Cappella Strumentale del Duomo di Novara
type: MusicGroup
popularity: 12
followers: 87
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xfd32add458faff9ee4fb78137b86c98bd770e48260088a4ae6703b0a7f5cd697
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953678
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/61c3d743-c0cb-4a6b-847b-06f10f7984b4.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd32add458faff9ee4fb78137b86c98bd770e48260088a4ae6703b0a7f5cd697. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61c3d743-c0cb-4a6b-847b-06f10f7984b4.json and https://artists.proofprofile.net/proofs/artist/61c3d743-c0cb-4a6b-847b-06f10f7984b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T19:23:11Z
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album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
  type: MusicAlbum
  date published: 2012-10-01
  track: 12 Sonatas, Op. 16, Sonata prima: I. Allegro
  track: 12 Sonatas, Op. 16, Sonata prima: II. Largo
  track: 12 Sonatas, Op. 16, Sonata prima: III. Adagio
  track: 12 Sonatas, Op. 16, Sonata prima: IV. Allegro
  track: 12 Sonatas, Op. 16, Sonata prima: VI. Vivace
  track: 12 Sonatas, Op. 16, Sonata seconda: I. Largo
  track: 12 Sonatas, Op. 16, Sonata seconda: II. Spiritoso
  track: 12 Sonatas, Op. 16, Sonata seconda: III. Allegro
  track: 12 Sonatas, Op. 16, Sonata seconda: IV. Adagio - Allegro
  track: 12 Sonatas, Op. 16, Sonata terza: I. Adagio - Presto - Adagio
  track: 12 Sonatas, Op. 16, Sonata terza: VII. Presto - Adagio
  track: 12 Sonatas, Op. 16, Sonata settima: III. Largo
  track: 12 Sonatas, Op. 16, Sonata prima: V. Soli violini
album: Leonarda: La Musa Novarese
  type: MusicAlbum
  date published: 1997-01-01
  track: Twelve Motteti, Op. 6: V. Ave suavis dilecto, con violini
  track: Magnificat, Op. 19
  track: Litany of the Blessed Virgin Mary, Op. 10
album: Maurizio Cazzati: Opera 18 - Opera 35
  type: MusicAlbum
  date published: 2000-06-10

12 Sonatas, Op. 16, Sonata prima: I. Allegro
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duration ms: 52280
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by artist: Isabella Leonarda
by artist: Cappella Strumentale del Duomo di Novara
in album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
  type: MusicAlbum
  date published: 2012-10-01
popularity: 4
genre: baroque
genre: italian-baroque
isrc code: DEU241113077
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6e2927e629b325836d4ba1ddc9cdd7cc312af78bc8848aab1f582c3e8ea359. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEU241113077.
  date published: 2026-07-06T07:16:32Z
audio: 12 Sonatas, Op. 16, Sonata prima: I. Allegro
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  additional property: Danceability
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  additional property: Speechiness
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  additional property: Valence (Positivity)
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12 Sonatas, Op. 16, Sonata prima: II. Largo
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duration: PT3M3S
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explicit: false
by artist: Isabella Leonarda
by artist: Cappella Strumentale del Duomo di Novara
in album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
  type: MusicAlbum
  date published: 2012-10-01
popularity: 3
genre: baroque
genre: italian-baroque
isrc code: DEU241113078
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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  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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd222f30c1981943cbdb0c386cf9853ace361a888dc608bbc4efbfc9ef42fc289. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU241113078.
  date published: 2026-07-08T03:22:41Z
audio: 12 Sonatas, Op. 16, Sonata prima: II. Largo
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Danceability
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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12 Sonatas, Op. 16, Sonata prima: III. Adagio
type: MusicRecording
duration: PT1M30S
duration ms: 90173
explicit: false
by artist: Isabella Leonarda
by artist: Cappella Strumentale del Duomo di Novara
in album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
  type: MusicAlbum
  date published: 2012-10-01
popularity: 1
genre: baroque
genre: italian-baroque
isrc code: DEU241113079
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
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU241113079
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa1b62272b26122126538d8696f0012129678399fc70fac529ad9e3b2719810. 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/DEU241113079.
  date published: 2026-07-08T03:20:19Z
audio: 12 Sonatas, Op. 16, Sonata prima: III. Adagio
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  additional property: Tempo (BPM)
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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.393
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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12 Sonatas, Op. 16, Sonata prima: IV. Allegro
type: MusicRecording
duration: PT1M12S
duration ms: 72386
explicit: false
by artist: Isabella Leonarda
by artist: Cappella Strumentale del Duomo di Novara
in album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
  type: MusicAlbum
  date published: 2012-10-01
popularity: 2
genre: baroque
genre: italian-baroque
isrc code: DEU241113080
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-07-07T11:14:39+00:00
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
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU241113080
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1446e61f560514bc3c3a01921fdec9636c9ee75eb13f09aa1ec4f90d1cf0f4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU241113080.
  date published: 2026-07-08T03:53:27Z
audio: 12 Sonatas, Op. 16, Sonata prima: IV. Allegro
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12 Sonatas, Op. 16, Sonata prima: VI. Vivace
type: MusicRecording
duration: PT1M7S
duration ms: 67813
explicit: false
by artist: Isabella Leonarda
by artist: Cappella Strumentale del Duomo di Novara
in album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
  type: MusicAlbum
  date published: 2012-10-01
popularity: 1
genre: baroque
genre: italian-baroque
isrc code: DEU241113082
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
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e04b71da525d5c2e3637b5e4402ca6d77a4aed1589d3e36cb9b5eb3f11a600d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU241113082.
  date published: 2026-07-08T03:53:27Z
audio: 12 Sonatas, Op. 16, Sonata prima: VI. Vivace
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12 Sonatas, Op. 16, Sonata seconda: I. Largo
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duration: PT1M31S
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explicit: false
by artist: Isabella Leonarda
by artist: Cappella Strumentale del Duomo di Novara
in album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
  type: MusicAlbum
  date published: 2012-10-01
popularity: 2
genre: baroque
genre: italian-baroque
isrc code: DEU241113083
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:52:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x74b91fab55ffcb50dc0f2694f9124f190a8648eb6e3a450a9055710aa55497cc
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/DEU241113083
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b91fab55ffcb50dc0f2694f9124f190a8648eb6e3a450a9055710aa55497cc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU241113083.
  date published: 2026-07-08T03:39:04Z
audio: 12 Sonatas, Op. 16, Sonata seconda: I. Largo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.119
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.092
  additional property: Energy
    type: PropertyValue
    value: 0.024
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.706
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.258
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.12
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.301
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

