Pith Number

pith:C3Q3EODW

pith:2018:C3Q3EODW2MISJOUUPWEUVLRP55

not attested not anchored not stored refs pending

Planar anti-Ramsey numbers of matchings

Gang Chen, Yongxin Lan, Zi-Xia Song

arxiv:1803.04889 v1 · 2018-03-13 · 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{C3Q3EODW2MISJOUUPWEUVLRP55}

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	2026-05-18T00:21:15.518693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16e1b23876d31124ba947d894aae2fef62b38627a0648d7e4b114718b90fa0af

Aliases

arxiv: 1803.04889 · arxiv_version: 1803.04889v1 · doi: 10.48550/arxiv.1803.04889 · pith_short_12: C3Q3EODW2MIS · pith_short_16: C3Q3EODW2MISJOUU · pith_short_8: C3Q3EODW

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/C3Q3EODW2MISJOUUPWEUVLRP55 \
  | 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: 16e1b23876d31124ba947d894aae2fef62b38627a0648d7e4b114718b90fa0af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b77e7ea049518f91a0cdf0a0a2e13eab51851df484da7c3d4f019b9b878f8d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-03-13T15:38:57Z",
    "title_canon_sha256": "dda275928944261a76370ed9d3ca1a953ef91df421f3f8d5d68117fb9a9b86bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04889",
    "kind": "arxiv",
    "version": 1
  }
}