Pith Number

pith:SAO5ZL3W

pith:2015:SAO5ZL3W3OCXYR6WY4SAUUW67M

not attested not anchored not stored refs pending

An FPT algorithm and a polynomial kernel for Linear Rankwidth-1 Vertex Deletion

Christophe Paul, Eun Jung Kim, Mamadou Moustapha Kant\'e, O-joung Kwon

arxiv:1504.05905 v2 · 2015-04-22 · 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{SAO5ZL3W3OCXYR6WY4SAUUW67M}

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	2026-05-18T01:23:04.118630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

901ddcaf76db857c47d6c7240a52defb26720af3962706c4b9e40155d15ed5c7

Aliases

arxiv: 1504.05905 · arxiv_version: 1504.05905v2 · doi: 10.48550/arxiv.1504.05905 · pith_short_12: SAO5ZL3W3OCX · pith_short_16: SAO5ZL3W3OCXYR6W · pith_short_8: SAO5ZL3W

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/SAO5ZL3W3OCXYR6WY4SAUUW67M \
  | 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: 901ddcaf76db857c47d6c7240a52defb26720af3962706c4b9e40155d15ed5c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6047ca0a6c91e0ce7b6be959a19cc4ed172d57331c5655061861858cea5b0433",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-04-22T17:59:22Z",
    "title_canon_sha256": "b87933e2f22ce0e0814076d9cb6374025b734839192bb4ecd944af34eef25d89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05905",
    "kind": "arxiv",
    "version": 2
  }
}