12 Sonatas, Op. 16, Sonata seconda: II. Spiritoso
type: MusicRecording
duration: PT0M47S
duration ms: 47893
explicit: false
by artist: Isabella Leonarda
by artist: Cappella Strumentale del Duomo di Novara
in album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
  type: MusicAlbum
  date published: 2012-10-01
popularity: 1
genre: baroque
genre: italian-baroque
isrc code: DEU241113084
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T22:15:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x691aa988022c7de52d916d65bfc2f5af8da41852854eaa3eb21e117ed1d1961c
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/DEU241113084
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691aa988022c7de52d916d65bfc2f5af8da41852854eaa3eb21e117ed1d1961c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU241113084.
  date published: 2026-07-08T03:39:04Z
audio: 12 Sonatas, Op. 16, Sonata seconda: II. Spiritoso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.917
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.544
  additional property: Energy
    type: PropertyValue
    value: 0.064
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.858
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.025
  additional property: Liveness
    type: PropertyValue
    value: 0.138
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.45
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.197
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

12 Sonatas, Op. 16, Sonata seconda: III. Allegro
type: MusicRecording
duration: PT1M20S
duration ms: 80720
explicit: false
by artist: Isabella Leonarda
by artist: Cappella Strumentale del Duomo di Novara
in album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
  type: MusicAlbum
  date published: 2012-10-01
popularity: 1
genre: baroque
genre: italian-baroque
isrc code: DEU241113085
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:28:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x564b1f51b099d17addef419185b70c64cc4b85d206ace949fda5d4cff5e0c0a6
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/DEU241113085
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564b1f51b099d17addef419185b70c64cc4b85d206ace949fda5d4cff5e0c0a6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU241113085.
  date published: 2026-07-08T03:39:04Z
audio: 12 Sonatas, Op. 16, Sonata seconda: III. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.06
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.435
  additional property: Energy
    type: PropertyValue
    value: 0.051
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.855
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.084
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.46
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.232
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

12 Sonatas, Op. 16, Sonata seconda: IV. Adagio - Allegro
type: MusicRecording
duration: PT1M37S
duration ms: 97266
explicit: false
by artist: Isabella Leonarda
by artist: Cappella Strumentale del Duomo di Novara
in album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
  type: MusicAlbum
  date published: 2012-10-01
popularity: 1
genre: baroque
genre: italian-baroque
isrc code: DEU241113086
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T21:00:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd01a7d225ef51a6a5baedaf70b4b9e6dc7d28cd9db01f9fe60be757ceffff4e
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/DEU241113086
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd01a7d225ef51a6a5baedaf70b4b9e6dc7d28cd9db01f9fe60be757ceffff4e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU241113086.
  date published: 2026-07-08T03:22:41Z
audio: 12 Sonatas, Op. 16, Sonata seconda: IV. Adagio - Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.838
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.241
  additional property: Energy
    type: PropertyValue
    value: 0.023
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.843
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.07
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.162
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.768
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

