Pith Number

pith:7XWPEOE2

pith:2015:7XWPEOE2HYZ2NVI5SG6X4WJAK4

not attested not anchored not stored refs pending

An ${\cal O}(m\log n)$ algorithm for the weighted stable set problem in claw-free graphs with $\alpha({G}) \le 3$

Antonio Sassano, Paolo Nobili

arxiv:1501.05773 v1 · 2015-01-23 · 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{7XWPEOE2HYZ2NVI5SG6X4WJAK4}

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	2026-05-18T02:28:49.034160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdecf2389a3e33a6d51d91bd7e5920571322ead2ea704d8483b772f8db1832dd

Aliases

arxiv: 1501.05773 · arxiv_version: 1501.05773v1 · doi: 10.48550/arxiv.1501.05773 · pith_short_12: 7XWPEOE2HYZ2 · pith_short_16: 7XWPEOE2HYZ2NVI5 · pith_short_8: 7XWPEOE2

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/7XWPEOE2HYZ2NVI5SG6X4WJAK4 \
  | 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: fdecf2389a3e33a6d51d91bd7e5920571322ead2ea704d8483b772f8db1832dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "daa9347f96b605101abf44f748b7b1def5bd8b6d98035bab5922ee93d0e0ed88",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-01-23T11:33:07Z",
    "title_canon_sha256": "68e559d8a18c556b6397eb16a4f9a06ef192ecc31e665e8dab0d44ea1a9fa0cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.05773",
    "kind": "arxiv",
    "version": 1
  }
}