Pith Number

pith:7BICHOH2

pith:2014:7BICHOH2TNPRYDVQNMMRYTQN4O

not attested not anchored not stored refs pending

A Survey on the Computational Complexity of Colouring Graphs with Forbidden Subgraphs

Dani\"el Paulusma, Jian Song, Matthew Johnson, Petr A. Golovach

arxiv:1407.1482 v8 · 2014-07-06 · cs.CC · cs.DM · 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{7BICHOH2TNPRYDVQNMMRYTQN4O}

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	2026-05-18T01:20:50.707816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f85023b8fa9b5f1c0eb06b191c4e0de3aa0e874ee56b80a6c811a8929c0173e2

Aliases

arxiv: 1407.1482 · arxiv_version: 1407.1482v8 · doi: 10.48550/arxiv.1407.1482 · pith_short_12: 7BICHOH2TNPR · pith_short_16: 7BICHOH2TNPRYDVQ · pith_short_8: 7BICHOH2

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/7BICHOH2TNPRYDVQNMMRYTQN4O \
  | 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: f85023b8fa9b5f1c0eb06b191c4e0de3aa0e874ee56b80a6c811a8929c0173e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c78611a23aa525530ca04c92a3e6acada21d76c693c58da4de96f529008eb22b",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-07-06T11:20:46Z",
    "title_canon_sha256": "f869329b9ce16d99b720941e3d6db4f0e5649098e7c8262c3aa1df124a0d9fab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.1482",
    "kind": "arxiv",
    "version": 8
  }
}