum
  date published: 2009-08-25
isrc code: HKI190871314
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T19:04:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb56f1cdb7a4387877092e39d674cfce9b846396a44de67a8e4fed3f52c0cef9d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190871314
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
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 0xb56f1cdb7a4387877092e39d674cfce9b846396a44de67a8e4fed3f52c0cef9d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190871314 — a six-check JSON result.
  date published: 2026-06-13T12:53:06Z
audio: La Rondine: Act I: …Forse come la rondine (Magda)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.402
  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: 0.294
  additional property: Energy
    type: PropertyValue
    value: 0.094
  additional property: Speechiness
    type: PropertyValue
    value: 0.068
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.259
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.034
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.296
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

La Rondine: Act III: Non maledire, ascolta (Magda, Ruggero)
type: MusicRecording
duration: PT2M31S
duration ms: 151280
explicit: false
by artist: Giacomo Puccini
by artist: Svetla Vassileva
by artist: Maya Dashuk
by artist: Fabio Sartori
by artist: Emanuele Giannino
by artist: Marzio Giossi
by artist: Fernando Luis Ciuffo
by artist: Giorgio Berrugi
by artist: Andrea Patucelli
by artist: Polina Volfson
by artist: Alessandra Meozzi
by artist: Annunziata Vestri
by artist: Puccini Festival Chorus
by artist: Puccini Festival Orchestra
by artist: Alberto Veronesi
in album: Puccini, G.: Rondine (La) [Opera]
  type: MusicAlbum
  date published: 2009-08-25
isrc code: HKI190871414
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T22:41:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7aa4d859bba937896cb632d6b4de253bcf8fd855d47c89bc13c3180f0c788d65
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/HKI190871414
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x7aa4d859bba937896cb632d6b4de253bcf8fd855d47c89bc13c3180f0c788d65. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190871414 — a six-check JSON result.
  date published: 2026-07-02T03:30:09Z
audio: La Rondine: Act III: Non maledire, ascolta (Magda, Ruggero)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.486
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.265
  additional property: Energy
    type: PropertyValue
    value: 0.411
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.405
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.236
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.081
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Rondine: Act II: Bevo al tuo fresco sorriso (Ruggero, Magda, Lisette, Prunier, Chorus)
type: MusicRecording
duration: PT3M10S
duration ms: 190680
explicit: false
by artist: Giacomo Puccini
by artist: Svetla Vassileva
by artist: Maya Dashuk
by artist: Fabio Sartori
by artist: Emanuele Giannino
by artist: Marzio Giossi
by artist: Fernando Luis Ciuffo
by artist: Giorgio Berrugi
by artist: Andrea Patucelli
by artist: Polina Volfson
by artist: Alessandra Meozzi
by artist: Annunziata Vestri
by artist: Puccini Festival Chorus
by artist: Puccini Festival Orchestra
by artist: Alberto Veronesi
in album: Puccini, G.: Rondine (La) [Opera]
  type: MusicAlbum
  date published: 2009-08-25
isrc code: HKI190871326
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T20:56:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4e4ffa3f4b1d1056e50e91baad3b63f4aba7b7812843cae7c51c44a611d5a1d3
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/HKI190871326
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x4e4ffa3f4b1d1056e50e91baad3b63f4aba7b7812843cae7c51c44a611d5a1d3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190871326 — a six-check JSON result.
  date published: 2026-07-02T03:30:09Z
audio: La Rondine: Act II: Bevo al tuo fresco sorriso (Ruggero, Magda, Lisette, Prunier, Chorus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.859
  additional property: Musical Key
    type: PropertyValue
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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: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Liveness
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    value: 0.924
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.47
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.333
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Gomes: Lo schiavo (Live)
type: MusicAlbum
date published: 2019-10-18

Verdi: Falstaff
type: MusicAlbum
date published: 2014-04-16

Rachmaninoff: Spring, Three Russian Songs & The Bells
type: MusicAlbum
date published: 2011-11-01

