Pith Number

pith:D6XHHQWD

pith:2013:D6XHHQWD5IFUXJCPRV3ETBGIL2

not attested not anchored not stored refs pending

Parameterized algorithm for weighted independent set problem in bull-free graphs

Kristina Vuskovi\'c, Nicolas Trotignon, St\'ephan Thomass\'e

arxiv:1310.6205 v2 · 2013-10-23 · 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{D6XHHQWD5IFUXJCPRV3ETBGIL2}

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	2026-05-18T01:26:32.070449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1fae73c2c3ea0b4ba44f8d764984c85eb9ed848cb99bf959714b37bcf6bd1437

Aliases

arxiv: 1310.6205 · arxiv_version: 1310.6205v2 · doi: 10.48550/arxiv.1310.6205 · pith_short_12: D6XHHQWD5IFU · pith_short_16: D6XHHQWD5IFUXJCP · pith_short_8: D6XHHQWD

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/D6XHHQWD5IFUXJCPRV3ETBGIL2 \
  | 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: 1fae73c2c3ea0b4ba44f8d764984c85eb9ed848cb99bf959714b37bcf6bd1437

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81ef2bbd4993db39906d3946fcc331df8ea6f2abea5c09439ed89afb6d967c5c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2013-10-23T12:36:51Z",
    "title_canon_sha256": "02d127e53b74d36b55856849aded5429b6defe82cac6e87942ef9f2f3e887c24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6205",
    "kind": "arxiv",
    "version": 2
  }
}