Lucia Popp
type: MusicGroup
genre: classical
genre: opera
description: Lucia Popp (born Lucia Poppová; 12 November 193916 November 1993) was a Slovak operatic soprano. She began her career as a soubrette, and later moved into the light-lyric and lyric coloratura soprano
popularity: 36
followers: 12915
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additional property: OTSVerifyInstructions
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  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
subject of: OpenTimestamps Proof of Existence
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album: Leoncavallo: La bohème
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  date published: 2016-01-01
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    by artist: Alexandrina Milcheva
    by artist: Heinz Wallberg
    by artist: Munich Radio Orchestra
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      type: MusicAlbum
      date published: 2016-01-01
    popularity: 0
    genre: italian-opera
    genre: italian-romanticism
    genre: opera
    isrc code: DEB958202311
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:22:41Z
    audio: La bohème, Act II: Da quel suon soavemente
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album: Mahler 8 "Symphony of a Thousand"
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  date published: 1972-01-01
  track: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: I. Veni, creator spiritus
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      date published: 1972-01-01
    popularity: 19
    genre: classical
    genre: orchestra
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-02T03:30:09Z
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  track: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: II. Imple superna gratia
  track: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: III. Infirma nostri corporis I - IV. Tempo - V. Infirma nostri corporis II
  track: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: VI. Accende lumen sensibus
  track: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: VII. Veni, creator... Da gaudiorum praemia
  track: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: VIII. Gloria sit Patri Domino
  track: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: IV. Ewiger Wonnebrand
  track: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: VIII. Uns bleibt ein Erdenrest - IX. Ich spür' soeben
  track: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: X. Höchste Herrscherin der Welt - XI. Dir, der Unberührbaren
  track: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: XV. Blicket auf zum Retterblick
  track: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: XVI. Alles Vergängliche
  track: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: XIII. Neige, neige, du Ohnegleiche - XIV. Er überwächst uns schon
album: Wiener Operettenarien
album: J. Strauss II: Die Fledermaus
album: Mozart: Così fan tutte, K. 588 (Remastered)
track: Rusalka, Act I: Song To The Moon - Enstürmantal
track: Le nozze di Figaro, K.492 / Act 3: "Che soave zeffiretto"
track: Mozart: Le nozze di Figaro, K.492 - Original version, Vienna 1786 - Act 4: "Contessa, perdono ... Ah tutti contenti"
track: Così fan tutte, K.588 / Act 1: "Soave sia il vento"
track: Eugene Onegin, Op. 24, Act I: Tatiana's letter scene
track: Don Giovanni, K.527 / Act 1: "Là ci darem la mano"
track: Dvořák: Rusalka, Op. 114, B. 203, Act 1: "Mesicku na nebi hlubokém" (Rusalka)
track: Hänsel und Gretel / Act 2: "Abends will ich schlafen gehn"

Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: II. Imple superna gratia
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duration: PT4M25S
duration ms: 265866
explicit: false
by artist: Gustav Mahler
by artist: Heather Harper
by artist: Lucia Popp
by artist: Yvonne Minton
by artist: Helen Watts
by artist: René Kollo
by artist: John Shirley-Quirk
by artist: Martti Talvela
by artist: Wiener Singverein
by artist: Wiener Staatsopernchor
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Mahler 8 "Symphony of a Thousand"
  type: MusicAlbum
  date published: 1972-01-01
popularity: 13
genre: classical
genre: orchestra
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: II. Imple superna gratia
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Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: III. Infirma nostri corporis I - IV. Tempo - V. Infirma nostri corporis II
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duration: PT6M20S
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by artist: Gustav Mahler
by artist: Heather Harper
by artist: Lucia Popp
by artist: Yvonne Minton
by artist: Helen Watts
by artist: René Kollo
by artist: John Shirley-Quirk
by artist: Martti Talvela
by artist: Wiener Singverein
by artist: Wiener Staatsopernchor
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
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  date published: 1972-01-01
popularity: 11
genre: classical
genre: orchestra
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: III. Infirma nostri corporis I - IV. Tempo - V. Infirma nostri corporis II
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Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: VI. Accende lumen sensibus
type: MusicRecording
duration: PT4M43S
duration ms: 283933
explicit: false
by artist: Gustav Mahler
by artist: Heather Harper
by artist: Lucia Popp
by artist: Yvonne Minton
by artist: Helen Watts
by artist: René Kollo
by artist: John Shirley-Quirk
by artist: Martti Talvela
by artist: Vienna Boys' Choir
by artist: Wiener Singverein
by artist: Wiener Staatsopernchor
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Mahler 8 "Symphony of a Thousand"
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popularity: 12
genre: classical
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  date published: 2026-07-02T05:09:12Z
audio: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: VI. Accende lumen sensibus
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Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: VII. Veni, creator... Da gaudiorum praemia
type: MusicRecording
duration: PT3M49S
duration ms: 229800
explicit: false
by artist: Gustav Mahler
by artist: Heather Harper
by artist: Lucia Popp
by artist: Yvonne Minton
by artist: Helen Watts
by artist: René Kollo
by artist: John Shirley-Quirk
by artist: Martti Talvela
by artist: Wiener Singverein
by artist: Vienna Boys' Choir
by artist: Wiener Staatsopernchor
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Mahler 8 "Symphony of a Thousand"
  type: MusicAlbum
  date published: 1972-01-01
popularity: 11
genre: classical
genre: orchestra
isrc code: GBF077130605
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130605
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2542eb5d0c33c8a86dea3f98f7968f7110644ea7756e8c5d9c0144816ad634c7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130605.
