Carlos Figari
type: MusicGroup
genre: tango
description: Carlos Alberto Figari (3 August 1913 – 22 October 1994) was an Argentine tango pianist, composer, and orchestra conductor. Early life His parents were Lorenzo Ramón Figari and Cecilia Accialini. He
popularity: 10
followers: 181
additional property: CopyrightID
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/953988
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/2dd24d42-1902-48c0-8273-faf95145017b.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/2dd24d42-1902-48c0-8273-faf95145017b.json
additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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  value: 2026-06-16T18:23:32Z
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 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 0x722a8bbd8aa667a6a252b0cf47f66e7a9394b37ac9d55995bb0bd48bbb9614b1. Chain 2 (Bitcoin): anchored in block 953988 (2026-06-16T18:23:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2dd24d42-1902-48c0-8273-faf95145017b.json and https://artists.proofprofile.net/proofs/artist/2dd24d42-1902-48c0-8273-faf95145017b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T18:23:32Z
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album: Tecleando
  type: MusicAlbum
  date published: 1970-07-19
album: Tango Classics 097: Tanguera
  type: MusicAlbum
  date published: 2011-05-27
album: Tango Classics 096: A la parrilla
  type: MusicAlbum
  date published: 2011-05-27
album: Estano
  type: MusicAlbum
  date published: 2014-10-23
album: Estano
  type: MusicAlbum
  date published: 2019-02-09