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description: thumb|Gilbert Kalish after performing at a concert in honor of the 90th birthday of George Crumb at Alice Tully Hall Gilbert Kalish (born July 2, 1935) is an American pianist. He is best known for cha
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album: Complete Crumb Edition, Vol. 21
album: Schubert: Winterreise, Op. 89, D. 911
album: Music@Menlo, Around Dvořák, Vol. 3 (Live)
album: Haydn, Beethoven & Schubert: Piano Works
album: From The Heart: 20th Century Music for Bassoon and Piano
album: Forgotten Americans
album: Beethoven, Debussy, Poulenc & Others: Songs (Live)
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album: Debussy, Janáček, Hindemith, Cowell: In the Shadow of World War I
album: Hindemith: Quartet for Clarinet, Violin, Cello and Piano & Shostakovich: Piano Quintet in G Minor, Op. 57
album: Russian Songs - Rachmaninoff, Mussorgsky, Tchaikovsky
album: Romance & Caprice: Works for Solo Bassoon & Piano
album: Brahms: Complete Cello Sonatas Plus Intermezzi, Op. 117, And Trio In A Minor, Op. 114
album: Brahms Songs
album: Hale Smith: Innerflexions - Sheila Silver: Sonata for Cello and Piano - Joel Hoffman: Duo for Viola and Piano
album: Beethoven: Cello Sonatas & Variations
album: Joseph Haydn: Piano Music
album: Charles Ives: Piano Sonata No. 2 "Concord, Mass. 1840"
album: Riegger: Music for Piano & Winds
album: Joseph Haydn: Piano Music Volume V
album: Joseph Haydn: Piano Music Volume IV
album: Joseph Haydn: Piano Music Volume III
album: Joseph Haydn: Piano Music Volume II
album: Joseph Haydn: Piano Music Volume I
album: Ives: 114 Songs - George Crumb: Apparition
album: Ralph Shapey/Faye Ellen Silverman
album: Caroline Shaw: Narrow Sea
album: Schubert: Schwanengesang, D. 957 - Schumann: Dichterliebe, Op. 48
album: Charles Ives: The Sonatas for Violin and Piano, Vol. 2
album: Charles Ives: The Sonatas for Violin and Piano, Vol. 1
track: 3 Places in New England: No. 2 Putnam's Camp, Redding, Connecticut
track: 3 Places in New England: No. 1 The "St. Gaudens" in Boston Common (Col. Shaw and his Colored Regiment)
track: 3 Places in New England: No. 3 From "The Housatonic at Stockbridge" by Robert Underwood Johnson

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From The Heart: 20th Century Music for Bassoon and Piano
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Forgotten Americans
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Beethoven, Debussy, Poulenc & Others: Songs (Live)
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Meyer Kupferman
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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  by artist: New York String Quartet
  by artist: Paul Zukofsky
  by artist: Gilbert Kalish
  in album: Crumb: Black Angels - Jones: String Quartet No. 6 and Sonatina for Violin & Piano
    type: MusicAlbum
    date published: 2010-02-16
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZC71128305
  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 0x6cfa9a5ffe52b66559098dcf85a716cb9127b5e7f2ae58327fa4e7c1cfd9ea20. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZC71128305 — a six-check JSON result.
    date published: 2026-07-31T22:27:44Z
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  by artist: George Crumb
  by artist: New York String Quartet
  by artist: Paul Zukofsky
  by artist: Gilbert Kalish
  in album: Crumb: Black Angels - Jones: String Quartet No. 6 and Sonatina for Violin & Piano
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  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
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track: Black Angels, Pt. 3 Return: XIII. Threnody III. Night of the Electric Insects

OTSHash
type: PropertyValue

OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957120

OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZC71128311

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

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 0x8bb74ae932bcd7476a5fd9b772603e44275bb97b50d2ce17c962486f447c39a1. 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/USZC71128311 — a six-check JSON result.
date published: 2026-07-08T03:22:41Z

