Pith Number

pith:AN4EDQFP

pith:2018:AN4EDQFPUJ3PL47KIRJCYL56DY

not attested not anchored not stored refs pending

Embedding 5-planar graphs in three pages

Weihua Yang, Xiaxia Guan

arxiv:1801.07097 v1 · 2018-01-22 · 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{AN4EDQFPUJ3PL47KIRJCYL56DY}

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	2026-05-18T00:25:22.277834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

037841c0afa276f5f3ea44522c2fbe1e0c20019f5d42d3f0cf779b9e5369211c

Aliases

arxiv: 1801.07097 · arxiv_version: 1801.07097v1 · doi: 10.48550/arxiv.1801.07097 · pith_short_12: AN4EDQFPUJ3P · pith_short_16: AN4EDQFPUJ3PL47K · pith_short_8: AN4EDQFP

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/AN4EDQFPUJ3PL47KIRJCYL56DY \
  | 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: 037841c0afa276f5f3ea44522c2fbe1e0c20019f5d42d3f0cf779b9e5369211c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16cda382e16c21fbb4dd1e87c6a4523f2e01875236bbdf5707309dc0070a1dbf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-01-22T13:53:12Z",
    "title_canon_sha256": "fc7c57070b4f85056070924f0f33c67e662f20cf6089a1ce061a9446a49718e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07097",
    "kind": "arxiv",
    "version": 1
  }
}