  date published: 2026-07-02T05:09:12Z
audio: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: VII. Veni, creator... Da gaudiorum praemia
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Key Name
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  additional property: Mode Name
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Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: VIII. Gloria sit Patri Domino
type: MusicRecording
duration: PT2M27S
duration ms: 147253
explicit: false
by artist: Gustav Mahler
by artist: Heather Harper
by artist: Lucia Popp
by artist: Helen Watts
by artist: Yvonne Minton
by artist: René Kollo
by artist: John Shirley-Quirk
by artist: Martti Talvela
by artist: Wiener Singverein
by artist: Vienna Boys' Choir
by artist: Wiener Staatsopernchor
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Mahler 8 "Symphony of a Thousand"
  type: MusicAlbum
  date published: 1972-01-01
popularity: 12
genre: classical
genre: orchestra
isrc code: GBF077130606
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130606
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b00e963bd62ffa54f51071390224ae582d6dce5ccb0bf5e927bb2a922b3372. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130606.
  date published: 2026-07-02T05:09:12Z
audio: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 1: VIII. Gloria sit Patri Domino
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Energy
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  additional property: Valence (Positivity)
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  additional property: Key Name
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  additional property: Mode Name
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Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: X. Höchste Herrscherin der Welt - XI. Dir, der Unberührbaren
type: MusicRecording
duration: PT8M7S
duration ms: 487973
explicit: false
by artist: Gustav Mahler
by artist: Lucia Popp
by artist: René Kollo
by artist: Wiener Singverein
by artist: Wiener Staatsopernchor
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Mahler 8 "Symphony of a Thousand"
  type: MusicAlbum
  date published: 1972-01-01
popularity: 8
genre: classical
genre: orchestra
isrc code: GBF077130612
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130612
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T13:25:45+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5425af2b609a3b6ce05c3039b24accd2ba9d6527e9fd5885ecdd932cd6d7ae8. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-21T17:21:37Z), 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/GBF077130612.
  date published: 2026-07-21T17:21:37Z
audio: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: X. Höchste Herrscherin der Welt - XI. Dir, der Unberührbaren
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Speechiness
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  additional property: Valence (Positivity)
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  additional property: Mode Name
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Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: XVI. Alles Vergängliche
type: MusicRecording
duration: PT6M43S
duration ms: 403293
explicit: false
by artist: Gustav Mahler
by artist: Heather Harper
by artist: Lucia Popp
by artist: Yvonne Minton
by artist: Helen Watts
by artist: René Kollo
by artist: John Shirley-Quirk
by artist: Martti Talvela
by artist: Vienna Boys' Choir
by artist: Wiener Singverein
by artist: Wiener Staatsopernchor
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Mahler 8 "Symphony of a Thousand"
  type: MusicAlbum
  date published: 1972-01-01
popularity: 20
genre: classical
genre: orchestra
isrc code: GBF077130616
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130616
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa791bf233c3bd287e4af9176c1a5030b0c90672020ae1309dda8ff76d6afb10f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130616.
  date published: 2026-06-13T13:32:09Z
audio: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: XVI. Alles Vergängliche
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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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: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: XIII. Neige, neige, du Ohnegleiche - XIV. Er überwächst uns schon
type: MusicRecording
duration: PT5M18S
duration ms: 318306
explicit: false
by artist: Gustav Mahler
by artist: Lucia Popp
by artist: Arleen Auger
by artist: Vienna Boys' Choir
by artist: Wiener Singverein
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Mahler 8 "Symphony of a Thousand"
  type: MusicAlbum
  date published: 1972-01-01
popularity: 9
genre: classical
genre: orchestra
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60643f236a246347a931ab1f4fab8ee92570b61a8367f0a2fe557f98d247a59a. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBF077130614.
