Pith Number

pith:ELQAHNI6

pith:2026:ELQAHNI6OBAVOKT5LQY4V5SAUP

not attested not anchored not stored refs pending

Tangent classes of matroids and wonderful compactifications

Guoxiong Gao, Ronnie Cheng, Shurui Liu

arxiv:2607.05835 v1 · 2026-07-07 · math.AG · cs.AI · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ELQAHNI6OBAVOKT5LQY4V5SAUP}

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.

Cited by

1 paper in Pith

Danus: Orchestrating Mathematical Reasoning Agents with Fact-Graph Memory

Receipt and verification

First computed	2026-07-08T01:18:47.666078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22e003b51e7041572a7d5c31caf640a3ee1877995b74b87e0802f555da3a9944

Aliases

arxiv: 2607.05835 · arxiv_version: 2607.05835v1 · doi: 10.48550/arxiv.2607.05835 · pith_short_12: ELQAHNI6OBAV · pith_short_16: ELQAHNI6OBAVOKT5 · pith_short_8: ELQAHNI6

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/ELQAHNI6OBAVOKT5LQY4V5SAUP \
  | 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: 22e003b51e7041572a7d5c31caf640a3ee1877995b74b87e0802f555da3a9944

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05245054687120c201c88a982e055b0f4fd201e1fabbbba4a6721433e6dbcbaf",
    "cross_cats_sorted": [
      "cs.AI",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-07-07T04:56:22Z",
    "title_canon_sha256": "cbeb53e86e3ed65f0a33df34e50abf5c536f1ec272181027b9b07c28c7ce9b40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.05835",
    "kind": "arxiv",
    "version": 1
  }
}