Pith Number

pith:U5DW35NU

pith:2013:U5DW35NUW3VOMWLVGMZ3ZPLFVS

not attested not anchored not stored refs pending

On Chromatic Number of Kneser Hypergraphs

Hossein Hajiabolhassan, Meysam Alishahi

arxiv:1302.5394 v2 · 2013-02-21 · 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{U5DW35NUW3VOMWLVGMZ3ZPLFVS}

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	2026-05-18T01:36:07.498459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7476df5b4b6eae659753333bcbd65ac8459683b0593176e0c7bd10f0828341a

Aliases

arxiv: 1302.5394 · arxiv_version: 1302.5394v2 · doi: 10.48550/arxiv.1302.5394 · pith_short_12: U5DW35NUW3VO · pith_short_16: U5DW35NUW3VOMWLV · pith_short_8: U5DW35NU

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/U5DW35NUW3VOMWLVGMZ3ZPLFVS \
  | 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: a7476df5b4b6eae659753333bcbd65ac8459683b0593176e0c7bd10f0828341a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc2d6000c0787010bcf5a744df9e9d5820921236778c43d8db02cc752bfd3a9b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-02-21T20:07:53Z",
    "title_canon_sha256": "6e35ceb40064a3209b560e7de9933aac9ad541178362a76ef6460a9d86d1cc7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.5394",
    "kind": "arxiv",
    "version": 2
  }
}