New London Chamber Choir
type: MusicGroup
genre: choral
genre: medieval
genre: requiem
popularity: 3
followers: 85
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-20T12:10:20Z
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album: Xenakis: Choral Music
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  date published: 1998-02-01
album: Stravinsky: The Flood; Abraham and Isaac; Variations; Requiem Canticles / Wuorinen: A Reliquary for Igor Stravinsky
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  track: Variations (1963-64): Aldous Huxley in memoriam
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    by artist: London Sinfonietta
    by artist: Oliver Knussen
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      type: MusicAlbum
      date published: 1995-01-01
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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
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-02T05:09:12Z
    audio: Variations (1963-64): Aldous Huxley in memoriam
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album: The Promise of Ages - A Christmas Collection
  type: MusicAlbum
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album: A Golden Treasury of Renaissance Music on Original Instruments
  type: MusicAlbum
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  track: Amor Dormiglione
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    by artist: Musica Secreta
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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
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:22:41Z
    audio: Amor Dormiglione
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album: Lili Boulanger: Songs (Hyperion French Song Edition)
album: High Renaissance: Choral Polyphony from the Low Countries
album: Suk: The Ripening & Symphony No. 1
album: Janáček: Choral Music
album: Poulenc: Secular Choral Music
album: The Brightest Heaven of Invention: Flemish Polyphony of the High Renaissance
album: Stravinsky: Les Noces & Other Choral Music
album: Bergman: Hathor Suite, Nox, Bim Bam Bum & Fåglarna
album: Pierre De La Rue: Requiem - Josquin Desprez: Mass - Hercules dux Ferrariae - Deploration
album: Ruth Crawford Seeger: Music for Small Orchestra; Study in Mixed Accents; Three Songs; Three Chants; String Quartet; Two Ricercari; Andante for String Orchestra; Rissolty Rossolty; Suite for W
album: Dallapiccola: Canti di prigionia, Frammenti di Saffo ed altre opere vocali
album: James Wood: 2 Men Meet, Each Presuming the Other to Be from a Distant Planet
album: Trandafilovski: Five
album: Branko Lazarin, Hrvatski Suvremeni Skladatelji

Three Chants: 1. To An Unkind God
type: MusicRecording
duration: PT2M35S
duration ms: 155000
explicit: false
by artist: Ruth Crawford Seeger
by artist: James Wood
by artist: New London Chamber Choir
in album: Ruth Crawford Seeger: Music for Small Orchestra; Study in Mixed Accents; Three Songs; Three Chants; String Quartet; Two Ricercari; Andante for String Orchestra; Rissolty Rossolty; Suite for W
  type: MusicAlbum
  date published: 1997-01-01
popularity: 1
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
audio: Three Chants: 1. To An Unkind God
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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

Three Chants: 2. To An Angel
type: MusicRecording
duration: PT2M54S
duration ms: 174000
explicit: false
by artist: Ruth Crawford Seeger
by artist: New London Chamber Choir
by artist: James Wood
in album: Ruth Crawford Seeger: Music for Small Orchestra; Study in Mixed Accents; Three Songs; Three Chants; String Quartet; Two Ricercari; Andante for String Orchestra; Rissolty Rossolty; Suite for W
  type: MusicAlbum
  date published: 1997-01-01
popularity: 2
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
audio: Three Chants: 2. To An Angel
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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

Three Chants: 3. To A Kind God
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duration: PT3M48S
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by artist: James Wood
by artist: New London Chamber Choir
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popularity: 1
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T06:42:11Z
audio: Three Chants: 3. To A Kind God
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additional property: OTSVerifyInstructions
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Dallapiccola: 6 Cori di Michelangelo Buonarroti il giovane: No. 1, Il coro delle Malmaritate
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by artist: James Wood
by artist: New London Chamber Choir
by artist: Nicola Jansen
by artist: Lorraine Gwynne
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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: Dallapiccola: 6 Cori di Michelangelo Buonarroti il giovane: No. 1, Il coro delle Malmaritate
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Dallapiccola: 6 Cori di Michelangelo Buonarroti il giovane: No. 2, Il coro dei Malammogliati
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explicit: false
by artist: Luigi Dallapiccola
by artist: James Wood
by artist: New London Chamber Choir
by artist: Nicola Jansen
by artist: Lorraine Gwynne
in album: Dallapiccola: Canti di prigionia, Frammenti di Saffo ed altre opere vocali
  type: MusicAlbum
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b85351cec5c190babb5a1320209cc4559137adc3cbe04854b57a88781cd3e6. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209212802.
  date published: 2026-07-31T09:50:11Z
audio: Dallapiccola: 6 Cori di Michelangelo Buonarroti il giovane: No. 2, Il coro dei Malammogliati
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additional property: CopyrightID
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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

Speechiness
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Acousticness
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Instrumentalness
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Liveness
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Valence (Positivity)
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Loudness (dB)
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Key Name
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Lili Boulanger: Songs (Hyperion French Song Edition)
type: MusicAlbum
date published: 1994-09-01

High Renaissance: Choral Polyphony from the Low Countries
type: MusicAlbum
date published: 2019-05-03

Suk: The Ripening & Symphony No. 1
type: MusicAlbum
date published: 2010-09-01

Janáček: Choral Music
type: MusicAlbum
date published: 1997-03-01

Poulenc: Secular Choral Music
type: MusicAlbum
date published: 1995-10-01

The Brightest Heaven of Invention: Flemish Polyphony of the High Renaissance
type: MusicAlbum
date published: 1992-01-01

Stravinsky: Les Noces & Other Choral Music
type: MusicAlbum
date published: 1991-10-01