  date published: 2026-07-29T11:07:37Z
audio: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: XIII. Neige, neige, du Ohnegleiche - XIV. Er überwächst uns schon
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.199
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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isrc code: GBF077130614
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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

Zeller: Der Obersteiger, Act 2: "Sei nicht bös" (Martin)
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duration: PT4M38S
duration ms: 278160
explicit: false
by artist: Carl Zeller
by artist: Lucia Popp
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Wiener Operettenarien
  type: MusicAlbum
  date published: 2024-05-03
popularity: 3
isrc code: GBAYC8602649
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8602649
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Zeller: Der Obersteiger, Act 2: "Sei nicht bös" (Martin)
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Lincke: Frau Luna: "Schlösser, die im Monde liegen"
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by artist: Sir Neville Marriner
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popularity: 3
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Lincke: Frau Luna: "Schlösser, die im Monde liegen"
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Strauss, J. II / Orch. Stalla: Die Tänzerin Fanny Elssler, Act 2: "Draußen in Sievering" (Fanny)
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duration: PT4M22S
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by artist: Johann Strauss II
by artist: Lucia Popp
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
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popularity: 2
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Strauss, J. II / Orch. Stalla: Die Tänzerin Fanny Elssler, Act 2: "Draußen in Sievering" (Fanny)
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Lehár: Die lustige Witwe, Act 2: Vilja-Lied. "Es lebt eine Vilja, ein Waldmägdelein" (Hanna)
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duration: PT5M47S
duration ms: 347320
explicit: false
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by artist: Lucia Popp
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
by artist: Ambrosian Opera Chorus
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popularity: 3
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Lehár: Die lustige Witwe, Act 2: Vilja-Lied. "Es lebt eine Vilja, ein Waldmägdelein" (Hanna)
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Benatzky & Strauss II, J.: Casanova, Act 1: Nonnenchor. "O Madonna, auf uns sieh!" - Lied der Laura. "O Marie, wie entflieh" (Laura, Chor)
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by artist: Ralph Benatzky
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by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
by artist: Ambrosian Opera Chorus
by artist: Andrew Lucas
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popularity: 2
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Benatzky & Strauss II, J.: Casanova, Act 1: Nonnenchor. "O Madonna, auf uns sieh!" - Lied der Laura. "O Marie, wie entflieh" (Laura, Chor)
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Mackeben & Millöcker: Die Dubarry: "Ich schenk mein Herz nur dem allein" (Jeanne)
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duration: PT3M50S
duration ms: 230160
explicit: false
by artist: Carl Millöcker
by artist: Theo Mackeben
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by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Wiener Operettenarien
  type: MusicAlbum
  date published: 2024-05-03
popularity: 2
isrc code: GBAYC8602651
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Mackeben & Millöcker: Die Dubarry: "Ich schenk mein Herz nur dem allein" (Jeanne)
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Lehár: Giuditta: "In einem Meer von Liebe" (Giuditta, Chor)
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by artist: Lucia Popp
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
by artist: Ambrosian Opera Chorus
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  date published: 2024-05-03
popularity: 2
genre: opera
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Lehár: Giuditta: "In einem Meer von Liebe" (Giuditta, Chor)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Stolz: Der Favorit: "Du sollst der Kaiser meiner Seele sein"
type: MusicRecording
duration: PT4M47S
duration ms: 287453
explicit: false
by artist: Robert Stolz
by artist: Lucia Popp
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Wiener Operettenarien
  type: MusicAlbum
  date published: 2024-05-03
popularity: 2
genre: polka
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a1e41aaf04685e21da2888ac7ce6601244188438d983f98fbb3f4e722f4072. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8601959.
  date published: 2026-07-31T13:50:38Z
audio: Stolz: Der Favorit: "Du sollst der Kaiser meiner Seele sein"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.202
  additional property: Energy
    type: PropertyValue
    value: 0.194
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.96
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.045
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.37
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC8601959
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8601959
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960410
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960410
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:50:38+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Lehár: Giuditta: "Meine Lippen, sie küssen so heiss" (Giuditta, Chor)
type: MusicRecording
duration: PT5M28S
duration ms: 328640
explicit: false
by artist: Franz Lehár
by artist: Lucia Popp
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
by artist: Ambrosian Opera Chorus
in album: Wiener Operettenarien
  type: MusicAlbum
  date published: 2024-05-03
popularity: 3
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31581d8350ff8202d288f2018ecad603cdb0cd0da158e65e573384daccf1b6fc. 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/GBAYC8600209.
