Pith Number

pith:IDDLKA44

pith:2025:IDDLKA44RGPWMFXW5QHWNDEZVH

not attested not anchored not stored refs pending

Color-avoiding connected colorings and orientations

J\'ozsef Pint\'er, Kitti Varga

arxiv:2509.05143 v1 · 2025-09-05 · 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{IDDLKA44RGPWMFXW5QHWNDEZVH}

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	2026-07-05T12:05:36.763018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40c6b5039c899f6616f6ec0f668c99a9fc10356b5c5eebc3b965cd3439b360e0

Aliases

arxiv: 2509.05143 · arxiv_version: 2509.05143v1 · doi: 10.48550/arxiv.2509.05143 · pith_short_12: IDDLKA44RGPW · pith_short_16: IDDLKA44RGPWMFXW · pith_short_8: IDDLKA44

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/IDDLKA44RGPWMFXW5QHWNDEZVH \
  | 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: 40c6b5039c899f6616f6ec0f668c99a9fc10356b5c5eebc3b965cd3439b360e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df2b9669ba5594f58ff98c15bc3b7fba50ac96d3cfde7fb2890c406997fbe3a9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-09-05T14:36:30Z",
    "title_canon_sha256": "30c9db38d15d8045f47293d060e201f4046cad2adc90a0c69bedd42cda69c55a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.05143",
    "kind": "arxiv",
    "version": 1
  }
}