Osvaldo Peredo
type: MusicGroup
genre: tango
description: Osvaldo Peredo Leigue (also Osvaldo Peredo Leigh, nom de guerre: Chato) (1941 – 12 January 2021) was a Bolivian communist militant and physician. He lived in Santa Cruz de la Sierra, Bolivia, where he
popularity: 6
followers: 402
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa0e7fa7ca64b9ddaf4a6dd4887ac97d32bb052cd57066f2f6ebdc9c946ced53b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6d594846-b397-4d8f-91dd-12acc3196572.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6d594846-b397-4d8f-91dd-12acc3196572.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6d594846-b397-4d8f-91dd-12acc3196572
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa0e7fa7ca64b9ddaf4a6dd4887ac97d32bb052cd57066f2f6ebdc9c946ced53b","name":"Osvaldo Peredo","registered_at":"2026-06-17T03:43:54Z","symbol":"NIM1270487","token_address":"0xd5cc8fc902c612b60a50b3cfa08d47adb53e1fac","type":"artist","uuid":"6d594846-b397-4d8f-91dd-12acc3196572"}
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 0xa0e7fa7ca64b9ddaf4a6dd4887ac97d32bb052cd57066f2f6ebdc9c946ced53b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d594846-b397-4d8f-91dd-12acc3196572.json and https://artists.proofprofile.net/proofs/artist/6d594846-b397-4d8f-91dd-12acc3196572.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xa0e7fa7ca64b9ddaf4a6dd4887ac97d32bb052cd57066f2f6ebdc9c946ced53b","name":"Osvaldo Peredo","registered_at":"2026-06-17T03:43:54Z","symbol":"NIM1270487","token_address":"0xd5cc8fc902c612b60a50b3cfa08d47adb53e1fac","type":"artist","uuid":"6d594846-b397-4d8f-91dd-12acc3196572"}
album: Tangos De Siempre
  type: MusicAlbum
  date published: 2006-01-02
album: El Cantor
  type: MusicAlbum
  date published: 2022-01-22