Research corpus ConsensusBLC-STUDY-0376

Deterministic proposer lookahead

EIP 7917, Deterministic proposer lookahead. At the start of each epoch, pre-calculate and store in the beacon_state a deterministic proposer_lookahead for the next MIN_SEED_LOOKAHEAD + 1 epochs.

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Record

Authors: Lin Oshitani , Justin Drake
Date: 2025
Publisher: Lin Oshitani , Justin Drake
Version: Source cited by the 2025 study. The study is the reading. This page does not add a second essay.
Document ID: BLC-STUDY-0376
DOI: None recorded
Last reviewed: 1 October 2026
Licence: No licence recorded. Rights status under review.

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Direct answer

EIP 7917, Deterministic proposer lookahead. At the start of each epoch, pre-calculate and store in the beacon_state a deterministic proposer_lookahead for the next MIN_SEED_LOOKAHEAD + 1 epochs.

Where to read

Official source — EIP 7917
Blockchain Lab study, the canonical readingOriginal commentary. Not a transcription of the paper.

Metadata and commentary only. The reading is the study page.

Full text

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What changed

Status in the source: Final. A reading of the public specification, not a copy of it and not a certification.

Relationships

Canonical readingEIP 7917 study
Related paperPBFT
Related paperTendermint
Related paperRaft

Cite this record

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Author–date

Oshitani, L., & Drake, J. (2025). Deterministic proposer lookahead. Lin Oshitani , Justin Drake. https://eips.ethereum.org/EIPS/eip-7917

BibTeX

@techreport{eip79172025,
  title = {Deterministic proposer lookahead},
  author = {Lin Oshitani , Justin Drake},
  year = {2025},
  institution = {Lin Oshitani , Justin Drake},
  url = {https://eips.ethereum.org/EIPS/eip-7917},
  note = {Rights status: Official external source only. Blockchain Lab record: https://blockchainlab.com/research/corpus/papers/eip-7917}
}

RIS

TY  - RPRT
TI  - Deterministic proposer lookahead
AU  - Lin Oshitani
AU  - Justin Drake
PY  - 2025
PB  - Lin Oshitani , Justin Drake
UR  - https://eips.ethereum.org/EIPS/eip-7917
N1  - Rights status: Official external source only
ER  -

CSL-JSON

[
  {
    "type": "report",
    "id": "BLC-STUDY-0376",
    "title": "Deterministic proposer lookahead",
    "author": [
      {
        "literal": "Lin Oshitani"
      },
      {
        "literal": "Justin Drake"
      }
    ],
    "issued": {
      "date-parts": [
        [
          2025
        ]
      ]
    },
    "publisher": "Lin Oshitani , Justin Drake",
    "URL": "https://eips.ethereum.org/EIPS/eip-7917",
    "note": "Rights status: Official external source only. Not a licence to republish the paper."
  }
]

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Rights record

Source status: Official source
Use status: Metadata and commentary only. The reading is the study page.
Rights: Official external source only
Training and retrieval: Not permitted from this site. There is no rights-cleared full text to retrieve or to train on.

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