Mel Bonis
type: MusicGroup
description: thumb|Bonis at about age 50, photo Mélanie Hélène "Mel" Bonis (21 January 1858 – 18 March 1937) was a prolific French late-Romantic composer. She wrote more than 300 pieces, including works for pian
popularity: 26
followers: 3980
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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 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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album: Bonis: "Le songe de Cléopâtre" (L'œuvre pour piano à quatre mains / Les compositrices, Vol. 3)
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  date published: 2012-03-20
  track: Suite en forme de valses: I. Ballabile, Op. 35 (Mouvement modéré de valse)
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    by artist: Mel Bonis
    by artist: Laurent Martin
    by artist: Claudine Simon
    in album: Bonis: "Le songe de Cléopâtre" (L'œuvre pour piano à quatre mains / Les compositrices, Vol. 3)
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      date published: 2012-03-20
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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
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      date published: 2026-07-31T17:29:52Z
    audio: Suite en forme de valses: I. Ballabile, Op. 35 (Mouvement modéré de valse)
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  track: 6 Valses-Caprice, Op. 87: VI. Vico
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T18:48:12Z
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  track: Echo, Op. 89
  track: Etude en sol bémol, Op. 136
album: The Echoes of Women - International Women's Day 2024
track: Miocheries, Op. 126: No. 13, La toute petite s'endort
track: Douce Amie (Sweet Friend)

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Echo, Op. 89
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by artist: Claudine Simon
in album: Bonis: "Le songe de Cléopâtre" (L'œuvre pour piano à quatre mains / Les compositrices, Vol. 3)
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  date published: 2012-03-20
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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
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  date published: 2026-07-31T12:24:41Z
audio: Echo, Op. 89
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Etude en sol bémol, Op. 136
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in album: Bonis: "Le songe de Cléopâtre" (L'œuvre pour piano à quatre mains / Les compositrices, Vol. 3)
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  date published: 2012-03-20
popularity: 0
isrc code: FRX401100126
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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
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  date published: 2026-07-31T23:30:38Z
audio: Etude en sol bémol, Op. 136
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The Echoes of Women - International Women's Day 2024
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track: Valse lente
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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: 2026-07-08T03:22:41Z
  audio: Valse lente
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track: Étude No. 2: Breathless
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  subject of: OpenTimestamps Proof of Existence
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track: Variations on a Theme by Robert Schumann, Op. 20: Var. 2
track: Variations on a Theme by Robert Schumann, Op. 20: Var. 3
track: Variations on a Theme by Robert Schumann, Op. 20: Var. 4
track: Variations on a Theme by Robert Schumann, Op. 20: Var. 5
track: Variations on a Theme by Robert Schumann, Op. 20: Var. 6
track: Variations on a Theme by Robert Schumann, Op. 20: Var. 7
track: Miocheries, Op. 126: No. 13, La toute petite s'endort
track: Parliament Of Owls
track: White Flowers Take Their Bath
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track: Fólk fær andlit
track: String Quartet in E-Flat Major: I. Adagio ma non troppo
track: String Quartet in E-Flat Major: II. Allegretto - Scherzo
track: String Quartet in E-Flat Major: III. Romanze
track: String Quartet in E-Flat Major: IV. Allegro molto vivace
track: 30 Etudes, Op. 26: No. 10 in F-Sharp Minor. Adagio
track: 3 Romances, Op. 22: No. 1, Andante molto (Arr. Knoth for Cello and Piano)
track: 4 Pièces romantiques, Op. 30: No. 4, Romance sans paroles
track: D'un jardin clair
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track: There Will Be Hope
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track: Preludium c-moll
track: Jezus Malusieńki (Reworked by Hania Rani & Dobrawa Czocher)
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track: Soirées musicales, Op. 6: II. Notturno. Andante con moto (Version for Harp)
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track: A Thousand Tongues
track: Líður (Arr. Jarkko Riihimäki)
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  date published: 2026-07-30T05:15:54Z
audio: Variations on a Theme by Robert Schumann, Op. 20: Var. 5
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Variations on a Theme by Robert Schumann, Op. 20: Var. 6
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duration: PT1M10S
duration ms: 70585
explicit: false
by artist: Clara Schumann
by artist: Benjamin Grosvenor
in album: The Echoes of Women - International Women's Day 2024
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popularity: 6
genre: classical
genre: early-romantic-era
genre: german-romanticism
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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
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  date published: 2026-07-08T03:20:19Z
audio: Variations on a Theme by Robert Schumann, Op. 20: Var. 6
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Variations on a Theme by Robert Schumann, Op. 20: Var. 7
type: MusicRecording
duration: PT4M16S
duration ms: 256148
explicit: false
by artist: Clara Schumann
by artist: Benjamin Grosvenor
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 5
genre: classical
genre: early-romantic-era
genre: german-romanticism
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427b9f530e633923463fcce4244694a9bf6e9a221659ca62b28e23e441794612. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2201483.
