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type: MusicGroup
genre: chamber music
popularity: 15
followers: 7
additional property: CopyrightID
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: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f7844dce9fdbef2bfce62b864f2b87fd30d3907538dda53fc1b9b259610bd3. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50a54aeb-8af6-4bfe-bd8f-2c8afc7b64f0.json and https://artists.proofprofile.net/proofs/artist/50a54aeb-8af6-4bfe-bd8f-2c8afc7b64f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:49:28Z
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track: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: I. Allegro
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  duration: PT13M3S
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  by artist: Wolfgang Amadeus Mozart
  by artist: Stephen Taylor
  by artist: David Singer
  by artist: William Purvis
  by artist: Steven Dibner
  by artist: Orpheus Chamber Orchestra
  in album: Mozart, W.A.: The Wind Concertos / Serenades / Divertimenti
    type: MusicAlbum
    date published: 2001-01-01
  popularity: 15
  genre: classical
  genre: classical-era
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2fb851db2f1c647d0859e10ae70380a916a5d4ac0a8af345cdd20c4f551a7d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058903911.
    date published: 2026-07-02T03:55:08Z
  audio: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: I. Allegro
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    additional property: Speechiness
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track: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: II. Adagio
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    date published: 2001-01-01
  popularity: 13
  genre: classical
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
  audio: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: II. Adagio
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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track: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: III. Andantino con variazioni
track: Sinfonia Concertante In E Flat For Oboe, Clarinet, Horn, Bassoon, Orch., K.297b: 3. Andantino con variazioni - Excerpt

Sinfonia Concertante In E Flat For Oboe, Clarinet, Horn, Bassoon, Orch., K.297b: 3. Andantino con variazioni - Excerpt
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duration ms: 196906
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stephen Taylor
by artist: David Singer
by artist: William Purvis
by artist: Steven Dibner
by artist: Orpheus Chamber Orchestra
in album: Baby-Klassik - Mozart für kleine Genies
  type: MusicAlbum
  date published: 2014-10-03
genre: classical
genre: classical-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1857cb57532534d1d900d1e55c783b02aa4c487a2674d40a718623a2ce606d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058903914.
  date published: 2026-07-29T19:35:34Z
audio: Sinfonia Concertante In E Flat For Oboe, Clarinet, Horn, Bassoon, Orch., K.297b: 3. Andantino con variazioni - Excerpt
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  additional property: Danceability
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Acousticness
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Instrumentalness
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Liveness
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Valence (Positivity)
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value: 0.04

Loudness (dB)
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Key Name
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Mode Name
type: PropertyValue
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Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: III. Andantino con variazioni
type: MusicRecording
duration: PT8M37S
duration ms: 517240
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stephen Taylor
by artist: David Singer
by artist: William Purvis
by artist: Steven Dibner
by artist: Orpheus Chamber Orchestra
in album: Mozart, W.A.: The Wind Concertos / Serenades / Divertimenti
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  date published: 2001-01-01
popularity: 13
genre: classical
genre: classical-era
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additional property: CopyrightID
additional property: CopyrightStatus
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269e6423d764e6177d54c149bac26f388d46e90d2ab2234aa789015bd7ccfbdf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058903913.
  date published: 2026-07-02T03:55:08Z
audio: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: III. Andantino con variazioni
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  additional property: Danceability
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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: Mode Name
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Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: I. Allegro
type: MusicRecording
duration: PT13M3S
duration ms: 783840
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stephen Taylor
by artist: David Singer
by artist: William Purvis
by artist: Steven Dibner
by artist: Orpheus Chamber Orchestra
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genre: classical
genre: classical-era
isrc code: DEF058903911
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2fb851db2f1c647d0859e10ae70380a916a5d4ac0a8af345cdd20c4f551a7d. 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/DEF058903911.
  date published: 2026-07-08T03:53:27Z
audio: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: I. Allegro
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Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: III. Andantino con variazioni
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duration: PT8M39S
duration ms: 519000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stephen Taylor
by artist: David Singer
by artist: William Purvis
by artist: Steven Dibner
by artist: Orpheus Chamber Orchestra
in album: Tune Your Brain With Mozart
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genre: classical
genre: classical-era
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additional property: CopyrightRegisteredAt
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269e6423d764e6177d54c149bac26f388d46e90d2ab2234aa789015bd7ccfbdf. 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/DEF058903913.
  date published: 2026-07-08T03:22:41Z
audio: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: III. Andantino con variazioni
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.792
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.442
  additional property: Energy
    type: PropertyValue
    value: 0.086
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.899
  additional property: Liveness
    type: PropertyValue
    value: 0.057
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.38
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.244
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: I. Allegro
type: MusicRecording
duration: PT12M58S
duration ms: 778333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stephen Taylor
by artist: David Singer
by artist: William Purvis
by artist: Steven Dibner
by artist: Orpheus Chamber Orchestra
in album: Mozart: Sinfonia Concertante K.297b & K.364
  type: MusicAlbum
  date published: 1991-01-01
genre: classical
genre: classical-era
isrc code: DEF058903911
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T03:06:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6d2fb851db2f1c647d0859e10ae70380a916a5d4ac0a8af345cdd20c4f551a7d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956891
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956891
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058903911
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:16:32Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2fb851db2f1c647d0859e10ae70380a916a5d4ac0a8af345cdd20c4f551a7d. 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/DEF058903911.
  date published: 2026-07-06T07:16:32Z
audio: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.742
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.355
  additional property: Energy
    type: PropertyValue
    value: 0.075
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.853
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.201
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.505
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: II. Adagio
type: MusicRecording
duration: PT8M47S
duration ms: 527426
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stephen Taylor
by artist: David Singer
by artist: William Purvis
by artist: Steven Dibner
by artist: Orpheus Chamber Orchestra
in album: Mozart: Sinfonia Concertante K.297b & K.364
  type: MusicAlbum
  date published: 1991-01-01
genre: classical
genre: classical-era
isrc code: DEF058903912
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T17:51:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1c91df4316d8751b6e899c7fa3bfa2a9decaec97e5ea0c289983ed57ebc15698
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058903912
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c91df4316d8751b6e899c7fa3bfa2a9decaec97e5ea0c289983ed57ebc15698. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058903912.
  date published: 2026-07-02T05:09:12Z
audio: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: II. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.711
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.188
  additional property: Energy
    type: PropertyValue
    value: 0.023
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.871
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.042
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.113
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: III. Andantino con variazioni
type: MusicRecording
duration: PT8M36S
duration ms: 516066
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stephen Taylor
by artist: David Singer
by artist: William Purvis
by artist: Steven Dibner
by artist: Orpheus Chamber Orchestra
in album: Mozart: Sinfonia Concertante K.297b & K.364
  type: MusicAlbum
  date published: 1991-01-01
genre: classical
genre: classical-era
isrc code: DEF058903913
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T17:09:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x269e6423d764e6177d54c149bac26f388d46e90d2ab2234aa789015bd7ccfbdf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956351
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956351
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058903913
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:38:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269e6423d764e6177d54c149bac26f388d46e90d2ab2234aa789015bd7ccfbdf. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058903913.
  date published: 2026-07-02T11:38:34Z
audio: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: III. Andantino con variazioni
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.399
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.435
  additional property: Energy
    type: PropertyValue
    value: 0.074
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.868
  additional property: Liveness
    type: PropertyValue
    value: 0.094
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.394
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.235
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major