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Wozzeck, Op. 7, Act I: Langsam, Wozzeck, langsam!
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Wozzeck, Op. 7, Act I: Du, der Platz ist verflucht!
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Wozzeck, Op. 7, Act II: Wachstube in der Kaserne - Oh-oh-Andres! Ich kann nicht schlafen
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Wozzeck, Op. 7, Act III: Schenke - Tanzt Alle
type: MusicRecording
duration: PT3M4S
duration ms: 184186
explicit: false
by artist: Alban Berg
by artist: Audun Iversen
by artist: Martin Mitterrutzner
by artist: Katharina Magiera
by artist: Chor der Oper Frankfurt
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
in album: Berg: Wozzeck
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  date published: 2018-08-24
genre: opera
isrc code: DEU921897413
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Wozzeck, Op. 7, Act III: Schenke - Tanzt Alle
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Wozzeck, Op. 7, Act III: Das Messer? Wo ist das Messer?
type: MusicRecording
duration: PT7M49S
duration ms: 469893
explicit: false
by artist: Alban Berg
by artist: Audun Iversen
by artist: Peter Bronder
by artist: Alfred Reiter
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
in album: Berg: Wozzeck
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genre: opera
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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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  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: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Wozzeck, Op. 7, Act III: Das Messer? Wo ist das Messer?
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Wozzeck, Op. 7, Act II: Wohin so eilig, geehrtester, Herr Sargnagel?
type: MusicRecording
duration: PT9M36S
duration ms: 576813
explicit: false
by artist: Alban Berg
by artist: Audun Iversen
by artist: Peter Bronder
by artist: Alfred Reiter
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
in album: Berg: Wozzeck
  type: MusicAlbum
  date published: 2018-08-24
genre: opera
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138e02dc0dc1a39ec391cf483614b498f957d6a0fd0425887c231e6b2b80901d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU921897407.
  date published: 2026-07-31T15:59:18Z
audio: Wozzeck, Op. 7, Act II: Wohin so eilig, geehrtester, Herr Sargnagel?
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additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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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

Wozzeck, Op. 7, Act I: Tschin Bum, Tschin, Bum! Hörst Bub?
type: MusicRecording
duration: PT8M30S
duration ms: 510613
explicit: false
by artist: Alban Berg
by artist: Audun Iversen
by artist: Claudia Mahnke
by artist: Katharina Magiera
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
in album: Berg: Wozzeck
  type: MusicAlbum
  date published: 2018-08-24
genre: opera
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05e163ad5f082bcae6ef1e68c74fd61e962d079c5755830c55db2a81999b69a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU921897403.
  date published: 2026-07-31T02:19:15Z
audio: Wozzeck, Op. 7, Act I: Tschin Bum, Tschin, Bum! Hörst Bub?
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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

Wozzeck, Op. 7, Act II: Guten tag, Franz
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duration: PT4M42S
duration ms: 282453
explicit: false
by artist: Alban Berg
by artist: Audun Iversen
by artist: Claudia Mahnke
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
in album: Berg: Wozzeck
  type: MusicAlbum
  date published: 2018-08-24
genre: opera
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b837b077340446c96319ba7611997b6f56dbf022b7468fdd53e5b0a9f745f2a. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU921897408.
  date published: 2026-07-31T23:51:35Z
audio: Wozzeck, Op. 7, Act II: Guten tag, Franz
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isrc code: DEU921897408
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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

Wozzeck, Op. 7, Act I: Studierstube des Doktors - Was erleb'ich Wozzeck?
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duration: PT7M20S
duration ms: 440360
explicit: false
by artist: Alban Berg
by artist: Audun Iversen
by artist: Alfred Reiter
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
in album: Berg: Wozzeck
  type: MusicAlbum
  date published: 2018-08-24
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-08-01T01:44:32Z
audio: Wozzeck, Op. 7, Act I: Studierstube des Doktors - Was erleb'ich Wozzeck?
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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

Wozzeck, Op. 7, Act II: Wirtshausgarten - Ich hab' ein Hemdlein an
type: MusicRecording
duration: PT10M10S
duration ms: 610173
explicit: false
by artist: Alban Berg
by artist: Audun Iversen
by artist: Vincent Wolfsteiner
by artist: Martin Mitterrutzner
by artist: Thomas Faulkner
by artist: Iurii Samoilov
by artist: Martin Wolfel
by artist: Claudia Mahnke
by artist: Chor der Oper Frankfurt
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
in album: Berg: Wozzeck
  type: MusicAlbum
  date published: 2018-08-24
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T10:20:10Z
audio: Wozzeck, Op. 7, Act II: Wirtshausgarten - Ich hab' ein Hemdlein an
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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

