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genre: chamber-music
description: Benita Valente (October 19, 1934 – October 24, 2025) was an American soprano in opera, lieder, chamber music and oratorio. She appeared at the Metropolitan Opera in New York City from 1973 through 199
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subject of: OpenTimestamps Proof of Existence
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album: Arias And Duets
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  date published: 1991-01-01
album: Villa-Lobos: Bachiana brasileira No. 5, W 389 - Sibelius: Luonnotar, Op. 70 - Ravel: Shéhérazade
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album: Recital No. 2
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album: Rudolf Serkin Plays Schubert
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  track: Piano Trio in E-Flat Major, D. 929 (Op.100): II. Andante con moto
album: Great Singers of the 20th Century, Vol. 2
album: Schubert: String Quintet in C Major, Op. 163, D. 956 & The Shepherd on the Rock, Op. Posth. 129, D. 965
album: Marlboro Music Festival: 50th Anniversary Album (Live)
album: Great Singers of the 20th Century, Vol. 1
album: Serene and Tranquil Classics
album: Ave Maria, Christmas Favorites
album: The Most Fabulous Classical Christmas Album Ever!
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album: Leonard Slatkin conducts Vaughan Williams
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album: The Art of Robert Bloom: Selected Arias with Oboe Obbligato, Vol. II
album: Music of Schoenberg, Dallapiccola, Crumb, Boulez & Others
album: Looking to the East
album: Earl Kim
album: Jan De Gaetani in Concert, Vol. 3 (Live)
album: Music of David Del Tredici

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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
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Great Singers of the 20th Century, Vol. 2
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track: Spanisches Liederbuch, Pt. 2 "Weltliche Lieder": No. 12, In dem Schatten meiner Locken
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Great Singers of the 20th Century, Vol. 1
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Ave Maria, Christmas Favorites
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    date published: 2026-07-08T03:20:19Z
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    additional property: Valence (Positivity)
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track: We Three Kings
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  by artist: John Henry Hopkins
  by artist: Robert Shaw Chorale
  by artist: Robert Shaw
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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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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7273a2ca0216a18a81ec45db878dd9c0eba421f9fd2a13ce26e0c5658e6a1798. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC15700458 — a six-check JSON result.
    date published: 2026-07-30T14:36:16Z
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    type: AudioObject
    additional property: Tempo (BPM)
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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: Liveness
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    additional property: Valence (Positivity)
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track: Ave Maria, D. 839
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  duration: PT5M25S
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  by artist: Franz Schubert
  by artist: Plácido Domingo
  by artist: Vienna Boys' Choir
  by artist: Wiener Symphoniker
  by artist: Helmuth Froschauer
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    type: MusicAlbum
    date published: 1990-01-01
  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Ave Maria, D. 839

OTSHash
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OTSBitcoinBlock
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value: 960468

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960468

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC767900070

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624976d8b13108fa3eb3ef48022a06ddf7b4f537c36cca1a4c4d603cb1d2b11a. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC767900070 — a six-check JSON result.
date published: 2026-07-31T21:25:57Z