  date published: 2026-07-31T12:24:41Z
audio: Lehár: Giuditta: "Meine Lippen, sie küssen so heiss" (Giuditta, Chor)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 170.109
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.253
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
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    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: -18.326
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC8600209
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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  value: 2026-07-31T12:24:41+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600209
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Dostal: Die ungarische Hochzeit, Act 2: "Spiel mir das Lied von Glück und Treu" (Janka)
type: MusicRecording
duration: PT6M29S
duration ms: 389906
explicit: false
by artist: Nico Dostal
by artist: Lucia Popp
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Wiener Operettenarien
  type: MusicAlbum
  date published: 2024-05-03
popularity: 1
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc606914ac382c71b160aea96f6439706add1e35efd9d2c03027c1ddf896cdd7. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8602659.
  date published: 2026-07-31T13:50:38Z
audio: Dostal: Die ungarische Hochzeit, Act 2: "Spiel mir das Lied von Glück und Treu" (Janka)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 92.843
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.252
  additional property: Energy
    type: PropertyValue
    value: 0.146
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.923
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.083
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.06
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.288
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC8602659
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960410
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T13:50:38+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8602659
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960410
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960410
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:50:38+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Strauss, Johann II: Die Fledermaus, Act 1: "Ach, ich darf nicht hin zu dir! (Adele, Rosalinde, Alfred)
type: MusicRecording
duration: PT1M58S
duration ms: 118640
explicit: false
by artist: Johann Strauss II
by artist: Plácido Domingo
by artist: Eva Lind
by artist: Lucia Popp
by artist: Das Münchner Rundfunkorchester
in album: J. Strauss II: Die Fledermaus
  type: MusicAlbum
  date published: 2023-08-25
popularity: 6
isrc code: GBAYC8600728
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T21:32:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e283bcf118067cad477af468f90d8ec5175488c96de186264c69ff505f8756d
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600728
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e283bcf118067cad477af468f90d8ec5175488c96de186264c69ff505f8756d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBAYC8600728.
  date published: 2026-07-08T03:39:04Z
audio: Strauss, Johann II: Die Fledermaus, Act 1: "Ach, ich darf nicht hin zu dir! (Adele, Rosalinde, Alfred)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.944
  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: 0.394
  additional property: Energy
    type: PropertyValue
    value: 0.052
  additional property: Speechiness
    type: PropertyValue
    value: 0.078
  additional property: Acousticness
    type: PropertyValue
    value: 0.95
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.147
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.111
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.078
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Strauss, Johann II: Die Fledermaus, Act 1: "Nein, mit solchen Advokaten" (Eisenstein, Rosalinde, Blind, Adele, Falke)
type: MusicRecording
duration: PT5M21S
duration ms: 321266
explicit: false
by artist: Johann Strauss II
by artist: Plácido Domingo
by artist: Eva Lind
by artist: Heinz Zednik
by artist: Lucia Popp
by artist: Peter Seiffert
by artist: Wolfgang Brendel
by artist: Das Münchner Rundfunkorchester
in album: J. Strauss II: Die Fledermaus
  type: MusicAlbum
  date published: 2023-08-25
popularity: 4
isrc code: GBAYC8600729
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:41:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e5c34a9afd6fc7263d5f4e95aab0ba8ce9188c313c70fa152b5c998208371d0
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/GBAYC8600729
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5c34a9afd6fc7263d5f4e95aab0ba8ce9188c313c70fa152b5c998208371d0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600729.