  date published: 2026-07-07T14:18:56Z
audio: Variations on a Theme by Robert Schumann, Op. 20: Var. 7
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Miocheries, Op. 126: No. 13, La toute petite s'endort
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duration: PT1M56S
duration ms: 116093
explicit: false
by artist: Mel Bonis
by artist: Lang Lang
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 5
isrc code: DEN962302760
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee65305a91668ebe98f3676bbb539cffa9b871a841d94449a88003a409388fd3. 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/DEN962302760.
  date published: 2026-07-08T03:20:19Z
audio: Miocheries, Op. 126: No. 13, La toute petite s'endort
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  additional property: Tempo (BPM)
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Parliament Of Owls
type: MusicRecording
duration: PT2M29S
duration ms: 149751
explicit: false
by artist: Agnes Obel
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 10
genre: chamber-pop
isrc code: DEN961902441
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
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d49a8528e6bbc1abd806577b7d5681fc7ed44fbacc3c39067a86708321c338d. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961902441.
  date published: 2026-07-07T16:54:37Z
audio: Parliament Of Owls
  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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White Flowers Take Their Bath
type: MusicRecording
duration: PT3M6S
duration ms: 186469
explicit: false
by artist: Meredi
by artist: Mari Samuelsen
by artist: Scoring Berlin
by artist: Jonathan Stockhammer
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 9
isrc code: DEN962102900
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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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 0xf91ff38d5a658ce6022eaaa7523162c79825d800012783a27498e6f8942d0d1d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEN962102900.
  date published: 2026-07-06T06:56:49Z
audio: White Flowers Take Their Bath
  type: AudioObject
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  additional property: Mode (Major/Minor)
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Wild Swans Suite - Version For Violin And Piano: II. Eliza Aria
type: MusicRecording
duration: PT3M8S
duration ms: 188280
explicit: false
by artist: Elena Kats-Chernin
by artist: Daniel Hope
by artist: Jacques Ammon
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 7
isrc code: DEN961201790
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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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
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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
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  date published: 2026-07-07T13:25:45Z
audio: Wild Swans Suite - Version For Violin And Piano: II. Eliza Aria
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Fólk fær andlit
type: MusicRecording
duration: PT5M13S
duration ms: 313150
explicit: false
by artist: Hildur Guðnadóttir
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 7
genre: soundtrack
genre: icelandic-experimental
genre: compositional-ambient
genre: icelandic-classical
genre: drone
genre: orchestral-soundtrack
genre: cello
genre: modern-cello
isrc code: DEN961601440
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: OTSVerificationAPI
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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 0x507d2c0d8976ac079891b30dce7fe32e5fb02acbbc4058880145210b27d542d9. 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/DEN961601440.