Ave Maria, D. 839
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
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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: Liveness
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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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The Most Fabulous Classical Christmas Album Ever!
type: MusicAlbum
date published: 1999-11-26
track: Deck the Halls with Boughs of Holly
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  duration: PT2M13S
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  by artist: Traditional
  by artist: Robert Shaw
  in album: The Most Fabulous Classical Christmas Album Ever!
    type: MusicAlbum
    date published: 1999-11-26
  genre: bhajan
  genre: gregorian-chant
  genre: medieval
  genre: traditional-music
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  additional property: OTSBitcoinBlock
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    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC15700194
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T18:23:33Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b86adeeaaeb1f6df8ed2ef41ec4ee05fb141168447942500475c8edd79d205f. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC15700194 — a six-check JSON result.
    date published: 2026-07-30T18:23:33Z
  audio: Deck the Halls with Boughs of Holly
    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: Danceability
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    additional property: Energy
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    additional property: Speechiness
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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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track: Good King Wenceslas
  type: MusicRecording
  duration: PT2M36S
  duration ms: 156200
  explicit: false
  by artist: Traditional
  by artist: Morton Gould
  in album: The Most Fabulous Classical Christmas Album Ever!
    type: MusicAlbum
    date published: 1999-11-26
  genre: bhajan
  genre: gregorian-chant
  genre: medieval
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b06fbe77f1376228d5dd15a2fcba1a01e184755ff76d484677a8181828e5fc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC16700181 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Good King Wenceslas
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Danceability
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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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    additional property: Loudness (dB)
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Beethoven: Symphony No. 9 in D Minor, Op. 125 (Live)
type: MusicAlbum
date published: 2016-04-29
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  type: MusicRecording
  duration: PT23M17S
  duration ms: 1397280
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Benita Valente
  by artist: Janice Taylor
  by artist: Richard Leech
  by artist: William Stone
  by artist: Atlanta Symphony Orchestra
  by artist: Robert Shaw
  in album: Beethoven: Symphony No. 9 in D Minor, Op. 125 (Live)
    type: MusicAlbum
    date published: 2016-04-29
  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: CopyrightID
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x5d1999a526d6b4346b50947cfdffd370f32c9d7b328b24a7ee77f8baf6467112
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960435
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USXM71600004
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1999a526d6b4346b50947cfdffd370f32c9d7b328b24a7ee77f8baf6467112. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USXM71600004 — a six-check JSON result.
    date published: 2026-07-31T16:33:26Z
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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
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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: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Live from the Marlboro Music Festival - Respighi, Cuckson & Shostakovich
type: MusicAlbum
date published: 2011-08-02

Classical Easter
type: MusicAlbum
date published: 2019-04-05

Songs of Debussy and Fauré
type: MusicAlbum
date published: 2010-09-07

Songs of Debussy and Faure
type: MusicAlbum
date published: 2010-09-07

String Quartets with Soprano
type: MusicAlbum
date published: 2006-01-01

Larsen: String Symphony - Songs of Light and Love
type: MusicAlbum
date published: 2000-06-16

Schoenberg: Pierrot Lunaire - Dallapiccola: Concerto per la notte di Natale dell'anno & Parole di San Paolo
type: MusicAlbum
date published: 1995-01-01

Love Songs & Lullabies for Guitar and Voice
type: MusicAlbum
date published: 1991-01-01

Roberto Gerhard, Schahrazada, Cancionero de Pedrell
type: MusicAlbum
date published: 1988-01-01

Schoenberg: The Five String Quartets (2024 Remastered Version)
type: MusicAlbum
date published: 1977-08-01

Brahms: Trio for Piano, Violin and Horn, Op. 40 - Schubert: Auf dem Strom, D 943
type: MusicAlbum
date published: 1961-01-01

Brahms: Liebeslieder-Walzer, Op. 52 - Schubert: Der Hirt auf dem Felsen, D 965
type: MusicAlbum
date published: 1961-01-01

Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
type: MusicAlbum
date published: 1990-01-01
track: Mass No. 2 in G Major, D. 167: I. Kyrie
  type: MusicRecording
  duration: PT3M38S
  duration ms: 218000
  explicit: false
  by artist: Franz Schubert
  by artist: Atlanta Symphony Orchestra
  by artist: Robert Shaw
  by artist: Atlanta Symphony Orchestra Chamber Chorus
  by artist: William Stone
  by artist: Dawn Upshaw
  by artist: David Gordon
  in album: Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
    type: MusicAlbum
    date published: 1990-01-01
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: USTE10301212
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T14:36:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1292d489cbdbd3d6ddcc4cada40ba3422363e1d28c65d9b8b688ca6e55ae2f89
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960121
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10301212
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T15:22:21Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1292d489cbdbd3d6ddcc4cada40ba3422363e1d28c65d9b8b688ca6e55ae2f89. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10301212 — a six-check JSON result.
    date published: 2026-07-29T15:22:21Z
  audio: Mass No. 2 in G Major, D. 167: I. Kyrie
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 110.948
    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: 0.154
    additional property: Energy
      type: PropertyValue
      value: 0.136
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.982
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.363
    additional property: Liveness
      type: PropertyValue
      value: 0.115
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.105
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.765
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Mass No. 2 in G Major, D. 167: II. Gloria
  type: MusicRecording
  duration: PT2M54S
  duration ms: 174840
  explicit: false
  by artist: Franz Schubert
  by artist: Atlanta Symphony Orchestra
  by artist: Robert Shaw
  by artist: Atlanta Symphony Orchestra Chamber Chorus
  by artist: William Stone
  by artist: Dawn Upshaw
  by artist: David Gordon
  in album: Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
    type: MusicAlbum
    date published: 1990-01-01
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: USTE10302212
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T09:26:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc4f37066d8d7c96e2359c891e801ec3fe512a23db406b0438ec1b0a24bb98aea
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  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/USTE10302212
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f37066d8d7c96e2359c891e801ec3fe512a23db406b0438ec1b0a24bb98aea. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10302212 — a six-check JSON result.
    date published: 2026-07-02T03:55:08Z
  audio: Mass No. 2 in G Major, D. 167: II. Gloria
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.031
    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: 0.347
    additional property: Energy
      type: PropertyValue
      value: 0.25
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.947
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.568
    additional property: Liveness
      type: PropertyValue
      value: 0.189
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.162
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.974
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Mass No. 2 in G Major, D. 167: III. Credo
  type: MusicRecording
  duration: PT6M8S
  duration ms: 368600
  explicit: false
  by artist: Franz Schubert
  by artist: Atlanta Symphony Orchestra
  by artist: Robert Shaw
  by artist: Atlanta Symphony Orchestra Chamber Chorus
  by artist: William Stone
  by artist: Dawn Upshaw
  by artist: David Gordon
  in album: Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: USTE10303212
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Mass No. 2 in G Major, D. 167: III. Credo
track: Mass No. 2 in G Major, D. 167: IV. Sanctus
track: Mass No. 2 in G Major, D. 167: V. Benedictus
track: Mass No. 2 in G Major, D. 167: VI. Agnus Dei
track: Mass No. 6 in E-Flat Major, D. 950: I. Kyrie
track: Mass No. 6 in E-Flat Major, D. 950: II. Gloria
track: Mass No. 6 in E-Flat Major, D. 950: III. Credo
track: Mass No. 6 in E-Flat Major, D. 950: IV. Sanctus
track: Mass No. 6 in E-Flat Major, D. 950: V. Benedictus
track: Mass No. 6 in E-Flat Major, D. 950: VI. Agnus Dei

David Gordon
type: MusicGroup

Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
type: MusicAlbum
date published: 1990-01-01

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-29T16:54:08+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xf8c4f4fa533c37b312731c2f899e8e2bf81379827a7982261f9cae4451e6f1f9

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960138

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960138

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10303212

OTSTimestamp
type: PropertyValue
value: 2026-07-29T19:35:34Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c4f4fa533c37b312731c2f899e8e2bf81379827a7982261f9cae4451e6f1f9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10303212 — a six-check JSON result.
date published: 2026-07-29T19:35:34Z

