Raphael Ensemble
type: MusicGroup
genre: chamber music
description: The Raphael Ensemble is a classical string sextet formed in 1982 that concentrates on expanding the representation of popular and neglected works of the quintet and sextet repertoire. Their debut rec
popularity: 3
followers: 27
additional property: CopyrightID
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: OTSProofURL
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb769689673cb0c0f81be4494fb6927756feb96b0957ede6887e4f4494b5fd92a. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1f8c550-112a-4618-9dfd-10b0469bded3.json and https://artists.proofprofile.net/proofs/artist/f1f8c550-112a-4618-9dfd-10b0469bded3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
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album: Korngold: String Sextet – Schoenberg: Verklärte Nacht
  type: MusicAlbum
  date published: 1990-09-01
album: Martinů & Schulhoff: String Sextets
  type: MusicAlbum
  date published: 1992-04-01
album: Arensky: String Quartet No. 2 – Tchaikovsky: Souvenir de Florence
  type: MusicAlbum
  date published: 1993-10-01