Pith Number

pith:VI2OFMAW

pith:2025:VI2OFMAWGW3X666NRMF7C6BYGB

not attested not anchored not stored refs pending

Combinatorics in (2,1)-categories

Krista Zehr

arxiv:2502.03585 v3 · 2025-02-05 · math.CT · 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{VI2OFMAWGW3X666NRMF7C6BYGB}

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	2026-07-05T10:59:27.079596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa34e2b01635b77f7bcd8b0bf1783830602dd87fe7053b92244f57f1a4558078

Aliases

arxiv: 2502.03585 · arxiv_version: 2502.03585v3 · doi: 10.48550/arxiv.2502.03585 · pith_short_12: VI2OFMAWGW3X · pith_short_16: VI2OFMAWGW3X666N · pith_short_8: VI2OFMAW

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/VI2OFMAWGW3X666NRMF7C6BYGB \
  | 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: aa34e2b01635b77f7bcd8b0bf1783830602dd87fe7053b92244f57f1a4558078

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87eb4ef84ecb94213ac743082fa939232c8b85ee0e224b156bc58bfc8becd109",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2025-02-05T20:03:59Z",
    "title_canon_sha256": "a1b894abbb9836a89949a57f28d7fd54cd065b1562bf77299d15f41911a9f72f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.03585",
    "kind": "arxiv",
    "version": 3
  }
}