Mass No. 2 in G Major, D. 167: III. Credo
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 94.724
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: 0.193
additional property: Energy
  type: PropertyValue
  value: 0.098
additional property: Speechiness
  type: PropertyValue
  value: 0.042
additional property: Acousticness
  type: PropertyValue
  value: 0.986
additional property: Instrumentalness
  type: PropertyValue
  value: 0.911
additional property: Liveness
  type: PropertyValue
  value: 0.129
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.061
additional property: Loudness (dB)
  type: PropertyValue
  value: -26.255
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Mass No. 2 in G Major, D. 167: IV. Sanctus
type: MusicRecording
duration: PT1M31S
duration ms: 91693
explicit: false
by artist: Franz Schubert
by artist: Atlanta Symphony Orchestra
by artist: Robert Shaw
by artist: Atlanta Symphony Orchestra Chamber Chorus
by artist: William Stone
by artist: Dawn Upshaw
by artist: David Gordon
in album: Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
  type: MusicAlbum
  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USTE10304212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T16:09:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe1d3851e0fa37532072ed88522cb9cef7ac5a12245ba13311c09ec61c85aa12
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10304212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:13:37Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1d3851e0fa37532072ed88522cb9cef7ac5a12245ba13311c09ec61c85aa12. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10304212 — a six-check JSON result.
  date published: 2026-07-29T21:13:37Z
audio: Mass No. 2 in G Major, D. 167: IV. Sanctus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 170.494
  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: 0.235
  additional property: Energy
    type: PropertyValue
    value: 0.249
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.083
  additional property: Liveness
    type: PropertyValue
    value: 0.147
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.297
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.923
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mass No. 2 in G Major, D. 167: V. Benedictus
type: MusicRecording
duration: PT4M16S
duration ms: 256733
explicit: false
by artist: Franz Schubert
by artist: Atlanta Symphony Orchestra
by artist: Robert Shaw
by artist: Atlanta Symphony Orchestra Chamber Chorus
by artist: William Stone
by artist: Dawn Upshaw
by artist: David Gordon
in album: Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
  type: MusicAlbum
  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USTE10305212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T12:59:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1dfcda4ddb3f0f70d706a75e9ffb91ceeeda7764b9ec5d0ff79366310f357c78
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960108
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960108
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10305212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T13:09:35Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfcda4ddb3f0f70d706a75e9ffb91ceeeda7764b9ec5d0ff79366310f357c78. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10305212 — a six-check JSON result.
  date published: 2026-07-29T13:09:35Z
audio: Mass No. 2 in G Major, D. 167: V. Benedictus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.874
  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: 0.241
  additional property: Energy
    type: PropertyValue
    value: 0.138
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.946
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.321
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.109
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.252
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mass No. 2 in G Major, D. 167: VI. Agnus Dei
type: MusicRecording
duration: PT5M50S
duration ms: 350373
explicit: false
by artist: Franz Schubert
by artist: Atlanta Symphony Orchestra
by artist: Robert Shaw
by artist: Atlanta Symphony Orchestra Chamber Chorus
by artist: William Stone
by artist: Dawn Upshaw
by artist: David Gordon
in album: Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
  type: MusicAlbum
  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USTE10306212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:25:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x59607d54d0d2e2baaff12bd1538d88fda6dfbb3aa5044d5cad9e714e13b712ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957048
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957048
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10306212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T14:18:56Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59607d54d0d2e2baaff12bd1538d88fda6dfbb3aa5044d5cad9e714e13b712ab. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10306212 — a six-check JSON result.
  date published: 2026-07-07T14:18:56Z
audio: Mass No. 2 in G Major, D. 167: VI. Agnus Dei
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.406
  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: 0.228
  additional property: Energy
    type: PropertyValue
    value: 0.038
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.054
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.971
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mass No. 6 in E-Flat Major, D. 950: I. Kyrie
type: MusicRecording
duration: PT6M21S
duration ms: 381066
explicit: false
by artist: Franz Schubert
by artist: Atlanta Symphony Orchestra
by artist: Robert Shaw
by artist: Benita Valente
by artist: Marietta Simpson
by artist: Glenn Siebert
by artist: Jon Humphrey
by artist: Myron Myers
in album: Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
  type: MusicAlbum
  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USTE10307212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T17:54:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e833945442e65af42150c150554972dc9fb26fb1347ffd0239927cc19147e7c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960291
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960291
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10307212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T18:23:33Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e833945442e65af42150c150554972dc9fb26fb1347ffd0239927cc19147e7c. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10307212 — a six-check JSON result.
  date published: 2026-07-30T18:23:33Z
audio: Mass No. 6 in E-Flat Major, D. 950: I. Kyrie
  type: AudioObject
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  additional property: Danceability
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  additional property: Energy
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.859
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.503
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mass No. 6 in E-Flat Major, D. 950: II. Gloria
type: MusicRecording
duration: PT13M42S
duration ms: 822093
explicit: false
by artist: Franz Schubert
by artist: Atlanta Symphony Orchestra
by artist: Robert Shaw
by artist: Benita Valente
by artist: Marietta Simpson
by artist: Glenn Siebert
by artist: Jon Humphrey
by artist: Myron Myers
in album: Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
  type: MusicAlbum
  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USTE10308212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:36:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xab90f87a3cff4e706f03a1d98deb30514f4451525bc45b1a0efa8e10763b2cfe
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/USTE10308212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab90f87a3cff4e706f03a1d98deb30514f4451525bc45b1a0efa8e10763b2cfe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10308212 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mass No. 6 in E-Flat Major, D. 950: II. Gloria