12 Sonatas, Op. 16, Sonata terza: I. Adagio - Presto - Adagio
type: MusicRecording
duration: PT1M43S
duration ms: 103400
explicit: false
by artist: Isabella Leonarda
by artist: Cappella Strumentale del Duomo di Novara
in album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
  type: MusicAlbum
  date published: 2012-10-01
popularity: 1
genre: baroque
genre: italian-baroque
isrc code: DEU241113088
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:51:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2da4b1005eddfc2d23642ba6c192f91ff76d3d98f32bc2dbe8a8e04cc6e15fb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU241113088
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2da4b1005eddfc2d23642ba6c192f91ff76d3d98f32bc2dbe8a8e04cc6e15fb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEU241113088.
  date published: 2026-07-08T08:56:20Z
audio: 12 Sonatas, Op. 16, Sonata terza: I. Adagio - Presto - Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.641
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.208
  additional property: Energy
    type: PropertyValue
    value: 0.059
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.582
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.785
  additional property: Liveness
    type: PropertyValue
    value: 0.23
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.143
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.97
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

12 Sonatas, Op. 16, Sonata terza: VII. Presto - Adagio
type: MusicRecording
duration: PT1M10S
duration ms: 70440
explicit: false
by artist: Isabella Leonarda
by artist: Cappella Strumentale del Duomo di Novara
in album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
  type: MusicAlbum
  date published: 2012-10-01
popularity: 1
genre: baroque
genre: italian-baroque
isrc code: DEU241113094
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:12:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe612f7c22f6089bfe030aa7eb57f5e3b6b786801379ede331ff7afeba33cc9a
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/DEU241113094
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe612f7c22f6089bfe030aa7eb57f5e3b6b786801379ede331ff7afeba33cc9a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU241113094.
  date published: 2026-07-08T03:22:41Z
audio: 12 Sonatas, Op. 16, Sonata terza: VII. Presto - Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.034
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.23
  additional property: Energy
    type: PropertyValue
    value: 0.047
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.54
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.941
  additional property: Liveness
    type: PropertyValue
    value: 0.159
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.233
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.918
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

12 Sonatas, Op. 16, Sonata settima: III. Largo
type: MusicRecording
duration: PT1M10S
duration ms: 70760
explicit: false
by artist: Isabella Leonarda
by artist: Cappella Strumentale del Duomo di Novara
in album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
  type: MusicAlbum
  date published: 2012-10-01
popularity: 1
genre: baroque
genre: italian-baroque
isrc code: DEU241113117
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:30:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb90d5c5bfec55a49f1dce0c73162462ba379e8b09241d2befcd3fb4020a62bf0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: 12 Sonatas, Op. 16, Sonata settima: III. Largo
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12 Sonatas, Op. 16, Sonata prima: V. Soli violini
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by artist: Isabella Leonarda
by artist: Cappella Strumentale del Duomo di Novara
in album: Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
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  date published: 2012-10-01
popularity: 3
genre: baroque
genre: italian-baroque
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3955d8dc16085c6efe6663f317e4c3389528cd41a60da7b6225c4fedc17ddd5d. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEU241113081.
  date published: 2026-07-30T12:06:10Z
audio: 12 Sonatas, Op. 16, Sonata prima: V. Soli violini
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Twelve Motteti, Op. 6: V. Ave suavis dilecto, con violini
type: MusicRecording
duration: PT8M50S
duration ms: 530293
explicit: false
by artist: Isabella Leonarda
by artist: Loredana Bacchetta
by artist: Caterina Calvi
by artist: Gianluca Ferrarini
by artist: Luca Ferracin
by artist: Cappella Strumentale del Duomo di Novara
by artist: Gruppo Vocale Musica Laudantes
by artist: Paolo Monticelli
in album: Leonarda: La Musa Novarese
  type: MusicAlbum
  date published: 1997-01-01
genre: baroque
genre: italian-baroque
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Twelve Motteti, Op. 6: V. Ave suavis dilecto, con violini
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Magnificat, Op. 19
type: MusicRecording
duration: PT10M18S
duration ms: 618853
explicit: false
by artist: Isabella Leonarda
by artist: Loredana Bacchetta
by artist: Caterina Calvi
by artist: Gianluca Ferrarini
by artist: Luca Ferracin
by artist: Cappella Strumentale del Duomo di Novara
by artist: Gruppo Vocale Musica Laudantes
by artist: Paolo Monticelli
in album: Leonarda: La Musa Novarese
  type: MusicAlbum
  date published: 1997-01-01
genre: baroque
genre: italian-baroque
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T05:15:54Z
audio: Magnificat, Op. 19
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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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

Litany of the Blessed Virgin Mary, Op. 10
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duration: PT9M35S
duration ms: 575600
explicit: false
by artist: Isabella Leonarda
by artist: Loredana Bacchetta
by artist: Caterina Calvi
by artist: Gianluca Ferrarini
by artist: Luca Ferracin
by artist: Cappella Strumentale del Duomo di Novara
by artist: Gruppo Vocale Musica Laudantes
by artist: Paolo Monticelli
in album: Leonarda: La Musa Novarese
  type: MusicAlbum
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genre: baroque
genre: italian-baroque
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T20:22:46Z
audio: Litany of the Blessed Virgin Mary, Op. 10
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additional property: OTSVerifyInstructions
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