Pith Number

pith:4OVKBBS2

pith:2026:4OVKBBS2LVK3A47MQ7MAZTTTO6

not attested not anchored not stored refs pending

LeanMarathon: Toward Reliable AI Co-Mathematicians through Long-Horizon Lean Autoformalization

Fanghui Liu, Jason D. Lee, Taiji Suzuki, Yuanhe Zhang, Yuekai Sun

arxiv:2606.05400 v1 · 2026-06-03 · cs.AI · cs.CL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4OVKBBS2LVK3A47MQ7MAZTTTO6}

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	2026-06-05T00:13:56.444524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3aaa0865a5d55b073ec87d80cce7377811ee7d9c1e14d8af217494fc26b78b3

Aliases

arxiv: 2606.05400 · arxiv_version: 2606.05400v1 · doi: 10.48550/arxiv.2606.05400 · pith_short_12: 4OVKBBS2LVK3 · pith_short_16: 4OVKBBS2LVK3A47M · pith_short_8: 4OVKBBS2

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/4OVKBBS2LVK3A47MQ7MAZTTTO6 \
  | 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: e3aaa0865a5d55b073ec87d80cce7377811ee7d9c1e14d8af217494fc26b78b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d163601058a00405f1e6d1a1295675f5d2c96ee9a9c9b4b470b9ad6a5fced97b",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-03T20:09:39Z",
    "title_canon_sha256": "a4f9f7b1d389afe30e832c749b5ae538cf3185aca9088f1406931666123fc9cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.05400",
    "kind": "arxiv",
    "version": 1
  }
}