Take this check

Reproduce the pinned Lean release and report the build and certificate result within the published-cache replay trust boundary.

2026-alexchengyuli-erdos-848 · task erdos-848-lean-reproduction

Task type: reproduce build
Entry points: v1.0.5-kernel release and finite certificates
Source PDF: Download the exact manuscript
Pinned repository PDF (the public claim also links SSRN 7230480) · version 54a910e7bcda…
Code: Open the formalization repository · pinned commit bb8e1b10b006…
Effort: about 2 hours for the published-cache replay; a fresh source build is separate and may take multiple days (estimated by significance-editor)
Prerequisites: Lean and the repository's pinned release instructions

Status

Open.

How to do this

Download the exact manuscript above and start with the stated entry points. The version hash identifies the file for the eventual record; you do not need to calculate it before reading.
Read or reproduce only the stated scope and note the method you actually used.
Submit what you found through the linked attestation form below, using the record, task, scope, and manuscript hash shown here. No Significance account is required; GitHub may ask you to sign in.

Open attestation form

Attestation template

Fill only what you did. State what you checked and found—not whether the whole proof is correct.

id: att-erdos-848-lean-reproduction
task_id: erdos-848-lean-reproduction
reviewer: '[your name or handle]'
scope: Reproduce the pinned Lean release and report the build and certificate 
  result within the published-cache replay trust boundary.
manuscript_sha256: 
  54a910e7bcdaaaf03d24aee2685083f3b14a55be325ce54f6bc18e96bb890a8b
asserted_at: '[YYYY-MM-DDTHH:MM:SSZ]'
method: '[what you actually did: read / rederived / rebuilt / compared]'
finding: '[what you checked and found about exactly this scope]'
limits: '[what you did not check — optional but encouraged]'