Pith Number

pith:D3QQRCVC

pith:2015:D3QQRCVC2V4HDOFTJRJSVSAQQU

not attested not anchored not stored refs pending

List coloring digraphs

Ararat Harutyunyan, Julien Bensmail, Ngoc Khang Le

arxiv:1510.03578 v2 · 2015-10-13 · 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{D3QQRCVC2V4HDOFTJRJSVSAQQU}

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	2026-05-18T01:29:29.096272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ee1088aa2d57871b8b34c532ac810852aee7a0af164be8f589a8ad64451d19b

Aliases

arxiv: 1510.03578 · arxiv_version: 1510.03578v2 · doi: 10.48550/arxiv.1510.03578 · pith_short_12: D3QQRCVC2V4H · pith_short_16: D3QQRCVC2V4HDOFT · pith_short_8: D3QQRCVC

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/D3QQRCVC2V4HDOFTJRJSVSAQQU \
  | 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: 1ee1088aa2d57871b8b34c532ac810852aee7a0af164be8f589a8ad64451d19b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5aa200312d4404f23d13fa9330a286e60e555b6ce4160348b5bc796bdb630b64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-10-13T08:56:30Z",
    "title_canon_sha256": "329c11b0701efd5287e75f73242b75fc01633e4c57610b02a6140668c6414598"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.03578",
    "kind": "arxiv",
    "version": 2
  }
}