  date published: 2026-07-08T03:20:19Z
audio: Fólk fær andlit
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  additional property: Tempo (BPM)
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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
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
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    value: 0.994
  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.81
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
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String Quartet in E-Flat Major: I. Adagio ma non troppo
type: MusicRecording
duration: PT3M15S
duration ms: 195426
explicit: false
by artist: Fanny Mendelssohn
by artist: Asasello Quartett
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 5
genre: early-romantic-era
genre: german-romanticism
isrc code: DEAQ70900012
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T10:59:04+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960250
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAQ70900012
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T11:13:28Z
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 0x64ffb15b4b36dd6d9470bf08ea6458cdce8afd83b46706fd173556c58ea88672. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEAQ70900012.
  date published: 2026-07-30T11:13:28Z
audio: String Quartet in E-Flat Major: I. Adagio ma non troppo
  type: AudioObject
  additional property: Tempo (BPM)
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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
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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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    value: -24.848
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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String Quartet in E-Flat Major: II. Allegretto - Scherzo
type: MusicRecording
duration: PT3M37S
duration ms: 217986
explicit: false
by artist: Fanny Mendelssohn
by artist: Asasello Quartett
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 5
genre: early-romantic-era
genre: german-romanticism
isrc code: DEAQ70900034
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T04:36:53+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xa729c8a57882951c9ecc801a1c2b2e4781e8b73e655e3e56aad98b202187e4f5
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960207
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAQ70900034
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T04:47:22Z
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 0xa729c8a57882951c9ecc801a1c2b2e4781e8b73e655e3e56aad98b202187e4f5. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEAQ70900034.
  date published: 2026-07-30T04:47:22Z
audio: String Quartet in E-Flat Major: II. Allegretto - Scherzo
  type: AudioObject
  additional property: Tempo (BPM)
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  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
    value: 5
  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
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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String Quartet in E-Flat Major: III. Romanze
type: MusicRecording
duration: PT5M51S
duration ms: 351813
explicit: false
by artist: Fanny Mendelssohn
by artist: Asasello Quartett
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 4
genre: early-romantic-era
genre: german-romanticism
isrc code: DEAQ70900014
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:11:06+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x0d51bacfe48885f72dac55f3ed1273782dbfb9c9a081f772c897c3e1f1583eda
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAQ70900014
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 0x0d51bacfe48885f72dac55f3ed1273782dbfb9c9a081f772c897c3e1f1583eda. 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/DEAQ70900014.
  date published: 2026-07-08T03:20:19Z
audio: String Quartet in E-Flat Major: III. Romanze
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  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)
    type: PropertyValue
    value: -22.946
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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String Quartet in E-Flat Major: IV. Allegro molto vivace
type: MusicRecording
duration: PT5M30S
duration ms: 330346
explicit: false
by artist: Fanny Mendelssohn
by artist: Asasello Quartett
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 4
genre: early-romantic-era
genre: german-romanticism
isrc code: DEAQ70900015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960177
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAQ70900015
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T00:21:01Z
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 0x499eb510498aef29587ac1d48220b63558cc96f6c440899bd8e79630619e36d6. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/DEAQ70900015.
  date published: 2026-07-30T00:21:01Z
audio: String Quartet in E-Flat Major: IV. Allegro molto vivace
  type: AudioObject
  additional property: Tempo (BPM)
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  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
    value: 5
  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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  additional property: Key Name
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  additional property: Mode Name
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30 Etudes, Op. 26: No. 10 in F-Sharp Minor. Adagio
type: MusicRecording
duration: PT5M28S
duration ms: 328360
explicit: false
by artist: Louise Farrenc
by artist: Lang Lang
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 5
isrc code: DEN962302730
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962302730
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 0xaabd539d9e093e3df60d65fc6152e6b49fd9a353fd4cf7c6aa28b32a00a38226. 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/DEN962302730.
