Pith Number

pith:VDLXLPSY

pith:2016:VDLXLPSYYLDNHAMKRRAWZPFQYY

not attested not anchored not stored refs pending

A single-exponential fixed-parameter algorithm for Distance-Hereditary Vertex Deletion

Eduard Eiben, O-joung Kwon, Robert Ganian

arxiv:1604.06056 v3 · 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{VDLXLPSYYLDNHAMKRRAWZPFQYY}

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	2026-05-18T00:38:40.029278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8d775be58c2c6d3818a8c416cbcb0c60ffa885ebe7c848476a5e621da32ff76

Aliases

arxiv: 1604.06056 · arxiv_version: 1604.06056v3 · doi: 10.48550/arxiv.1604.06056 · pith_short_12: VDLXLPSYYLDN · pith_short_16: VDLXLPSYYLDNHAMK · pith_short_8: VDLXLPSY

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/VDLXLPSYYLDNHAMKRRAWZPFQYY \
  | 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: a8d775be58c2c6d3818a8c416cbcb0c60ffa885ebe7c848476a5e621da32ff76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5a70472fff8b9015c9a836ed2ec96d7bd98aac388526de6559b16b37d7e905f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-04-20T18:45:34Z",
    "title_canon_sha256": "8a630f826d41c9d75aecec7f826fe0118c01c070e4e0fa5b5e94b90e8e2e2e05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06056",
    "kind": "arxiv",
    "version": 3
  }
}