Pith Number

pith:I4Y6G5F7

pith:2020:I4Y6G5F75ATUX4QP4NB6EZ3HSB

not attested not anchored not stored refs pending

Subexponential parameterized algorithms and kernelization on almost chordal graphs

Fedor V. Fomin, Petr A. Golovach

arxiv:2002.08226 v2 · 2020-02-19 · cs.DS · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I4Y6G5F75ATUX4QP4NB6EZ3HSB}

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	2026-07-05T01:11:45.379564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4731e374bfe8274bf20fe343e267679043ace43a9b24444223888f3fd2f8e77e

Aliases

arxiv: 2002.08226 · arxiv_version: 2002.08226v2 · doi: 10.48550/arxiv.2002.08226 · pith_short_12: I4Y6G5F75ATU · pith_short_16: I4Y6G5F75ATUX4QP · pith_short_8: I4Y6G5F7

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/I4Y6G5F75ATUX4QP4NB6EZ3HSB \
  | 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: 4731e374bfe8274bf20fe343e267679043ace43a9b24444223888f3fd2f8e77e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e23e6ebddc082b18cb03f17dd244674b1d235e3c6b4558ce4fdc69e46383dbcc",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2020-02-19T15:08:09Z",
    "title_canon_sha256": "3101857d885d75848e0d0eaf2f96251cc77cb6ce4e441352cc990320ea436e71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.08226",
    "kind": "arxiv",
    "version": 2
  }
}