  date published: 2026-07-08T03:20:19Z
audio: 30 Etudes, Op. 26: No. 10 in F-Sharp Minor. Adagio
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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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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3 Romances, Op. 22: No. 1, Andante molto (Arr. Knoth for Cello and Piano)
type: MusicRecording
duration: PT3M10S
duration ms: 190866
explicit: false
by artist: Clara Schumann
by artist: Sophie Kauer
by artist: Kunal Lahiry
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 4
genre: classical
genre: early-romantic-era
genre: german-romanticism
isrc code: DEN962330621
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962330621
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 0x851b80b7f57b8f2f1c36f587beb8ea1f532903b35e4252766f1f4ea587bd46dd. 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/DEN962330621.
  date published: 2026-07-08T03:20:19Z
audio: 3 Romances, Op. 22: No. 1, Andante molto (Arr. Knoth for Cello and Piano)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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4 Pièces romantiques, Op. 30: No. 4, Romance sans paroles
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duration: PT3M14S
duration ms: 194986
explicit: false
by artist: Charlotte Sohy
by artist: Lang Lang
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 4
isrc code: DEN962302740
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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: 2026-07-08T03:20:19Z
audio: 4 Pièces romantiques, Op. 30: No. 4, Romance sans paroles
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D'un jardin clair
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duration: PT3M21S
duration ms: 201280
explicit: false
by artist: Lili Boulanger
by artist: Lang Lang
in album: The Echoes of Women - International Women's Day 2024
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popularity: 4
genre: choral
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x2b27f1875de9b5a8d1bd104c6d273aeb832747bf71a97417c0cda12448f481f4. 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/DEN962302770.
  date published: 2026-07-08T03:20:19Z
audio: D'un jardin clair
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Adoration (Version for Solo Violin and String Orchestra)
type: MusicRecording
duration: PT3M52S
duration ms: 232000
explicit: false
by artist: Florence Beatrice Price
by artist: Daniel Hope
by artist: Zürcher Kammerorchester
in album: The Echoes of Women - International Women's Day 2024
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popularity: 4
isrc code: DEN962102280
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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: 2026-07-08T03:20:19Z
audio: Adoration (Version for Solo Violin and String Orchestra)
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Wild Swans Suite: II. Eliza Aria (Version for Piano)
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duration: PT3M9S
duration ms: 189573
explicit: false
by artist: Elena Kats-Chernin
by artist: Lang Lang
in album: The Echoes of Women - International Women's Day 2024
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popularity: 5
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xa9fa67aa5a5cdc72659f75de3991c7911aceb14e7e551d4af4db7ef019d3ff8b. 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/DEN961801980.
  date published: 2026-07-08T03:20:19Z
audio: Wild Swans Suite: II. Eliza Aria (Version for Piano)
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3 Lieder, Op. 12: II. Liebst du um Schönheit
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duration: PT2M1S
duration ms: 121213
explicit: false
by artist: Clara Schumann
by artist: Hélène Grimaud
by artist: Anne Sofie von Otter
in album: The Echoes of Women - International Women's Day 2024
  type: MusicAlbum
  date published: 2024-03-08
popularity: 3
genre: classical
genre: early-romantic-era
genre: german-romanticism
isrc code: DEN960500312
additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
audio: 3 Lieder, Op. 12: II. Liebst du um Schönheit
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There Will Be Hope
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duration: PT4M37S
duration ms: 277334
explicit: false
by artist: Hania Rani
by artist: Dobrawa Czocher
in album: The Echoes of Women - International Women's Day 2024
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popularity: 7
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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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
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  date published: 2026-07-07T18:39:05Z
audio: There Will Be Hope
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3 Romances For Violin And Piano, Op. 22: 1. Andante molto
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duration: PT2M57S
duration ms: 177733
explicit: false
by artist: Clara Schumann
by artist: Clara Jumi Kang
by artist: Yeol Eum Son
in album: The Echoes of Women - International Women's Day 2024
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  date published: 2024-03-08
popularity: 3
genre: classical
genre: early-romantic-era
genre: german-romanticism
isrc code: KRUM71600097
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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: 2026-07-30T14:36:16Z
audio: 3 Romances For Violin And Piano, Op. 22: 1. Andante molto
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3 Romances For Violin And Piano, Op. 22: 2. Allegretto
