ARS Brunensis Chamber Choir
type: MusicGroup
genre: opera
popularity: 3
followers: 7
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5ff5c0d0382d6fbca41d8934a9434b937e01f8a9591c8bb705264e65571916. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da416daa-ebac-459a-a18a-aaae0c2af0f0.json and https://artists.proofprofile.net/proofs/artist/da416daa-ebac-459a-a18a-aaae0c2af0f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
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track: Ciro in Babilonia (Cyrus in Babylon): Act II: Aria: Misero me, che intesi! (Baldassare, Magi)

Ciro in Babilonia (Cyrus in Babylon): Act II: Aria: Misero me, che intesi! (Baldassare, Magi)
type: MusicRecording
duration: PT8M40S
duration ms: 520520
explicit: false
by artist: Gioachino Rossini
by artist: Riccardo Botta
by artist: Anna Rita Gemmabella
by artist: Luisa Islam-Ali-Zade
by artist: Maria Soulis
by artist: Wojtek Gierlach
by artist: Giorgio Trucco
by artist: Giovanni Bellavia
by artist: ARS Brunensis Chamber Choir
by artist: Württembergische Philharmonie Reutlingen
by artist: Antonino Fogliani
in album: Rossini: Ciro in Babilonia
  type: MusicAlbum
  date published: 2007-02-27
genre: classical
genre: opera
isrc code: HKI190619009
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  value: registered
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additional property: OTSVerificationAPI
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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
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additional property: ContentHash
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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 0x0fba6e9f07c66a55c51cc6c4242aa0e04f169530aaa66b3cf4eed5f0cdb19cee. 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/HKI190619009.
  date published: 2026-07-08T08:56:20Z
audio: Ciro in Babilonia (Cyrus in Babylon): Act II: Aria: Misero me, che intesi! (Baldassare, Magi)
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 10
  additional property: Mode (Major/Minor)
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  additional property: Key Name
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    value: Bb
  additional property: Mode Name
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    value: Major