Pith Number

pith:QGB6QYSA

pith:2013:QGB6QYSARUOKXD65BY6M3OQHCV

not attested not anchored not stored refs pending

Greedy Graph Colouring is a Misleading Heuristic

Ciaran McCreesh, Patrick Prosser

arxiv:1310.7741 v1 · 2013-10-29 · cs.DS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QGB6QYSARUOKXD65BY6M3OQHCV}

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	2026-05-18T03:08:35.394807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8183e862408d1cab8fdd0e3ccdba0715575b05c36bd4ab67856dab92b86a38e5

Aliases

arxiv: 1310.7741 · arxiv_version: 1310.7741v1 · doi: 10.48550/arxiv.1310.7741 · pith_short_12: QGB6QYSARUOK · pith_short_16: QGB6QYSARUOKXD65 · pith_short_8: QGB6QYSA

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/QGB6QYSARUOKXD65BY6M3OQHCV \
  | 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: 8183e862408d1cab8fdd0e3ccdba0715575b05c36bd4ab67856dab92b86a38e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17c13141c7a43feb31936821f6bc9cd788080eddd42f9f9bc4ac5b17f736716d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-10-29T10:23:35Z",
    "title_canon_sha256": "43a8d3d3db31a81e5f32f03eb63d8cfba300be66fcac034b2b50ae341866bf5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.7741",
    "kind": "arxiv",
    "version": 1
  }
}