Bergman: Hathor Suite, Nox, Bim Bam Bum & Fåglarna
type: MusicAlbum
date published: 1986-06-01

Pierre De La Rue: Requiem - Josquin Desprez: Mass - Hercules dux Ferrariae - Deploration
type: MusicAlbum
date published: 1986-01-01

Ruth Crawford Seeger: Music for Small Orchestra; Study in Mixed Accents; Three Songs; Three Chants; String Quartet; Two Ricercari; Andante for String Orchestra; Rissolty Rossolty; Suite for W
type: MusicAlbum
date published: 1997-01-01
track: Music for Small Orchestra (1926): 1. Slow, pensive
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  by artist: Ruth Crawford Seeger
  by artist: Schönberg Ensemble
  by artist: Oliver Knussen
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    date published: 1997-01-01
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe388b8bc95479fab2dda3e37d666647a26ab87bd62cabb39a5b016251a8ed2ab. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059604381.
    date published: 2026-07-08T03:20:19Z
  audio: Music for Small Orchestra (1926): 1. Slow, pensive
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track: Music for Small Orchestra (1926): 2. In roguish humor. Not fast
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  by artist: Ruth Crawford Seeger
  by artist: Schönberg Ensemble
  by artist: Oliver Knussen
  in album: Ruth Crawford Seeger: Music for Small Orchestra; Study in Mixed Accents; Three Songs; Three Chants; String Quartet; Two Ricercari; Andante for String Orchestra; Rissolty Rossolty; Suite for W
    type: MusicAlbum
    date published: 1997-01-01
  popularity: 1
  isrc code: DEF059604382
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:22:41Z
  audio: Music for Small Orchestra (1926): 2. In roguish humor. Not fast
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track: Piano Study in Mixed Accents (1930)
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  by artist: Ruth Crawford Seeger
  by artist: Reinbert de Leeuw
  in album: Ruth Crawford Seeger: Music for Small Orchestra; Study in Mixed Accents; Three Songs; Three Chants; String Quartet; Two Ricercari; Andante for String Orchestra; Rissolty Rossolty; Suite for W
    type: MusicAlbum
    date published: 1997-01-01
  popularity: 1
  isrc code: DEF059604400
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Piano Study in Mixed Accents (1930)
track: Three Songs: 1. Rat Riddles
track: String Quartet 1931: 2. Leggiero
track: String Quartet 1931: 4. Allegro possibile
track: Andante for Strings
track: Rissolty Rossolty
track: John Hardy (1940)
track: Three Chants: 1. To An Unkind God
track: Three Chants: 2. To An Angel
track: Three Chants: 3. To A Kind God

OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059604400

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

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08044852544f9dd16ba5aad2e59161190605cf63ded3f091240475f6fac2b8f3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059604400.
date published: 2026-07-08T03:20:19Z

Piano Study in Mixed Accents (1930)
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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
  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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additional property: Key Name
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additional property: Mode Name
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Three Songs: 1. Rat Riddles
type: MusicRecording
duration: PT3M18S
duration ms: 198000
explicit: false
by artist: Ruth Crawford Seeger
by artist: Lucy Shelton
by artist: Schönberg Ensemble
by artist: Oliver Knussen
in album: Ruth Crawford Seeger: Music for Small Orchestra; Study in Mixed Accents; Three Songs; Three Chants; String Quartet; Two Ricercari; Andante for String Orchestra; Rissolty Rossolty; Suite for W
  type: MusicAlbum
  date published: 1997-01-01
popularity: 1
isrc code: DEF059604411
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: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe8397b8b22adb13bd426308711aafa62b7ed55378363d3013627986ed23618. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059604411.
  date published: 2026-07-08T03:22:41Z
audio: Three Songs: 1. Rat Riddles
  type: AudioObject
  additional property: Tempo (BPM)
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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: Valence (Positivity)
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String Quartet 1931: 2. Leggiero
type: MusicRecording
duration: PT2M4S
duration ms: 124133
explicit: false
by artist: Ruth Crawford Seeger
by artist: Marijke van Kooten
by artist: Helen Hulst
by artist: Karin Dolman
by artist: Hans Woudenberg
in album: Ruth Crawford Seeger: Music for Small Orchestra; Study in Mixed Accents; Three Songs; Three Chants; String Quartet; Two Ricercari; Andante for String Orchestra; Rissolty Rossolty; Suite for W
  type: MusicAlbum
  date published: 1997-01-01
popularity: 1
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1deb767c6d6c84733c20190db0042ca43d1cac488698c44dae48775ba6df8106. 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/DEF059604422.
  date published: 2026-07-08T03:53:27Z
audio: String Quartet 1931: 2. Leggiero
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String Quartet 1931: 4. Allegro possibile
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subject of: OpenTimestamps Proof of Existence
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Andante for Strings
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Rissolty Rossolty
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John Hardy (1940)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: John Hardy (1940)
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Dallapiccola: Canti di prigionia, Frammenti di Saffo ed altre opere vocali
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track: Dallapiccola: 6 Cori di Michelangelo Buonarroti il giovane: No. 1, Il coro delle Malmaritate
track: Dallapiccola: 6 Cori di Michelangelo Buonarroti il giovane: No. 2, Il coro dei Malammogliati

James Wood: 2 Men Meet, Each Presuming the Other to Be from a Distant Planet
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date published: 2012-04-01

Trandafilovski: Five
type: MusicAlbum
date published: 2015-08-28

Branko Lazarin, Hrvatski Suvremeni Skladatelji
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date published: 2015-01-19