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3 Romances For Violin And Piano, Op. 22: 3. Leidenschaftlich schnell
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Preludium c-moll
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subject of: OpenTimestamps Proof of Existence
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Jezus Malusieńki (Reworked by Hania Rani & Dobrawa Czocher)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T05:15:54Z
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Broken Sleep
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subject of: OpenTimestamps Proof of Existence
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Soirées musicales, Op. 6: II. Notturno. Andante con moto (Version for Harp)
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  date published: 2026-07-31T00:26:26Z
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5 Lieder, Op. 10: No. 5, Bergeslust (Arr. Rouger for Choir and Piano)
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subject of: OpenTimestamps Proof of Existence
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Piano Trio in D Minor, Op. 11: I. Allegro molto vivace
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duration: PT10M30S
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by artist: Nash Ensemble
in album: The Echoes of Women - International Women's Day 2024
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popularity: 3
genre: early-romantic-era
genre: german-romanticism
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Piano Trio in D Minor, Op. 11: I. Allegro molto vivace
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Piano Trio in D Minor, Op. 11: II. Andante espressivo
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duration: PT6M17S
duration ms: 377240
explicit: false
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by artist: Nash Ensemble
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popularity: 3
genre: early-romantic-era
genre: german-romanticism
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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: 2026-07-31T00:26:26Z
audio: Piano Trio in D Minor, Op. 11: II. Andante espressivo
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Piano Trio in D Minor, Op. 11: III. Lied. Allegretto
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duration: PT2M5S
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explicit: false
by artist: Fanny Mendelssohn
by artist: Nash Ensemble
in album: The Echoes of Women - International Women's Day 2024
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  date published: 2024-03-08
popularity: 3
genre: early-romantic-era
genre: german-romanticism
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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: 2026-07-30T20:09:33Z
audio: Piano Trio in D Minor, Op. 11: III. Lied. Allegretto
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Piano Trio in D Minor, Op. 11: IV. Finale. Allegretto moderato
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duration: PT5M42S
duration ms: 342626
explicit: false
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by artist: Nash Ensemble
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popularity: 3
genre: early-romantic-era
genre: german-romanticism
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
audio: Piano Trio in D Minor, Op. 11: IV. Finale. Allegretto moderato
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Con Moto
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duration ms: 304230
explicit: false
by artist: Hania Rani
by artist: Dobrawa Czocher
in album: The Echoes of Women - International Women's Day 2024
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popularity: 4
isrc code: DEN962130202
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
audio: Con Moto
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A Thousand Tongues
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duration: PT6M43S
duration ms: 403781
explicit: false
by artist: Missy Mazzoli
by artist: Emily D'Angelo
by artist: Mikayel Hakhnazaryan
in album: The Echoes of Women - International Women's Day 2024
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popularity: 3
genre: 21st-century-classical
genre: american-21st-century-classical
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: A Thousand Tongues
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Líður (Arr. Jarkko Riihimäki)
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duration: PT3M44S
duration ms: 224698
explicit: false
by artist: Hildur Guðnadóttir
by artist: Emily D'Angelo
by artist: Kuss Quartet
by artist: Christian Vogel
by artist: Norbert Wahren
in album: The Echoes of Women - International Women's Day 2024
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  date published: 2024-03-08
popularity: 4
genre: soundtrack
genre: icelandic-experimental
genre: compositional-ambient
genre: icelandic-classical
genre: drone
genre: orchestral-soundtrack
genre: cello
genre: modern-cello
isrc code: DEN962131410
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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O virtus sapientiae (Arr. Sarah Kirkland Snider)
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Miocheries, Op. 126: No. 13, La toute petite s'endort
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subject of: OpenTimestamps Proof of Existence
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Douce Amie (Sweet Friend)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
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