Pith Number

pith:AJC7M7HS

pith:2018:AJC7M7HSWDNG3JA5ZGX4KKPW7V

not attested not anchored not stored refs pending

Maximum Weight Independent Sets for ($S_{1,2,4}$,Triangle)-Free Graphs in Polynomial Time

Andreas Brandst\"adt, Raffaele Mosca

arxiv:1806.09472 v2 · 2018-06-22 · 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{AJC7M7HSWDNG3JA5ZGX4KKPW7V}

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	2026-05-17T23:56:33.782700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0245f67cf2b0da6da41dc9afc529f6fd49fb7dea12a87ebc9f0d8d64d6d8e561

Aliases

arxiv: 1806.09472 · arxiv_version: 1806.09472v2 · doi: 10.48550/arxiv.1806.09472 · pith_short_12: AJC7M7HSWDNG · pith_short_16: AJC7M7HSWDNG3JA5 · pith_short_8: AJC7M7HS

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/AJC7M7HSWDNG3JA5ZGX4KKPW7V \
  | 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: 0245f67cf2b0da6da41dc9afc529f6fd49fb7dea12a87ebc9f0d8d64d6d8e561

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b57e045ad2b3fd438e30ee1dd98f1d14270a88df79358c61edeb9f7a8c8e83a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-06-22T13:57:55Z",
    "title_canon_sha256": "234c8701a8de805ae6b16397f1c5b796bafdc2a3ff6a50d9eb4c5cf8af5a45b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.09472",
    "kind": "arxiv",
    "version": 2
  }
}