Pith Number

pith:H34QX2YJ

pith:2014:H34QX2YJLQHEB75BWWCI4PJ5SP

not attested not anchored not stored refs pending

A subexponential parameterized algorithm for Proper Interval Completion

Fedor V. Fomin, Ivan Bliznets, Marcin Pilipczuk, Micha{\l} Pilipczuk

arxiv:1402.3472 v1 · 2014-02-13 · 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{H34QX2YJLQHEB75BWWCI4PJ5SP}

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	2026-05-18T02:58:58.678345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ef90beb095c0e40ffa1b5848e3d3d93f3af00218799e5c328bb0c337bcfb9f4

Aliases

arxiv: 1402.3472 · arxiv_version: 1402.3472v1 · doi: 10.48550/arxiv.1402.3472 · pith_short_12: H34QX2YJLQHE · pith_short_16: H34QX2YJLQHEB75B · pith_short_8: H34QX2YJ

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/H34QX2YJLQHEB75BWWCI4PJ5SP \
  | 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: 3ef90beb095c0e40ffa1b5848e3d3d93f3af00218799e5c328bb0c337bcfb9f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55bb22ff52ab88675ba23a43e7855a252e237059b123102a96f92a3e31bded37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-02-13T20:03:41Z",
    "title_canon_sha256": "f71c8a2f3c37b6137e1eb3a77659fc28daa807ce549c14185572c379929ff52b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.3472",
    "kind": "arxiv",
    "version": 1
  }
}