Black Angels, Pt. 3 Return: XI. Ancient Voices
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: Key Name
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additional property: Mode Name
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Black Angels, Pt. 3 Return: XIII. Threnody III. Night of the Electric Insects
type: MusicRecording
duration: PT4M26S
duration ms: 266257
explicit: false
by artist: George Crumb
by artist: New York String Quartet
by artist: Paul Zukofsky
by artist: Gilbert Kalish
in album: Crumb: Black Angels - Jones: String Quartet No. 6 and Sonatina for Violin & Piano
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3333da6d78aefb0bf362d2ad114d53dcac4869e594db2c3d14dbaf389db8e0db. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZC71128313 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Black Angels, Pt. 3 Return: XIII. Threnody III. Night of the Electric Insects
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French Songs: Chausson, Debussy, Ravel
type: MusicAlbum
date published: 2008-08-05
track: Le Charme, Op. 2, No. 2
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  duration ms: 102773
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  by artist: Jan DeGaetani
  by artist: Gilbert Kalish
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  popularity: 10
  genre: late-romantic-era
  genre: french-romanticism
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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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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA220810660
  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 0x9b81e1e61e0c5f58e330bc274e13ba7993c2072058ebcc4d77e280429fc30986. 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/USA220810660 — a six-check JSON result.
    date published: 2026-07-29T19:35:34Z
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    additional property: Loudness (dB)
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Ralph Shapey: Songs of Life
type: MusicAlbum
date published: 2008-07-29

Debussy, Janáček, Hindemith, Cowell: In the Shadow of World War I
type: MusicAlbum
date published: 2008-04-07

Hindemith: Quartet for Clarinet, Violin, Cello and Piano & Shostakovich: Piano Quintet in G Minor, Op. 57
type: MusicAlbum
date published: 2008-03-17

Russian Songs - Rachmaninoff, Mussorgsky, Tchaikovsky
type: MusicAlbum
date published: 2008-03-11

Romance & Caprice: Works for Solo Bassoon & Piano
type: MusicAlbum
date published: 2006-07-23

Brahms: Complete Cello Sonatas Plus Intermezzi, Op. 117, And Trio In A Minor, Op. 114
type: MusicAlbum
date published: 2006-01-01

Brahms Songs
type: MusicAlbum
date published: 2006-01-01

Hale Smith: Innerflexions - Sheila Silver: Sonata for Cello and Piano - Joel Hoffman: Duo for Viola and Piano
type: MusicAlbum
date published: 2006

Beethoven: Cello Sonatas & Variations
type: MusicAlbum
date published: 2006

Joseph Haydn: Piano Music
type: MusicAlbum
date published: 2005-11-01

Charles Ives: Piano Sonata No. 2 "Concord, Mass. 1840"
type: MusicAlbum
date published: 2005-11-01
track: "The Alcotts" - Ives: Piano Sonata No. 2, "Concord. Mass., 1840-60": Third Movement,
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  duration: PT6M6S
  duration ms: 366200
  explicit: false
  by artist: Charles Ives
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960138
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO17733703
  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 0x31db750fec569b774e0a463d33681650fd8f2f7aecac9605b67aa87e8406dbb3. 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/USNO17733703 — a six-check JSON result.
    date published: 2026-07-29T19:35:34Z
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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: Valence (Positivity)
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    additional property: Loudness (dB)
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Riegger: Music for Piano & Winds
type: MusicAlbum
date published: 1996-12-01

Joseph Haydn: Piano Music Volume V
type: MusicAlbum
date published: 1987-06-15
track: Sonata in G Major, Hob. XVI:27
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  duration: PT13M11S
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  by artist: Gilbert Kalish
  in album: Joseph Haydn: Piano Music Volume V
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    date published: 1987-06-15
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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
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  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 0x72ca36ad885129724a3381cc0bcbf85e07a889d34d4fc86fdeaf572ebeab0c4d. 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/USNO10900147 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Joseph Haydn: Piano Music Volume IV
type: MusicAlbum
date published: 1987-06-15