  type: AudioObject
  additional property: Tempo (BPM)
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  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
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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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    value: 0.065
  additional property: Loudness (dB)
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    value: -23.521
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Mass No. 6 in E-Flat Major, D. 950: III. Credo
type: MusicRecording
duration: PT14M56S
duration ms: 896773
explicit: false
by artist: Franz Schubert
by artist: Atlanta Symphony Orchestra
by artist: Robert Shaw
by artist: Benita Valente
by artist: Marietta Simpson
by artist: Glenn Siebert
by artist: Jon Humphrey
by artist: Myron Myers
in album: Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
  type: MusicAlbum
  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USTE10309212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:30:03+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x9a05c6ae3a401d392c813d1d99e62d73b32b19f6b33871610f068bae601095a5
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10309212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a05c6ae3a401d392c813d1d99e62d73b32b19f6b33871610f068bae601095a5. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10309212 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Mass No. 6 in E-Flat Major, D. 950: III. Credo
  type: AudioObject
  additional property: Tempo (BPM)
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    type: PropertyValue
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  additional property: Energy
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.049
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.884
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
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Mass No. 6 in E-Flat Major, D. 950: IV. Sanctus
type: MusicRecording
duration: PT3M37S
duration ms: 217866
explicit: false
by artist: Franz Schubert
by artist: Atlanta Symphony Orchestra
by artist: Robert Shaw
by artist: Benita Valente
by artist: Marietta Simpson
by artist: Glenn Siebert
by artist: Jon Humphrey
by artist: Myron Myers
in album: Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
  type: MusicAlbum
  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USTE10310212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:15:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x883217c1619bf5ba2235a2f2dd5f829bdb0e107f566223eecb35311312753dd2
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 957120
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/USTE10310212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883217c1619bf5ba2235a2f2dd5f829bdb0e107f566223eecb35311312753dd2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10310212 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Mass No. 6 in E-Flat Major, D. 950: IV. Sanctus
  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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    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)
    type: PropertyValue
    value: -19.876
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mass No. 6 in E-Flat Major, D. 950: V. Benedictus
type: MusicRecording
duration: PT5M21S
duration ms: 321093
explicit: false
by artist: Franz Schubert
by artist: Atlanta Symphony Orchestra
by artist: Robert Shaw
by artist: Benita Valente
by artist: Marietta Simpson
by artist: Glenn Siebert
by artist: Jon Humphrey
by artist: Myron Myers
in album: Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
  type: MusicAlbum
  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USTE10311212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T14:21:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x951afff4837322f3788d26bc26d41cb46c315757bdbba9fd06e9d90688403199
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10311212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951afff4837322f3788d26bc26d41cb46c315757bdbba9fd06e9d90688403199. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10311212 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Mass No. 6 in E-Flat Major, D. 950: V. Benedictus
  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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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.158
  additional property: Energy
    type: PropertyValue
    value: 0.164
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.739
  additional property: Liveness
    type: PropertyValue
    value: 0.132
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.124
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.191
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
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Mass No. 6 in E-Flat Major, D. 950: VI. Agnus Dei
type: MusicRecording
duration: PT9M18S
duration ms: 558466
explicit: false
by artist: Franz Schubert
by artist: Atlanta Symphony Orchestra
by artist: Robert Shaw
by artist: Benita Valente
by artist: Marietta Simpson
by artist: Glenn Siebert
by artist: Jon Humphrey
by artist: Myron Myers
in album: Schubert: Mass No. 2 in G Major, D. 167 & Mass No. 6 in E-Flat Major, D. 950
  type: MusicAlbum
  date published: 1990-01-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USTE10312212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T20:18:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba0975867e8158e7ee41bb912467ffecb7ee127f7f7e087cad4018856aa8da70
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960463
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960463
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10312212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:42:35Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0975867e8158e7ee41bb912467ffecb7ee127f7f7e087cad4018856aa8da70. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USTE10312212 — a six-check JSON result.
  date published: 2026-07-31T20:42:35Z
audio: Mass No. 6 in E-Flat Major, D. 950: VI. Agnus Dei
  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
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.159
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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Opera for Christmas: Songs and Carols
type: MusicAlbum
date published: 2016-11-04
track: Hark! The Herald Angels Sing
  type: MusicRecording
  duration: PT2M34S
  duration ms: 154040
  explicit: false
  by artist: Mario Lanza
  by artist: Jeff Alexander Orchestra
  by artist: The Jeff Alexander Choir
  in album: Opera for Christmas: Songs and Carols
    type: MusicAlbum
    date published: 2016-11-04
  isrc code: USBB15601036
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T15:33:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4e0774f85b80462982616d4919e9bb7f816ba020a48eaddfb2f7d9e2553beb94
  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/USBB15601036
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0774f85b80462982616d4919e9bb7f816ba020a48eaddfb2f7d9e2553beb94. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBB15601036 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Hark! The Herald Angels Sing
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 113.11
    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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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
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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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Leonard Slatkin conducts Vaughan Williams
type: MusicAlbum
date published: 1993