Rachmaninoff: Aleko
type: MusicAlbum
date published: 2010-04-01
track: Aleko: Introduction
  type: MusicRecording
  duration: PT1M58S
  duration ms: 118373
  explicit: false
  by artist: Sergei Rachmaninoff
  by artist: Gianandrea Noseda
  by artist: BBC Philharmonic Orchestra
  in album: Rachmaninoff: Aleko
    type: MusicAlbum
    date published: 2010-04-01
  genre: classical
  genre: classical-piano
  genre: concerto
  isrc code: GBLWD1001601
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-17T22:19:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x80fc22fa93a7672915bb6d3c83fbb0c91a7b7818005f8e3aa65da614b12b2baa
  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/GBLWD1001601
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 0x80fc22fa93a7672915bb6d3c83fbb0c91a7b7818005f8e3aa65da614b12b2baa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1001601 — a six-check JSON result.
    date published: 2026-07-02T03:30:09Z
  audio: Aleko: Introduction
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 93.77
    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: 0.137
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
      value: 0.047
    additional property: Acousticness
      type: PropertyValue
      value: 0.966
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.276
    additional property: Liveness
      type: PropertyValue
      value: 0.071
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.04
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.55
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Aleko: Chorus. As Dear as Freedom is Our Happy Encampment (Gypsies)
  type: MusicRecording
  duration: PT4M3S
  duration ms: 243733
  explicit: false
  by artist: Sergei Rachmaninoff
  by artist: Gianandrea Noseda
  by artist: Coro del Teatro Regio di Torino
  by artist: Evgeny Akimov
  by artist: BBC Philharmonic Orchestra
  in album: Rachmaninoff: Aleko
    type: MusicAlbum
    date published: 2010-04-01
  genre: classical
  genre: classical-piano
  genre: concerto
  isrc code: GBLWD1001602
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T11:44:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x44d1f40bac40846ead04c8401d2bfc67b97337cbfb4af88d2cab5f822f10a8d5
  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/GBLWD1001602
  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 0x44d1f40bac40846ead04c8401d2bfc67b97337cbfb4af88d2cab5f822f10a8d5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1001602 — a six-check JSON result.
    date published: 2026-07-31T12:24:41Z
  audio: Aleko: Chorus. As Dear as Freedom is Our Happy Encampment (Gypsies)
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 174.267
    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
      value: 0.141
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.043
    additional property: Loudness (dB)
      type: PropertyValue
      value: -29.589
    additional property: Key Name
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      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Aleko: The Old Gypsy's Tale. The Magic Power of Song (Old Gypsy, Gypsies)
  type: MusicRecording
  duration: PT4M54S
  duration ms: 294600
  explicit: false
  by artist: Sergei Rachmaninoff
  by artist: Gianandrea Noseda
  by artist: Gennady Bezzubenkov
  by artist: Coro del Teatro Regio di Torino
  by artist: BBC Philharmonic Orchestra
  in album: Rachmaninoff: Aleko
    type: MusicAlbum
    date published: 2010-04-01
  genre: classical
  genre: classical-piano
  genre: concerto
  isrc code: GBLWD1001603
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Aleko: The Old Gypsy's Tale. The Magic Power of Song (Old Gypsy, Gypsies)
track: Aleko: Scene and Chorus. But Why Did You Not Immediately Hasten After the Thankless Wretch (Aleko, Zemfira, Young Gypsy, Gypsies)
track: Aleko: Women's Dance
track: Aleko: Men's Dance
track: Aleko: Aleko's Cavatina. The Whole Camp Sleeps (Aleko)
track: Aleko: Young Gypsy's Romance. Look How Beneath the Distant Vault of Heaven (Young Gypsy)
track: Aleko: Duet and Finale. It's Time to Go, My Love, It's Time! (Zemfira, Young Gypsy, Aleko)

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T13:07:36+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xcb97d60203b9459df922c37c3138e99882aa2c74a1d34fdd96282d3822bd4078

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1001603

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

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb97d60203b9459df922c37c3138e99882aa2c74a1d34fdd96282d3822bd4078. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1001603 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Aleko: The Old Gypsy's Tale. The Magic Power of Song (Old Gypsy, Gypsies)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 109.94
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: 0.219
additional property: Energy
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additional property: Speechiness
  type: PropertyValue
  value: 0.046
additional property: Acousticness
  type: PropertyValue
  value: 0.948
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
  type: PropertyValue
  value: -28.011
additional property: Key Name
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additional property: Mode Name
  type: PropertyValue
  value: Minor