Wozzeck, Op. 7, Act III: Waldweg am Teich - Dort links geht's in die Stadt
type: MusicRecording
duration: PT5M26S
duration ms: 326480
explicit: false
by artist: Alban Berg
by artist: Audun Iversen
by artist: Claudia Mahnke
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
in album: Berg: Wozzeck
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  date published: 2018-08-24
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T13:06:57Z
audio: Wozzeck, Op. 7, Act III: Waldweg am Teich - Dort links geht's in die Stadt
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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

Wozzeck, Op. 7, Act III: Ringel, Ringel, Rosenkranz, Ringelreih'n!
type: MusicRecording
duration: PT1M42S
duration ms: 102573
explicit: false
by artist: Alban Berg
by artist: Martin Mitterrutzner
by artist: Edward Jumatate
by artist: Frankfurt Opera Children's Chorus
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
in album: Berg: Wozzeck
  type: MusicAlbum
  date published: 2018-08-24
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
audio: Wozzeck, Op. 7, Act III: Ringel, Ringel, Rosenkranz, Ringelreih'n!
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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L'africaine "Vasco da Gama" (J. Selk Critical Edition): Ouverture
type: MusicRecording
duration: PT4M40S
duration ms: 280146
explicit: false
by artist: Giacomo Meyerbeer
by artist: Antonello Manacorda
by artist: Frankfurter Opern- und Museumsorchester
in album: Meyerbeer: L'africaine "Vasco da Gama" (J. Selk Critical Edition)
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  date published: 2024-05-10
genre: opera
isrc code: HKI192349601
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:39:04Z
audio: L'africaine "Vasco da Gama" (J. Selk Critical Edition): Ouverture
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Der ferne Klang, Act II: Vorspiel. Ah, wenn der Abend kommt (Chor)
type: MusicRecording
duration: PT3M54S
duration ms: 234866
explicit: false
by artist: Franz Schreker
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
by artist: Chor der Oper Frankfurt
in album: Schreker: Der ferne Klang
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  date published: 2021-04-16
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
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additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Der ferne Klang, Act II: Vorspiel. Ah, wenn der Abend kommt (Chor)
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Der ferne Klang, Act II Scene 6: Eine Schauergeschichte, Graf! (Chevalier, Chor)
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duration: PT4M27S
duration ms: 267506
explicit: false
by artist: Franz Schreker
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
by artist: Theo Lebow
by artist: Chor der Oper Frankfurt
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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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  date published: 2026-07-08T03:20:19Z
audio: Der ferne Klang, Act II Scene 6: Eine Schauergeschichte, Graf! (Chevalier, Chor)
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Der ferne Klang, Act I: Vorspiel
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  date published: 2026-07-31T22:27:44Z
audio: Der ferne Klang, Act I: Vorspiel
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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

Der ferne Klang, Act II Scene 1: Meine Liebste (Graf, Milli, Mary, Mizi, Spanierin)
type: MusicRecording
duration: PT1M25S
duration ms: 85680
explicit: false
by artist: Franz Schreker
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
by artist: Gordon Bintner
by artist: Bianca Andrew
by artist: Julia Moorman
by artist: Julia Dawson
by artist: Kelsey Lauritano
in album: Schreker: Der ferne Klang
  type: MusicAlbum
  date published: 2021-04-16
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1af1fb87116b34bf67f0a6bc63a9532a7394bc8d29f9498e68bd4b43bd7c9d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU921998013.
  date published: 2026-07-31T19:53:13Z
audio: Der ferne Klang, Act II Scene 1: Meine Liebste (Graf, Milli, Mary, Mizi, Spanierin)
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  additional property: Danceability
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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isrc code: DEU921998013
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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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
  type: PropertyValue
  value: 2026-07-31T19:53:13+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

Der ferne Klang, Act I Scene 1: Als du tratst in mein armes Leben (Grete, Fritz)
type: MusicRecording
duration: PT4M52S
duration ms: 292306
explicit: false
by artist: Franz Schreker
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
by artist: Jennifer Holloway
by artist: Ian Koziara
in album: Schreker: Der ferne Klang
  type: MusicAlbum
  date published: 2021-04-16
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2724ea5139c7f7e36384cf7337c8b95c06c4a408c25f292540fc5befd88c6f. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU921998003.
  date published: 2026-08-01T00:10:46Z
audio: Der ferne Klang, Act I Scene 1: Als du tratst in mein armes Leben (Grete, Fritz)
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  additional property: Acousticness
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  additional property: Loudness (dB)
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  additional property: Key Name
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isrc code: DEU921998003
additional property: CopyrightID
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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additional property: OTSVerificationAPI
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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: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T00:10:46+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