  date published: 2026-07-08T03:20:19Z
audio: Strauss, Johann II: Die Fledermaus, Act 1: "Nein, mit solchen Advokaten" (Eisenstein, Rosalinde, Blind, Adele, Falke)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.198
  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: 0.434
  additional property: Energy
    type: PropertyValue
    value: 0.182
  additional property: Speechiness
    type: PropertyValue
    value: 0.087
  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.224
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.29
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.293
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Strauss, Johann II: Die Fledermaus, Act 1: "Trinke, Liebchen, trinke schnell" - "Mein Herr, was dächten Sie von mir" (Alfred, Rosalinde, Frank)
type: MusicRecording
duration: PT12M6S
duration ms: 726706
explicit: false
by artist: Johann Strauss II
by artist: Plácido Domingo
by artist: Kurt Rydl
by artist: Lucia Popp
by artist: Das Münchner Rundfunkorchester
in album: J. Strauss II: Die Fledermaus
  type: MusicAlbum
  date published: 2023-08-25
popularity: 3
isrc code: GBAYC8600732
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:26:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xffbd3073158abf6c80bd8b5b89b1491a41a4f8b2667591e07bd872748db1a4d0
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/GBAYC8600732
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbd3073158abf6c80bd8b5b89b1491a41a4f8b2667591e07bd872748db1a4d0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600732.
  date published: 2026-07-08T03:53:27Z
audio: Strauss, Johann II: Die Fledermaus, Act 1: "Trinke, Liebchen, trinke schnell" - "Mein Herr, was dächten Sie von mir" (Alfred, Rosalinde, Frank)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.427
  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: 0.37
  additional property: Energy
    type: PropertyValue
    value: 0.151
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
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Strauss, Johann II: Die Fledermaus, Act 1: "Täubchen, das entflattert ist" (Alfred, Adele, Rosalinde)
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Strauss, Johann II: Die Fledermaus, Act 1: "Komm mit mir zum Souper" (Falke, Eisenstein, Rosalinde, Adele)
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Strauss, Johann II: Die Fledermaus, Act 1: "So muss allein ich bleiben" (Rosalinde, Eisenstein, Adele, Alfred)
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Strauss, Johann II: Die Fledermaus, Act 2: "Ach, meine Herr'n und Damen" (Orlofsky, Falke, Adele, Eisenstein, Ida, Chor, Ivan, Frank, Rosalinde)
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  date published: 2026-07-31T15:20:15Z
audio: Strauss, Johann II: Die Fledermaus, Act 2: "Ach, meine Herr'n und Damen" (Orlofsky, Falke, Adele, Eisenstein, Ida, Chor, Ivan, Frank, Rosalinde)
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Le nozze di Figaro, K.492 / Act 3: "Che soave zeffiretto"
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Mozart: Le nozze di Figaro, K.492 - Original version, Vienna 1786 - Act 4: "Contessa, perdono ... Ah tutti contenti"
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Così fan tutte, K.588 / Act 1: "Soave sia il vento"
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popularity: 8
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077110550
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953528
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T15:41:10+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608115d0b6d5f654b432349ae5c6ce031efea75f8b386d800966e612d28cb82f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077110550.
  date published: 2026-07-07T18:50:38Z
audio: Così fan tutte, K.588 / Act 1: "Soave sia il vento"
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
    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)
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Eugene Onegin, Op. 24, Act I: Tatiana's letter scene
type: MusicRecording
duration: PT4M18S
duration ms: 258640
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Lucia Popp
by artist: Stefan Soltesz
by artist: Munich Radio Orchestra
by artist: Das Münchner Rundfunkorchester
in album: Study - Tchaikovsky
  type: MusicAlbum
  date published: 2021-01-27
popularity: 5
isrc code: GBAYC0903108
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0903108
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03fdff62c7d0a5d8dd145cb136eb5c41ce858910f3872412acee1c03544700e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0903108.
  date published: 2026-07-08T03:20:19Z
audio: Eugene Onegin, Op. 24, Act I: Tatiana's letter scene
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.617
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.245
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.129
  additional property: Valence (Positivity)
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    value: 0.037
  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Don Giovanni, K.527 / Act 1: "Là ci darem la mano"
type: MusicRecording
duration: PT3M23S
duration ms: 203053
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Lucia Popp
by artist: Tom Krause
by artist: Vienna Haydn Orchestra
by artist: István Kertész
in album: Opera Arias - Nessun Dorma - Casta Diva - O Mio Babbino Caro
  type: MusicAlbum
  date published: 2011-01-01
popularity: 5
genre: classical
genre: classical-era
isrc code: GBF077110810
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T02:54:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6003fbe5daf4fcf8d2fab75217d90b0f61253082947109345417f8880a9ec609
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/GBF077110810
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6003fbe5daf4fcf8d2fab75217d90b0f61253082947109345417f8880a9ec609. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:07:00Z), 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/GBF077110810.
