Pith Number

pith:OFOZ6PQD

pith:2017:OFOZ6PQDDCV64EZV3B64HHNDSN

not attested not anchored not stored refs pending

Chromatic Number and Dichromatic Polynomial of Digraphs

Afrouz Jabalameli, Amir Hossein Ghodrati, Morteza Saghafian, Saeed Akbari

arxiv:1711.06293 v1 · 2017-11-16 · 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{OFOZ6PQDDCV64EZV3B64HHNDSN}

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

Improved lower bounds for the maximum order of an induced acyclic subgraph

Receipt and verification

First computed	2026-05-18T00:30:21.549235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

715d9f3e0318abee1335d87dc39da393498d6c92779190461061b41a9f127c1d

Aliases

arxiv: 1711.06293 · arxiv_version: 1711.06293v1 · doi: 10.48550/arxiv.1711.06293 · pith_short_12: OFOZ6PQDDCV6 · pith_short_16: OFOZ6PQDDCV64EZV · pith_short_8: OFOZ6PQD

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/OFOZ6PQDDCV64EZV3B64HHNDSN \
  | 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: 715d9f3e0318abee1335d87dc39da393498d6c92779190461061b41a9f127c1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26afa5486c316aeb2aa01723a5bb2a74b355ad8a494d1f20f974b913757dd1d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-11-16T19:23:00Z",
    "title_canon_sha256": "75aade21b02eceee8fc42c217d6592736e4ae1b8c222ab2b22907f65df455ef2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.06293",
    "kind": "arxiv",
    "version": 1
  }
}