Der ferne Klang, Act II Scenes 4: Nun wer wird denn da wieder verlästert? (Graf, Milli, Mizi, Mary, Spanierin, Baron, Chor)
type: MusicRecording
duration: PT0M56S
duration ms: 56026
explicit: false
by artist: Franz Schreker
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
by artist: Gordon Bintner
by artist: Bianca Andrew
by artist: Julia Moorman
by artist: Kelsey Lauritano
by artist: Julia Dawson
by artist: Iain MacNeil
by artist: Chor der Oper Frankfurt
in album: Schreker: Der ferne Klang
  type: MusicAlbum
  date published: 2021-04-16
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b707577429b19d75be6ccf844840891af294b40e194ae2eb6181a6577ad189. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/DEU921998014.
  date published: 2026-07-31T13:26:30Z
audio: Der ferne Klang, Act II Scenes 4: Nun wer wird denn da wieder verlästert? (Graf, Milli, Mizi, Mary, Spanierin, Baron, Chor)
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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: Liveness
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  additional property: Valence (Positivity)
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isrc code: DEU921998014
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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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
  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 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

Der ferne Klang, Act II Scene 6: Sagen sie mir doch, Marchesa (Grete, Mizi, Baron, Graf, Chor)
type: MusicRecording
duration: PT4M23S
duration ms: 263200
explicit: false
by artist: Franz Schreker
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
by artist: Jennifer Holloway
by artist: Chor der Oper Frankfurt
by artist: Julia Dawson
by artist: Iain MacNeil
by artist: Gordon Bintner
in album: Schreker: Der ferne Klang
  type: MusicAlbum
  date published: 2021-04-16
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bafdabce7cdc5c0e77c09eeccba95f71f9b3d2e1d84fe412847741ee3220ce. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEU921998016.
  date published: 2026-08-01T02:22:04Z
audio: Der ferne Klang, Act II Scene 6: Sagen sie mir doch, Marchesa (Grete, Mizi, Baron, Graf, Chor)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 160.615
  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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isrc code: DEU921998016
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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

Der ferne Klang, Act I Scene 4: Nur herein meine Herrn (Graumann, Wirt, Schauspieler, Chor)
type: MusicRecording
duration: PT4M7S
duration ms: 247706
explicit: false
by artist: Franz Schreker
by artist: Frankfurter Opern- und Museumsorchester
by artist: Sebastian Weigle
by artist: Magnus Baldvinsson
by artist: Anthony Robin Schneider
by artist: Iurii Samoilov
by artist: Chor der Oper Frankfurt
in album: Schreker: Der ferne Klang
  type: MusicAlbum
  date published: 2021-04-16
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c5f2e99cbe4f87ad48bea8f69377aa1448d01aff7d3c4ad6562651d876666c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU921998006.
  date published: 2026-07-31T21:25:57Z
audio: Der ferne Klang, Act I Scene 4: Nur herein meine Herrn (Graumann, Wirt, Schauspieler, Chor)
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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: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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additional property: CopyrightID
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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
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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

Symphonie No. 1 in C Moll, Op. 68: I. Un poco sostenuto - Allegro
type: MusicRecording
duration: PT12M19S
duration ms: 739700
explicit: false
by artist: Johannes Brahms
by artist: Carl Bamberger
by artist: Frankfurter Opern- und Museumsorchester
in album: Johannes Brahms: Symphonie No. 1 in C Moll, Op. 68, Symphonie No. 4 in E Moll, Op. 98, Tragische Ouverture, Op. 81, Rhapsodie für Altstimme, Männerchor und Orchester, Op. 53
  type: MusicAlbum
  date published: 2019-12-10
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: UKJE71900281
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/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKJE71900281
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
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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 0x57b6ebc7bd6e13f00bf8579c31404cf6635f4cd16bf835f647e424da10885ee2. 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/UKJE71900281.
  date published: 2026-07-08T03:53:27Z
audio: Symphonie No. 1 in C Moll, Op. 68: I. Un poco sostenuto - Allegro
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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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    value: C
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    value: Minor

Instrumentalness
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value: 0.619

Liveness
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value: 0.342

Valence (Positivity)
type: PropertyValue
value: 0.088

Loudness (dB)
type: PropertyValue
value: -17.4

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Symphonie No. 4 in E Moll, Op. 98: II. Andante moderato
type: MusicRecording
duration: PT10M58S
duration ms: 658300
explicit: false
by artist: Johannes Brahms
by artist: Carl Bamberger
in album: Johannes Brahms: Symphonie No. 1 in C Moll, Op. 68, Symphonie No. 4 in E Moll, Op. 98, Tragische Ouverture, Op. 81, Rhapsodie für Altstimme, Männerchor und Orchester, Op. 53
  type: MusicAlbum
  date published: 2019-12-10
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: UKJE71900286
additional property: CopyrightID
additional property: CopyrightStatus
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