Joseph Haydn: Piano Music Volume III
type: MusicAlbum
date published: 1987-06-15

Joseph Haydn: Piano Music Volume II
type: MusicAlbum
date published: 1987-06-15
track: Sonata in D, Hob. XVI:37
  type: MusicRecording
  duration: PT13M12S
  duration ms: 792666
  explicit: false
  by artist: Joseph Haydn
  by artist: Gilbert Kalish
  in album: Joseph Haydn: Piano Music Volume II
    type: MusicAlbum
    date published: 1987-06-15
  isrc code: USNO10900135
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T19:53:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6e30899058811b770cb3654cfaa39df7d55066c374686749a1b8342ed1c7bacc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    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/USNO10900135
  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 0x6e30899058811b770cb3654cfaa39df7d55066c374686749a1b8342ed1c7bacc. 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/USNO10900135 — a six-check JSON result.
    date published: 2026-07-08T03:22:41Z
  audio: Sonata in D, Hob. XVI:37
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.848
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.384
    additional property: Energy
      type: PropertyValue
      value: 0.267
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.985
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.902
    additional property: Liveness
      type: PropertyValue
      value: 0.103
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.215
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.397
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Joseph Haydn: Piano Music Volume I
type: MusicAlbum
date published: 1987-06-15

Ives: 114 Songs - George Crumb: Apparition
type: MusicAlbum
date published: 1987-06-01

Ralph Shapey/Faye Ellen Silverman
type: MusicAlbum
date published: 1987-01-01

Caroline Shaw: Narrow Sea
type: MusicAlbum
date published: 2021-01-22
track: Narrow Sea, Pt. 1
  type: MusicRecording
  duration: PT3M28S
  duration ms: 208301
  explicit: false
  by artist: Caroline Shaw
  by artist: Dawn Upshaw
  by artist: Gilbert Kalish
  by artist: Sō Percussion
  in album: Caroline Shaw: Narrow Sea
    type: MusicAlbum
    date published: 2021-01-22
  popularity: 4
  isrc code: USNO12000268
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T16:35:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2f306cce3d0384929fdcd297c84c6e532217ce92772845c94d042b7ec50437a4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960284
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960284
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000268
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T17:23:26Z
  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 0x2f306cce3d0384929fdcd297c84c6e532217ce92772845c94d042b7ec50437a4. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USNO12000268 — a six-check JSON result.
    date published: 2026-07-30T17:23:26Z
  audio: Narrow Sea, Pt. 1
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 114.737
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.593
    additional property: Energy
      type: PropertyValue
      value: 0.347
    additional property: Speechiness
      type: PropertyValue
      value: 0.101
    additional property: Acousticness
      type: PropertyValue
      value: 0.947
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.117
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.132
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.295
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Narrow Sea, Pt. 2
  type: MusicRecording
  duration: PT3M28S
  duration ms: 208789
  explicit: false
  by artist: Caroline Shaw
  by artist: Dawn Upshaw
  by artist: Gilbert Kalish
  by artist: Sō Percussion
  in album: Caroline Shaw: Narrow Sea
    type: MusicAlbum
    date published: 2021-01-22
  popularity: 3
  isrc code: USNO12000269
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T07:26:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd621af7eac4c1aa52ad7df7b807121795ceb5dbe609ea68e52e80a1d6c37c978
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960222
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960222
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000269
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T07:48:45Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd621af7eac4c1aa52ad7df7b807121795ceb5dbe609ea68e52e80a1d6c37c978. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000269 — a six-check JSON result.
    date published: 2026-07-30T07:48:45Z
  audio: Narrow Sea, Pt. 2
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.869
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.61
    additional property: Energy
      type: PropertyValue
      value: 0.592
    additional property: Speechiness
      type: PropertyValue
      value: 0.074
    additional property: Acousticness
      type: PropertyValue
      value: 0.041
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.014
    additional property: Liveness
      type: PropertyValue
      value: 0.094
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.366
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.033
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Narrow Sea, Pt. 3
  type: MusicRecording
  duration: PT4M57S
  duration ms: 297917
  explicit: false
  by artist: Caroline Shaw
  by artist: Dawn Upshaw
  by artist: Gilbert Kalish
  by artist: Sō Percussion
  in album: Caroline Shaw: Narrow Sea
    type: MusicAlbum
    date published: 2021-01-22
  popularity: 2
  isrc code: USNO12000270
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T20:04:17+00:00
  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: Narrow Sea, Pt. 3
track: Narrow Sea, Pt. 4
track: Narrow Sea, Pt. 5
track: Taxidermy

