Pith Number

pith:NTHGHSVT

pith:2010:NTHGHSVTUNYHOQFGSWM5O3PJYV

not attested not anchored not stored refs pending

A Quartic Kernel for Pathwidth-One Vertex Deletion

Geevarghese Philip, Venkatesh Raman, Yngve Villanger

arxiv:1009.0806 v1 · 2010-09-04 · 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{NTHGHSVTUNYHOQFGSWM5O3PJYV}

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	2026-05-18T04:41:24.569374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cce63cab3a3707740a69599d76de9c54cb70b250771c276936d4234c55ecc87

Aliases

arxiv: 1009.0806 · arxiv_version: 1009.0806v1 · doi: 10.48550/arxiv.1009.0806 · pith_short_12: NTHGHSVTUNYH · pith_short_16: NTHGHSVTUNYHOQFG · pith_short_8: NTHGHSVT

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/NTHGHSVTUNYHOQFGSWM5O3PJYV \
  | 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: 6cce63cab3a3707740a69599d76de9c54cb70b250771c276936d4234c55ecc87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e7f2b6cf08eed9725d93054b61cb2564359f536889b0e137ca3f7252d34007c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2010-09-04T05:39:41Z",
    "title_canon_sha256": "c3abc47ad0a15451d25874c25c850a1723133fbffbd7251252c43e36666c0948"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.0806",
    "kind": "arxiv",
    "version": 1
  }
}