Pith Number

pith:BTQNGH4H

pith:2013:BTQNGH4HDP5PVYZAIR2BNWGOTY

not attested not anchored not stored refs pending

A new proof for the Erd\H{o}s-Ko-Rado Theorem for the alternating group

Bahman Ahmadi, Karen Meagher

arxiv:1302.7313 v1 · 2013-02-28 · 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{BTQNGH4HDP5PVYZAIR2BNWGOTY}

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	2026-05-18T03:32:16.240744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ce0d31f871bfafae320447416d8ce9e3cb44bd2da68c63291ddb3249f6bee23

Aliases

arxiv: 1302.7313 · arxiv_version: 1302.7313v1 · doi: 10.48550/arxiv.1302.7313 · pith_short_12: BTQNGH4HDP5P · pith_short_16: BTQNGH4HDP5PVYZA · pith_short_8: BTQNGH4H

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/BTQNGH4HDP5PVYZAIR2BNWGOTY \
  | 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: 0ce0d31f871bfafae320447416d8ce9e3cb44bd2da68c63291ddb3249f6bee23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1584b86c80ee946aa0177522078d5a94d67685c78866d96f6a7087199206bfdf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-02-28T20:50:16Z",
    "title_canon_sha256": "ce22f213df02c1657b760fcf914d931cc5eb5e132daf6ddc6f187431111732c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.7313",
    "kind": "arxiv",
    "version": 1
  }
}