Pith Number

pith:7EEMBSTM

pith:2018:7EEMBSTMJA2UPA2YYHGNKETNCA

not attested not anchored not stored refs pending

Determination of the 4-genus of a complete graph (with an appendix)

Beifang Chen, Hui Yang, Serge Lawrencenko

arxiv:1803.03855 v1 · 2018-03-10 · 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{7EEMBSTMJA2UPA2YYHGNKETNCA}

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	2026-05-18T00:20:55.525305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f908c0ca6c4835478358c1ccd5126d10388d3529665d3a51871d5487de915af5

Aliases

arxiv: 1803.03855 · arxiv_version: 1803.03855v1 · doi: 10.48550/arxiv.1803.03855 · pith_short_12: 7EEMBSTMJA2U · pith_short_16: 7EEMBSTMJA2UPA2Y · pith_short_8: 7EEMBSTM

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/7EEMBSTMJA2UPA2YYHGNKETNCA \
  | 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: f908c0ca6c4835478358c1ccd5126d10388d3529665d3a51871d5487de915af5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "feeb44ece2c7f171c58b26935946c2aa724e357b179cb4815bc257e557b370fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-03-10T19:18:08Z",
    "title_canon_sha256": "fc0d61f5b7f3b599ca75d7556b4a629c994dc95d9f38b8fdcb2cc7a5cad7b3f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.03855",
    "kind": "arxiv",
    "version": 1
  }
}