The Juilliard String Quartet Plays Schoenberg
type: MusicAlbum
date published: 1993

Silent Nights
type: MusicAlbum
date published: 2001-09-25
track: Silent Night
  type: MusicRecording
  duration: PT2M0S
  duration ms: 120306
  explicit: false
  by artist: Franz Xaver Gruber
  by artist: The Choir Of Trinity College, Cambridge
  by artist: Richard Marlow
  in album: Silent Nights
    type: MusicAlbum
    date published: 2001-09-25
  isrc code: GBARU8800096
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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    date published: 2026-07-29T21:09:47Z
  audio: Silent Night
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Vaughan Williams: A Sea Symphony
type: MusicAlbum
date published: 1993

Study Liszt
type: MusicAlbum
date published: 2021-01-25

Bach Italian Transcriptions: Concerto for Four Harpsichords (Vivaldi)- Tilge, Höchster, meine Sünden (Pergolesi)
type: MusicAlbum
date published: 2007-09-01
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  by artist: Phebe Craig
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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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T06:42:11Z
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Haydn: The Seven Last Words of Christ, Hob. XX:2
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date published: 1990-08-28
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  duration: PT6M35S
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  by artist: Joseph Haydn
  by artist: Juilliard String Quartet
  by artist: Jan DeGaetani
  by artist: Jon Humphrey
  by artist: Benita Valente
  by artist: Thomas Paul
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    date published: 1990-08-28
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-31T18:48:12Z
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Brahms: Liebeslieder Walzer, Op. 52; Schubert: The Shepherd On the Rock, Op. 129 (Der Hirt auf dem Felsen, D 965)
type: MusicAlbum
date published: 1961

The Art of Robert Bloom: Selected Arias with Oboe Obbligato, Vol. II
type: MusicAlbum
date published: 2001-06-01

Music of Schoenberg, Dallapiccola, Crumb, Boulez & Others
type: MusicAlbum
date published: 1995-01-01

Looking to the East
type: MusicAlbum
date published: 2000-01-01

Earl Kim
type: MusicAlbum
date published: 2001-01-01

Jan De Gaetani in Concert, Vol. 3 (Live)
type: MusicAlbum
date published: 1995-04-01

Music of David Del Tredici
type: MusicAlbum
date published: 2007-01-01