Pith Number

pith:EKQHZOGG

pith:2014:EKQHZOGGGZ6FJ275HWSGTEVKOX

not attested not anchored not stored refs pending

An exact DSatur-based algorithm for the Equitable Coloring Problem

Daniel Sever\'in, Graciela Nasini, Isabel M\'endez-D\'iaz

arxiv:1405.7011 v1 · 2014-05-27 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EKQHZOGGGZ6FJ275HWSGTEVKOX}

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	2026-05-18T02:50:59.855198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22a07cb8c6367c54ebfd3da46992aa75ffee8d0e0771fcdedc8e902316daf564

Aliases

arxiv: 1405.7011 · arxiv_version: 1405.7011v1 · doi: 10.48550/arxiv.1405.7011 · pith_short_12: EKQHZOGGGZ6F · pith_short_16: EKQHZOGGGZ6FJ275 · pith_short_8: EKQHZOGG

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/EKQHZOGGGZ6FJ275HWSGTEVKOX \
  | 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: 22a07cb8c6367c54ebfd3da46992aa75ffee8d0e0771fcdedc8e902316daf564

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5ce4e5befd04d10abbe2b294eb88280006d8842b83b3f9cbb4ac94cdbf95ee1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2014-05-27T18:59:54Z",
    "title_canon_sha256": "55207180446bf13af1bb95b01a47ae88ed6e758999d1a9c41e18ed6937053866"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.7011",
    "kind": "arxiv",
    "version": 1
  }
}