Aleko: Scene and Chorus. But Why Did You Not Immediately Hasten After the Thankless Wretch (Aleko, Zemfira, Young Gypsy, Gypsies)
type: MusicRecording
duration: PT1M57S
duration ms: 117733
explicit: false
by artist: Sergei Rachmaninoff
by artist: Gianandrea Noseda
by artist: Sergey Murzaev
by artist: Svetla Vassileva
by artist: Evgeny Akimov
by artist: Gennady Bezzubenkov
by artist: Coro del Teatro Regio di Torino
by artist: BBC Philharmonic Orchestra
in album: Rachmaninoff: Aleko
  type: MusicAlbum
  date published: 2010-04-01
genre: classical
genre: classical-piano
genre: concerto
isrc code: GBLWD1001604
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T22:02:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1fcda3ea943a87bcd359c6998d083433e430dbaf749a068b4e1c68e35f8cfb8e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960473
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960473
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1001604
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T22:27:44Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcda3ea943a87bcd359c6998d083433e430dbaf749a068b4e1c68e35f8cfb8e. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1001604 — a six-check JSON result.
  date published: 2026-07-31T22:27:44Z
audio: Aleko: Scene and Chorus. But Why Did You Not Immediately Hasten After the Thankless Wretch (Aleko, Zemfira, Young Gypsy, Gypsies)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.962
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.394
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.243
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.442
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Aleko: Women's Dance
type: MusicRecording
duration: PT3M50S
duration ms: 230266
explicit: false
by artist: Sergei Rachmaninoff
by artist: Gianandrea Noseda
by artist: BBC Philharmonic Orchestra
in album: Rachmaninoff: Aleko
  type: MusicAlbum
  date published: 2010-04-01
genre: classical
genre: classical-piano
genre: concerto
isrc code: GBLWD1001605
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T14:52:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7ab985baca4dff04bb066fbad0dd43ba6dd7b34a6e5f6661f9e1a9ef5af9efa
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/GBLWD1001605
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 0xd7ab985baca4dff04bb066fbad0dd43ba6dd7b34a6e5f6661f9e1a9ef5af9efa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1001605 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Aleko: Women's Dance
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.662
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.134
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.916
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.765
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.276
  additional property: Loudness (dB)
    type: PropertyValue
    value: -39.234
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Aleko: Men's Dance
type: MusicRecording
duration: PT4M17S
duration ms: 257665
explicit: false
by artist: Sergei Rachmaninoff
by artist: Gianandrea Noseda
by artist: BBC Philharmonic Orchestra
in album: Rachmaninoff: Aleko
  type: MusicAlbum
  date published: 2010-04-01
genre: classical
genre: classical-piano
genre: concerto
isrc code: GBLWD1001606
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T18:53:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2854d0290774c560137705682884ff607a8fdb7a60db14244226d149940bc81d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1001606
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2854d0290774c560137705682884ff607a8fdb7a60db14244226d149940bc81d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1001606 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: Aleko: Men's Dance
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 162.809
  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: 0.274
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.906
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.04
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Aleko: Aleko's Cavatina. The Whole Camp Sleeps (Aleko)
type: MusicRecording
duration: PT5M41S
duration ms: 341466
explicit: false
by artist: Sergei Rachmaninoff
by artist: Gianandrea Noseda
by artist: Sergey Murzaev
by artist: BBC Philharmonic Orchestra
in album: Rachmaninoff: Aleko
  type: MusicAlbum
  date published: 2010-04-01
genre: classical
genre: classical-piano
genre: concerto
isrc code: GBLWD1001610
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:38:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42cb85d54007942512040617e91ff3481b97fbd3fa9aa1ff61e5097614f7606a
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/GBLWD1001610
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cb85d54007942512040617e91ff3481b97fbd3fa9aa1ff61e5097614f7606a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1001610 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Aleko: Aleko's Cavatina. The Whole Camp Sleeps (Aleko)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.979
  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: 0.315
  additional property: Energy
    type: PropertyValue
    value: 0.126
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.091
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.827
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Aleko: Young Gypsy's Romance. Look How Beneath the Distant Vault of Heaven (Young Gypsy)
type: MusicRecording
duration: PT1M36S
duration ms: 96133
explicit: false
by artist: Sergei Rachmaninoff
by artist: Gianandrea Noseda
by artist: Evgeny Akimov
by artist: BBC Philharmonic Orchestra
in album: Rachmaninoff: Aleko
  type: MusicAlbum
  date published: 2010-04-01
genre: classical
genre: classical-piano
genre: concerto
isrc code: GBLWD1001612
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T12:00:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbc51a63429e61e51a72fb23611db84fa22027e1731298645f95eba2ebdfda3f6
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/GBLWD1001612
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 0xbc51a63429e61e51a72fb23611db84fa22027e1731298645f95eba2ebdfda3f6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1001612 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Aleko: Young Gypsy's Romance. Look How Beneath the Distant Vault of Heaven (Young Gypsy)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.146
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.31
