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Research corpusConsensusBLC-STUDY-0151

Ouroboros Praos: An Adaptively-Secure, Semi-synchronous Proof-of-Stake Protocol

Praos hides who the slot leader is until they speak, and it tolerates a semi-synchronous delay, so an adaptive adversary cannot target the leader in advance.

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Record

Authors
Bernardo David, Peter Gaži, Aggelos Kiayias and Alexander Russell
Date
2018
Publisher
Bernardo David, Peter Gaži, Aggelos Kiayias and Alexander Russell
Version
Source cited by the 2018 study. The study is the reading. This page does not add a second essay.
Document ID
BLC-STUDY-0151
DOI
None recorded
Last reviewed
1 October 2026
Licence
No licence recorded. Rights status under review.

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Direct answer

Praos hides who the slot leader is until they speak, and it tolerates a semi-synchronous delay, so an adaptive adversary cannot target the leader in advance.

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Full text

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Author–date

David, B., Gaži, P., Kiayias, A., & Russell, A. (2018). Ouroboros Praos: An Adaptively-Secure, Semi-synchronous Proof-of-Stake Protocol. Bernardo David, Peter Gaži, Aggelos Kiayias and Alexander Russell. https://eprint.iacr.org/2017/573

BibTeX

@techreport{ouroborospraos2018,
  title = {Ouroboros Praos: An Adaptively-Secure, Semi-synchronous Proof-of-Stake Protocol},
  author = {Bernardo David, Peter Gaži, Aggelos Kiayias and Alexander Russell},
  year = {2018},
  institution = {Bernardo David, Peter Gaži, Aggelos Kiayias and Alexander Russell},
  url = {https://eprint.iacr.org/2017/573},
  note = {Rights status: Official external source only. Blockchain Lab record: https://blockchainlab.com/research/corpus/papers/ouroboros-praos}
}

RIS

TY  - RPRT
TI  - Ouroboros Praos: An Adaptively-Secure, Semi-synchronous Proof-of-Stake Protocol
AU  - Bernardo David
AU  - Peter Gaži
AU  - Aggelos Kiayias
AU  - Alexander Russell
PY  - 2018
PB  - Bernardo David, Peter Gaži, Aggelos Kiayias and Alexander Russell
UR  - https://eprint.iacr.org/2017/573
N1  - Rights status: Official external source only
ER  -

CSL-JSON

[
  {
    "type": "report",
    "id": "BLC-STUDY-0151",
    "title": "Ouroboros Praos: An Adaptively-Secure, Semi-synchronous Proof-of-Stake Protocol",
    "author": [
      {
        "literal": "Bernardo David"
      },
      {
        "literal": "Peter Gaži"
      },
      {
        "literal": "Aggelos Kiayias"
      },
      {
        "literal": "Alexander Russell"
      }
    ],
    "issued": {
      "date-parts": [
        [
          2018
        ]
      ]
    },
    "publisher": "Bernardo David, Peter Gaži, Aggelos Kiayias and Alexander Russell",
    "URL": "https://eprint.iacr.org/2017/573",
    "note": "Rights status: Official external source only. Not a licence to republish the paper."
  }
]

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Source status
Official source
Use status
Metadata and commentary only. The reading is the study page.
Rights
Official external source only
Training and retrieval
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