Felix Borowski
type: MusicGroup
description: Felix Borowski (March 10, 1872 – September 6, 1956) was a British/American composer and teacher. He taught composers Silvestre Revueltas and Louise Cooper Spindle at Chicago Musical College. thumb|Pi
popularity: 5
followers: 90
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfc1ca5abfbdd5499f8f6d449f3c019b40df5e320caa672095da805c818bf88. Chain 2 (Bitcoin): anchored in block 954013 (2026-06-16T22:27:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33778695-a857-4804-8499-b25fdb471045.json and https://artists.proofprofile.net/proofs/artist/33778695-a857-4804-8499-b25fdb471045.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:27:01Z
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album: Felix Borowski - Organ Works (World Premiere Recording)
  type: MusicAlbum
  date published: 2020-01-01
album: Valsette in G Major
  type: MusicAlbum
  date published: 2020-09-11
album: Felix Borowski Adoration (Violin _ Geeyoo Lim, Piano _ Chaeyeon Yun)
  type: MusicAlbum
  date published: 2024-01-26
track: Adoration
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  by artist: Felix Borowski
  by artist: Maria Perucka
  by artist: Roman Perucki
  in album: Muzyka romantyczna w Katedrze Oliwskiej. Romantic music in the Oliwa Cathedral
    type: MusicAlbum
    date published: 2014-04-10
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546620c4fc3bbb81ee0cb5c562a02f7b8f4c38b73761c537c36deffd99ec1124. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QMFME1468178.
    date published: 2026-07-30T09:37:10Z
  audio: Adoration
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    additional property: Danceability
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    additional property: Instrumentalness
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    additional property: Key Name
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      value: D
    additional property: Mode Name
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track: Adoration
  type: MusicRecording
  duration: PT5M2S
  duration ms: 302546
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  by artist: Felix Borowski
  by artist: Kerstin Tenney
  by artist: Michael Karcher-Young
  in album: Light
    type: MusicAlbum
    date published: 2023-07-07
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6fa3046fd7c1c5801d191c5dfa967e2af255d726729867c90e7a9044793d40. 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/QMEU32219615.
    date published: 2026-07-08T03:20:19Z
  audio: Adoration
    type: AudioObject
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    additional property: Energy
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    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: 0.128

Liveness
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Valence (Positivity)
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Loudness (dB)
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Key Name
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Mode Name
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