  additional property: Energy
    type: PropertyValue
    value: 0.035
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.9
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.151
  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.156
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.653
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Aleko: Duet and Finale. It's Time to Go, My Love, It's Time! (Zemfira, Young Gypsy, Aleko)
type: MusicRecording
duration: PT4M49S
duration ms: 289133
explicit: false
by artist: Sergei Rachmaninoff
by artist: Gianandrea Noseda
by artist: Svetla Vassileva
by artist: Evgeny Akimov
by artist: Sergey Murzaev
by artist: BBC Philharmonic Orchestra
in album: Rachmaninoff: Aleko
  type: MusicAlbum
  date published: 2010-04-01
genre: classical
genre: classical-piano
genre: concerto
isrc code: GBLWD1001613
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T20:38:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0190ec01ea0314e2fbbd955d6b85158faac7409a8e0233cd11d333f7b8acca54
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960468
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960468
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1001613
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T21:25:57Z
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 0x0190ec01ea0314e2fbbd955d6b85158faac7409a8e0233cd11d333f7b8acca54. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1001613 — a six-check JSON result.
  date published: 2026-07-31T21:25:57Z
audio: Aleko: Duet and Finale. It's Time to Go, My Love, It's Time! (Zemfira, Young Gypsy, Aleko)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.772
  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: 0.371
  additional property: Energy
    type: PropertyValue
    value: 0.085
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.211
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.07
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.017
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Rachmaninoff: Francesca da Rimini
type: MusicAlbum
date published: 2007-11-01
track: Francesa da Rimini, Op. 25, Prologue: Largo
  type: MusicRecording
  duration: PT6M11S
  duration ms: 371333
  explicit: false
  by artist: Sergei Rachmaninoff
  by artist: Gianandrea Noseda
  by artist: BBC Philharmonic Orchestra
  in album: Rachmaninoff: Francesca da Rimini
    type: MusicAlbum
    date published: 2007-11-01
  genre: classical
  genre: classical-piano
  genre: concerto
  isrc code: GBLWD0709301
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T08:33:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd26242fb43c8f9567dd80d2fe4149c7f1d3c20305a42ddddc6fa952a2012c435
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960370
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960370
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0709301
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T08:38:45Z
  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 0xd26242fb43c8f9567dd80d2fe4149c7f1d3c20305a42ddddc6fa952a2012c435. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0709301 — a six-check JSON result.
    date published: 2026-07-31T08:38:45Z
  audio: Francesa da Rimini, Op. 25, Prologue: Largo
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 108.457
    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: 0.117
    additional property: Energy
      type: PropertyValue
      value: 0.007
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.947
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.682
    additional property: Liveness
      type: PropertyValue
      value: 0.151
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.032
    additional property: Loudness (dB)
      type: PropertyValue
      value: -35.079
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Francesa da Rimini, Op. 25, Prologue: The First Circle of Hell (The Shade of Virgil, Dante)
  type: MusicRecording
  duration: PT5M37S
  duration ms: 337906
  explicit: false
  by artist: Sergei Rachmaninoff
  by artist: Gianandrea Noseda
  by artist: BBC Philharmonic Orchestra
  by artist: Gennady Bezzubenkov
  by artist: Evgeny Akimov
  in album: Rachmaninoff: Francesca da Rimini
    type: MusicAlbum
    date published: 2007-11-01
  genre: classical
  genre: classical-piano
  genre: concerto
  isrc code: GBLWD0709302
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T17:17:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe22a34102af80e43e1c2765c8e0be80b0767ebcacaf2d36332c3f238174c7c78
  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/GBLWD0709302
  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 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 0xe22a34102af80e43e1c2765c8e0be80b0767ebcacaf2d36332c3f238174c7c78. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0709302 — a six-check JSON result.
    date published: 2026-07-08T03:53:27Z
  audio: Francesa da Rimini, Op. 25, Prologue: The First Circle of Hell (The Shade of Virgil, Dante)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.81
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 6
    additional property: Danceability
      type: PropertyValue
      value: 0.086
    additional property: Energy
      type: PropertyValue
      value: 0.01
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.935
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.048
    additional property: Liveness
      type: PropertyValue
      value: 0.126
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.036
    additional property: Loudness (dB)
      type: PropertyValue
      value: -32.107
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Francesa da Rimini, Op. 25, Scene 2: The Fair Guinivere… (Paolo, Francesca, Lanceotto)
  type: MusicRecording
  duration: PT16M3S
  duration ms: 963520
  explicit: false
  by artist: Sergei Rachmaninoff
  by artist: Gianandrea Noseda
  by artist: BBC Philharmonic Orchestra
  by artist: Sergey Murzaev
  by artist: Svetla Vassileva
  by artist: Misha Didyk
  in album: Rachmaninoff: Francesca da Rimini
    type: MusicAlbum
    date published: 2007-11-01
  genre: classical
  genre: classical-piano
  genre: concerto
  isrc code: GBLWD0709309
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Francesa da Rimini, Op. 25, Scene 2: The Fair Guinivere… (Paolo, Francesca, Lanceotto)
track: Francesa da Rimini, Op. 25, Epilogue: Epilogue (Souls of Francesca and Paolo, Chorus)

