Pith Number

pith:Q3YQHM4R

pith:2014:Q3YQHM4RCIP3S6KGZVDKYFVTGS

not attested not anchored not stored refs pending

Structural parameterizations for boxicity

Felix Joos, Henning Bruhn, Morgan Chopin, Oliver Schaudt

arxiv:1402.4992 v1 · 2014-02-20 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q3YQHM4RCIP3S6KGZVDKYFVTGS}

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	2026-05-18T02:58:31.433379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86f103b391121fb97946cd46ac16b334bd4cff475a42dd5ec1e18eb4375a5495

Aliases

arxiv: 1402.4992 · arxiv_version: 1402.4992v1 · doi: 10.48550/arxiv.1402.4992 · pith_short_12: Q3YQHM4RCIP3 · pith_short_16: Q3YQHM4RCIP3S6KG · pith_short_8: Q3YQHM4R

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/Q3YQHM4RCIP3S6KGZVDKYFVTGS \
  | 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: 86f103b391121fb97946cd46ac16b334bd4cff475a42dd5ec1e18eb4375a5495

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "033fac7f782f0df19cddc837fff3f42957c27101181e7b6dd3b39a4e1867c8ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-02-20T13:18:00Z",
    "title_canon_sha256": "abb19d07705d48c8cfad548a8b47936b4815161933791f7d526815b8572d80ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.4992",
    "kind": "arxiv",
    "version": 1
  }
}