Pavão String Quartet
type: MusicGroup
popularity: 9
followers: 172
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5736be4e45d4819124605f5c5da07a0cb8b7b049b20393f0593499458b08af7b. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/904a3cbd-8417-4214-876a-91b920224488.json and https://artists.proofprofile.net/proofs/artist/904a3cbd-8417-4214-876a-91b920224488.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
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album: A Christmas Collection
  type: MusicAlbum
  date published: 2007-11-11
album: Elgar and Bax
  type: MusicAlbum
  date published: 2007-11-11
album: Dreaming
  type: MusicAlbum
  date published: 2009-07-15
  track: Fly Me To The Moon
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    duration: PT5M1S
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    by artist: Pavão String Quartet
    in album: Dreaming
      type: MusicAlbum
      date published: 2009-07-15
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    additional property: CopyrightID
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    additional property: OTSVerificationAPI
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      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRFX0800067
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0xc536305b70e3cc5768ba7883f35614bc13bbc81af19da6a08229264c37faace9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBRFX0800067.
      date published: 2026-07-04T10:04:33Z
    audio: Fly Me To The Moon
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      additional property: Tempo (BPM)
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        value: 77.418
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      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.076
      additional property: Energy
        type: PropertyValue
        value: 0.123
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
        value: 0.788
      additional property: Liveness
        type: PropertyValue
        value: 0.135
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.039
      additional property: Loudness (dB)
        type: PropertyValue
        value: -20.632
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Carlo Martelli: String Quartets I & II, Terzetto, Prelude and Fugue
  type: MusicAlbum
  date published: 2013-01-08
track: Wiegenlied, K.350 - Arranged By Nicholas Ellis: Schlafe, mein Prinzchen, schlaf ein
  type: MusicRecording
  duration: PT3M38S
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  explicit: false
  by artist: Friedrich Anton Fleischmann
  by artist: Catrin Finch
  by artist: Pavão String Quartet
  in album: Calm Mozart
    type: MusicAlbum
    date published: 2019-12-20
  isrc code: DEN961300500
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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    value: 2026-07-06T06:56:49Z
  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 0x99caa7d55af6b8cf879037352267184258be70c3c9977bafbddbd6c6880c35b6. 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/DEN961300500.
    date published: 2026-07-06T06:56:49Z
  audio: Wiegenlied, K.350 - Arranged By Nicholas Ellis: Schlafe, mein Prinzchen, schlaf ein
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    additional property: Danceability
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    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
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    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Instrumentalness
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value: 0.313

Liveness
type: PropertyValue
value: 0.124

Valence (Positivity)
type: PropertyValue
value: 0.094

Loudness (dB)
type: PropertyValue
value: -18.884

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Wiegenlied, K.350 - Arranged By Nicholas Ellis: Schlafe, mein Prinzchen, schlaf ein
type: MusicRecording
duration: PT3M38S
duration ms: 218960
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Friedrich Anton Fleischmann
by artist: Catrin Finch
by artist: Pavão String Quartet
in album: Mozart - Classics for Relaxation
  type: MusicAlbum
  date published: 2021-02-08
genre: classical
genre: classical-era
isrc code: DEN961300500
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-07-02T03:30:09Z
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 0x99caa7d55af6b8cf879037352267184258be70c3c9977bafbddbd6c6880c35b6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEN961300500.
  date published: 2026-07-02T03:30:09Z
audio: Wiegenlied, K.350 - Arranged By Nicholas Ellis: Schlafe, mein Prinzchen, schlaf ein
  type: AudioObject
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  additional property: Time Signature
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
    value: 0.107
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
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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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