Pith Number

pith:QXIDBM5S

pith:2013:QXIDBM5S3J2MALSHUWRU3TIJMC

not attested not anchored not stored refs pending

Efficient algorithms for the longest common subsequence in $k$-length substrings

Sebastian Deorowicz, Szymon Grabowski

arxiv:1311.4552 v1 · 2013-11-18 · 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{QXIDBM5S3J2MALSHUWRU3TIJMC}

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	2026-05-18T03:06:43.989407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85d030b3b2da74c02e47a5a34dcd09608968fa9c7ebd8bd4c3a019dfc1980c89

Aliases

arxiv: 1311.4552 · arxiv_version: 1311.4552v1 · doi: 10.48550/arxiv.1311.4552 · pith_short_12: QXIDBM5S3J2M · pith_short_16: QXIDBM5S3J2MALSH · pith_short_8: QXIDBM5S

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/QXIDBM5S3J2MALSHUWRU3TIJMC \
  | 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: 85d030b3b2da74c02e47a5a34dcd09608968fa9c7ebd8bd4c3a019dfc1980c89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91d335bb3620fdde8c2fbd716d77061b0723ec1d7db3387f0d5f603e9819a69c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-11-18T21:02:38Z",
    "title_canon_sha256": "c00bff187f8d740b9711f51872c676f6faf91eb00a9d41e7c524caad9056d662"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4552",
    "kind": "arxiv",
    "version": 1
  }
}