Pith Number

pith:LGVKZEQL

pith:2019:LGVKZEQLBONSFWAH5SSTVVESDR

not attested not anchored not stored refs pending

Colouring bottomless rectangles and arborescences

D\"om\"ot\"or P\'alv\"olgyi, Jean Cardinal, Kolja Knauer, Narmada Varadarajan, Piotr Micek, Torsten Ueckerdt

arxiv:1912.05251 v3 · 2019-12-11 · 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{LGVKZEQLBONSFWAH5SSTVVESDR}

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.

Cited by

1 paper in Pith

Extraction Theorems With Small Extraction Numbers

Receipt and verification

First computed	2026-07-05T01:33:18.574659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59aaac920b0b9b22d807eca53ad4921c53b6c392bd1f85c3cda7d48ec6b8f37c

Aliases

arxiv: 1912.05251 · arxiv_version: 1912.05251v3 · doi: 10.48550/arxiv.1912.05251 · pith_short_12: LGVKZEQLBONS · pith_short_16: LGVKZEQLBONSFWAH · pith_short_8: LGVKZEQL

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/LGVKZEQLBONSFWAH5SSTVVESDR \
  | 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: 59aaac920b0b9b22d807eca53ad4921c53b6c392bd1f85c3cda7d48ec6b8f37c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c15244d7214915fc5e993caad388835cfbc5be8d904c67f2a1bfec15c10fc84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-12-11T12:11:04Z",
    "title_canon_sha256": "2ea72018303e191991242814a444c990b52ae03c42eb64b82cd545241ddfb950"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.05251",
    "kind": "arxiv",
    "version": 3
  }
}