  date published: 2026-07-22T01:07:00Z
audio: Don Giovanni, K.527 / Act 1: "Là ci darem la mano"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.546
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.271
  additional property: Energy
    type: PropertyValue
    value: 0.216
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.286
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.216
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.693
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Hänsel und Gretel / Act 2: "Abends will ich schlafen gehn"
type: MusicRecording
duration: PT3M1S
duration ms: 181840
explicit: false
by artist: Engelbert Humperdinck
by artist: Lucia Popp
by artist: Brigitte Fassbaender
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Flower Duet - The World's Most Beautiful Duets
  type: MusicAlbum
  date published: 2010-01-01
popularity: 5
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcf6767de4890707adb72fa60c6f488d098286f9af014769983f729e29f5f63. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/GBF077811640.
  date published: 2026-07-30T20:45:02Z
audio: Hänsel und Gretel / Act 2: "Abends will ich schlafen gehn"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.593
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.084
  additional property: Energy
    type: PropertyValue
    value: 0.053
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.018
  additional property: Liveness
    type: PropertyValue
    value: 0.092
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.033
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.775
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBF077811640
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960311
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T20:45:02+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077811640
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960311
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960311
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T20:45:02+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Energy
type: PropertyValue
value: 0.491

Speechiness
type: PropertyValue
value: 0.034

Acousticness
type: PropertyValue
value: 0.927

Instrumentalness
type: PropertyValue
value: 0.125

Liveness
type: PropertyValue
value: 0.113

Valence (Positivity)
type: PropertyValue
value: 0.242

Loudness (dB)
type: PropertyValue
value: -17.091

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: IV. Ewiger Wonnebrand
type: MusicRecording
duration: PT1M35S
duration ms: 95000
explicit: false
by artist: Gustav Mahler
by artist: John Shirley-Quirk
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Mahler 8 "Symphony of a Thousand"
  type: MusicAlbum
  date published: 1972-01-01
popularity: 9
genre: classical
genre: orchestra
isrc code: GBF077130608
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:53:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93cb62a308aae3e8a53fe65aa353385018f388b25cf4eba271d4269a2855b1c3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957032
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957032
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130608
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T11:43:09Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cb62a308aae3e8a53fe65aa353385018f388b25cf4eba271d4269a2855b1c3. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130608.
  date published: 2026-07-07T11:43:09Z
audio: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: IV. Ewiger Wonnebrand
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.268
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.862
  additional property: Liveness
    type: PropertyValue
    value: 0.82
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.272
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.408
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: VIII. Uns bleibt ein Erdenrest - IX. Ich spür' soeben
type: MusicRecording
duration: PT2M58S
duration ms: 178960
explicit: false
by artist: Gustav Mahler
by artist: Yvonne Minton
by artist: René Kollo
by artist: Vienna Boys' Choir
by artist: Wiener Singverein
by artist: Wiener Staatsopernchor
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Mahler 8 "Symphony of a Thousand"
  type: MusicAlbum
  date published: 1972-01-01
popularity: 9
genre: classical
genre: orchestra
isrc code: GBF077130611
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T08:09:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd833acefb0d3f634e5c0fec99fdd7eda941fa932a67536306e373f3a91e29e84
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130611
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd833acefb0d3f634e5c0fec99fdd7eda941fa932a67536306e373f3a91e29e84. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130611.
  date published: 2026-07-07T18:39:05Z
audio: Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: VIII. Uns bleibt ein Erdenrest - IX. Ich spür' soeben
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.36
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.205
  additional property: Energy
    type: PropertyValue
    value: 0.16
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.046
  additional property: Liveness
    type: PropertyValue
    value: 0.709
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.058
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.349
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
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Symphony No. 8 in E-Flat Major "Symphony of a Thousand", Pt. 2: XV. Blicket auf zum Retterblick
type: MusicRecording
duration: PT4M46S
duration ms: 286733
explicit: false
by artist: Gustav Mahler
by artist: René Kollo
by artist: Wiener Singverein
by artist: Wiener Staatsopernchor
by artist: Vienna Boys' Choir
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Mahler 8 "Symphony of a Thousand"
  type: MusicAlbum
  date published: 1972-01-01
popularity: 10
genre: classical
genre: orchestra
isrc code: GBF077130615
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T19:29:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x864cb53f190413a24b3e6f11fa1b604c71a79e2a349f8142f8508fc7bc5d51e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077130615
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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J. Strauss II: Die Fledermaus
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Mozart: Così fan tutte, K. 588 (Remastered)
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Rusalka, Act I: Song To The Moon - Enstürmantal
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Dvořák: Rusalka, Op. 114, B. 203, Act 1: "Mesicku na nebi hlubokém" (Rusalka)
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