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T10:42:34+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xa2519494e0f4ecfeea3b89845eabf195be2ea8403ae755c359b84bf81e176ef9

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0709309

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

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2519494e0f4ecfeea3b89845eabf195be2ea8403ae755c359b84bf81e176ef9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0709309 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Francesa da Rimini, Op. 25, Scene 2: The Fair Guinivere… (Paolo, Francesca, Lanceotto)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 144.656
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.272
additional property: Energy
  type: PropertyValue
  value: 0.151
additional property: Speechiness
  type: PropertyValue
  value: 0.053
additional property: Acousticness
  type: PropertyValue
  value: 0.964
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.169
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.04
additional property: Loudness (dB)
  type: PropertyValue
  value: -24.526
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major

Francesa da Rimini, Op. 25, Epilogue: Epilogue (Souls of Francesca and Paolo, Chorus)
type: MusicRecording
duration: PT3M47S
duration ms: 227293
explicit: false
by artist: Sergei Rachmaninoff
by artist: Gianandrea Noseda
by artist: BBC Philharmonic Orchestra
by artist: Svetla Vassileva
by artist: Misha Didyk
by artist: BBC Singers
in album: Rachmaninoff: Francesca da Rimini
  type: MusicAlbum
  date published: 2007-11-01
genre: classical
genre: classical-piano
genre: concerto
isrc code: GBLWD0709310
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:30:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe5fca57c14c7782a5a8b9b54132d34c17970de79f1ae57047b2c0826e48f19a6
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/GBLWD0709310
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fca57c14c7782a5a8b9b54132d34c17970de79f1ae57047b2c0826e48f19a6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0709310 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Francesa da Rimini, Op. 25, Epilogue: Epilogue (Souls of Francesca and Paolo, Chorus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.839
  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: 0.158
  additional property: Energy
    type: PropertyValue
    value: 0.296
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.904
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.776
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.051
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.46
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Smareglia: Nozze istriane
type: MusicAlbum
date published: 2014-02-25