Pith Number

pith:WALU5PW2

pith:2026:WALU5PW2SN3KKH5HLNHDSNJKTZ

not attested not anchored not stored refs pending

Risk-Controlled Lean-as-Judge for Natural-Language Mathematical Reasoning

Haitham Bou Ammar, Matthieu Zimmer, Pauline Bourigault, Rasul Tutunov, Xiaotong Ji

arxiv:2605.28365 v1 · 2026-05-27 · cs.AI · cs.CL · cs.LO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WALU5PW2SN3KKH5HLNHDSNJKTZ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-28T01:05:16.058666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0174ebeda9376a51fa75b4e39352a9e704090ef5ab033bc4a3cf3ccc40348b8

Aliases

arxiv: 2605.28365 · arxiv_version: 2605.28365v1 · doi: 10.48550/arxiv.2605.28365 · pith_short_12: WALU5PW2SN3K · pith_short_16: WALU5PW2SN3KKH5H · pith_short_8: WALU5PW2

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/WALU5PW2SN3KKH5HLNHDSNJKTZ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b0174ebeda9376a51fa75b4e39352a9e704090ef5ab033bc4a3cf3ccc40348b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7022bf24598c08051a4293ca102d3879f5dcb74d4cb4007eef58fc6eb0cb869e",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.LO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-27T11:59:28Z",
    "title_canon_sha256": "39085c431845fde385cb9036c79112693b2b9d5891d971021b950a81dd4db57d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.28365",
    "kind": "arxiv",
    "version": 1
  }
}