Pith Number

pith:5QACUTEF

pith:2018:5QACUTEFUEUYURALIXL6DCKUS2

not attested not anchored not stored refs pending

A note on choosability with defect 1 of graphs on surfaces

Djedjiga Outioua, Vida Dujmovi\'c

arxiv:1806.06149 v1 · 2018-06-15 · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5QACUTEFUEUYURALIXL6DCKUS2}

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	2026-05-18T00:13:03.535883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec002a4c85a1298a440b45d7e1895496ab35a92aba16ce656a8d7bd1f363232c

Aliases

arxiv: 1806.06149 · arxiv_version: 1806.06149v1 · doi: 10.48550/arxiv.1806.06149 · pith_short_12: 5QACUTEFUEUY · pith_short_16: 5QACUTEFUEUYURAL · pith_short_8: 5QACUTEF

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/5QACUTEFUEUYURALIXL6DCKUS2 \
  | 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: ec002a4c85a1298a440b45d7e1895496ab35a92aba16ce656a8d7bd1f363232c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4eca8e7c3692399e0e16512967dc2f60e36610124a79aca07291f313a21e7303",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-06-15T23:12:36Z",
    "title_canon_sha256": "bda4f572f5b428bfa1b22979a146dfecfe345ef6c49f38afcb01f98eb7e00e45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.06149",
    "kind": "arxiv",
    "version": 1
  }
}