Pith Number

pith:A2GLU77O

pith:2018:A2GLU77OHYYWUQTCG5AO5KMFIG

not attested not anchored not stored refs pending

Weak Dynamic Coloring of Planar Graphs

Caroline Accurso, Leaha Hand, Paul Wenger, Sogol Jahanbekam, Vitaliy Chernyshov

arxiv:1802.05953 v1 · 2018-02-16 · 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{A2GLU77OHYYWUQTCG5AO5KMFIG}

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	2026-05-18T00:23:10.351330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

068cba7fee3e316a42623740eea98541a0831da2f46b99862f908088d7beb909

Aliases

arxiv: 1802.05953 · arxiv_version: 1802.05953v1 · doi: 10.48550/arxiv.1802.05953 · pith_short_12: A2GLU77OHYYW · pith_short_16: A2GLU77OHYYWUQTC · pith_short_8: A2GLU77O

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/A2GLU77OHYYWUQTCG5AO5KMFIG \
  | 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: 068cba7fee3e316a42623740eea98541a0831da2f46b99862f908088d7beb909

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f980c0d903bd71a77c4ed7c6b86d05f6c3b020fd6cc50687f55e4b37a466313",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-02-16T14:39:53Z",
    "title_canon_sha256": "497c3ad926e91d8d8151cfa8c103889842cd2932c7178a858744f871c2f43428"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05953",
    "kind": "arxiv",
    "version": 1
  }
}