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x36f32f73e4e827df0d2ead422cc6378788c65d5880be2ea530987ee9a67254ee

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957122

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957122

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000270

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:39:04Z

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 0x36f32f73e4e827df0d2ead422cc6378788c65d5880be2ea530987ee9a67254ee. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000270 — a six-check JSON result.
date published: 2026-07-08T03:39:04Z

Narrow Sea, Pt. 3
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 109.07
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.196
additional property: Energy
  type: PropertyValue
  value: 0.115
additional property: Speechiness
  type: PropertyValue
  value: 0.044
additional property: Acousticness
  type: PropertyValue
  value: 0.919
additional property: Instrumentalness
  type: PropertyValue
  value: 0.014
additional property: Liveness
  type: PropertyValue
  value: 0.13
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.051
additional property: Loudness (dB)
  type: PropertyValue
  value: -20.391
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Narrow Sea, Pt. 4
type: MusicRecording
duration: PT4M50S
duration ms: 290434
explicit: false
by artist: Caroline Shaw
by artist: Dawn Upshaw
by artist: Gilbert Kalish
by artist: Sō Percussion
in album: Caroline Shaw: Narrow Sea
  type: MusicAlbum
  date published: 2021-01-22
popularity: 1
isrc code: USNO12000271
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T20:30:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb20ee28a67fa77448c9af719fb1c687f7cda4b3c2b09e962ca96359668be4b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  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/USNO12000271
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 0xeb20ee28a67fa77448c9af719fb1c687f7cda4b3c2b09e962ca96359668be4b1. 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/USNO12000271 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Narrow Sea, Pt. 4
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.964
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.356
  additional property: Energy
    type: PropertyValue
    value: 0.225
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.034
  additional property: Liveness
    type: PropertyValue
    value: 0.281
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.797
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Narrow Sea, Pt. 5
type: MusicRecording
duration: PT2M42S
duration ms: 162028
explicit: false
by artist: Caroline Shaw
by artist: Dawn Upshaw
by artist: Gilbert Kalish
by artist: Sō Percussion
in album: Caroline Shaw: Narrow Sea
  type: MusicAlbum
  date published: 2021-01-22
popularity: 1
isrc code: USNO12000272
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T17:34:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d96eeb3527bbceefee66e86b0c4473846deb6adaeb328ffa74299d76dffd6f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960448
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960448
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000272
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12Z
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 0x1d96eeb3527bbceefee66e86b0c4473846deb6adaeb328ffa74299d76dffd6f6. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000272 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Narrow Sea, Pt. 5
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 147.334
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.587
  additional property: Energy
    type: PropertyValue
    value: 0.229
  additional property: Speechiness
    type: PropertyValue
    value: 0.185
  additional property: Acousticness
    type: PropertyValue
    value: 0.494
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.041
  additional property: Liveness
    type: PropertyValue
    value: 0.092
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.323
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.886
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Taxidermy
type: MusicRecording
duration: PT8M57S
duration ms: 537681
explicit: false
by artist: Caroline Shaw
by artist: Sō Percussion
in album: Caroline Shaw: Narrow Sea
  type: MusicAlbum
  date published: 2021-01-22
popularity: 1
isrc code: USNO12000273
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:54:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x281ffb856e282d53e1d1063ff33e71500ddbb7c8ee55baff4543eabe2d9af4a8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  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/USNO12000273
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
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