Pith Number

pith:5QKLHWK4

pith:2013:5QKLHWK423ZDU2DFTJN67ZXVIZ

not attested not anchored not stored refs pending

Minimum Common String Partition Parameterized by Partition Size is Fixed-Parameter Tractable

Christian Komusiewicz, Laurent Bulteau

arxiv:1305.0649 v2 · 2013-05-03 · 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{5QKLHWK423ZDU2DFTJN67ZXVIZ}

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	2026-05-18T03:08:47.139652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec14b3d95cd6f23a68659a5befe6f546547a28578db845ef7390cd3f196606e0

Aliases

arxiv: 1305.0649 · arxiv_version: 1305.0649v2 · doi: 10.48550/arxiv.1305.0649 · pith_short_12: 5QKLHWK423ZD · pith_short_16: 5QKLHWK423ZDU2DF · pith_short_8: 5QKLHWK4

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/5QKLHWK423ZDU2DFTJN67ZXVIZ \
  | 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: ec14b3d95cd6f23a68659a5befe6f546547a28578db845ef7390cd3f196606e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bec0131d10ffc5bbccf40fad30d3391e1b46772b29524e1887796936a566249",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-05-03T09:26:21Z",
    "title_canon_sha256": "440809029a82efdb76976e0ab737c8e93cfdc65a7ac55cb92ee1c0a8403123c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0649",
    "kind": "arxiv",
    "version": 2
  }
}