Osvaldo Ribó
type: MusicGroup
genre: tango
description: Andrés Bartolomé Osuna (30 November 1927 – 19 April 2015), better known by his stage name Osvaldo Ribó, was an Argentine tango singer. He was the father of British actress Olivia Hussey (1951–2024) an
popularity: 7
followers: 46
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a27de1425b174c1504b544fe9452f2a5a38bc4769f03a4592e6ffb29deae0cb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953999
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953999
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31154dbd-3015-4441-a393-47436d8bdaca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31154dbd-3015-4441-a393-47436d8bdaca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/31154dbd-3015-4441-a393-47436d8bdaca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:20:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0a27de1425b174c1504b544fe9452f2a5a38bc4769f03a4592e6ffb29deae0cb","name":"Osvaldo Ribó","registered_at":"2026-06-16T06:41:06Z","symbol":"NIM0969182","token_address":"0x44cb37ca2793fd546208fe69b819112680ed47b4","type":"artist","uuid":"31154dbd-3015-4441-a393-47436d8bdaca"}
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a27de1425b174c1504b544fe9452f2a5a38bc4769f03a4592e6ffb29deae0cb. Chain 2 (Bitcoin): anchored in block 953999 (2026-06-16T20:20:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31154dbd-3015-4441-a393-47436d8bdaca.json and https://artists.proofprofile.net/proofs/artist/31154dbd-3015-4441-a393-47436d8bdaca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:20:58Z
  text: {"copyright_id":"0x0a27de1425b174c1504b544fe9452f2a5a38bc4769f03a4592e6ffb29deae0cb","name":"Osvaldo Ribó","registered_at":"2026-06-16T06:41:06Z","symbol":"NIM0969182","token_address":"0x44cb37ca2793fd546208fe69b819112680ed47b4","type":"artist","uuid":"31154dbd-3015-4441-a393-47436d8bdaca"}