Pith Number

pith:JZME2AWH

pith:2016:JZME2AWHSANCRQ2WVRB2LEVYAH

not attested not anchored not stored refs pending

Subexponential parameterized algorithms for planar and apex-minor-free graphs via low treewidth pattern covering

Daniel Lokshtanov, D\'aniel Marx, Fedor V. Fomin, Marcin Pilipczuk, Micha{\l} Pilipczuk, Saket Saurabh

arxiv:1604.05999 v1 · 2016-04-20 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JZME2AWHSANCRQ2WVRB2LEVYAH}

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	2026-05-18T01:16:33.973561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e584d02c7901a28c356ac43a592b801e3b99d036128342087b9b31c0e4844ae

Aliases

arxiv: 1604.05999 · arxiv_version: 1604.05999v1 · doi: 10.48550/arxiv.1604.05999 · pith_short_12: JZME2AWHSANC · pith_short_16: JZME2AWHSANCRQ2W · pith_short_8: JZME2AWH

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/JZME2AWHSANCRQ2WVRB2LEVYAH \
  | 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: 4e584d02c7901a28c356ac43a592b801e3b99d036128342087b9b31c0e4844ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b16c3d4375c061d5d1f3e3861aef2e8f97529b1a4b8e0d5fc5afba6a57140c19",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-04-20T15:19:33Z",
    "title_canon_sha256": "3ad6dc5609c54d84e4fafdcaecea66354576f843a68ccae1b4fc271060196156"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.05999",
    "kind": "arxiv",
    "version": 1
  }
}