Pith Number

pith:EG4U5TMA

pith:2011:EG4U5TMAHIO3KN553M5AQOCQ5S

not attested not anchored not stored refs pending

Quadratic-time Algorithm for the String Constrained LCS Problem

Sebastian Deorowicz

arxiv:1106.6342 v1 · 2011-06-30 · 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{EG4U5TMAHIO3KN553M5AQOCQ5S}

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	2026-05-18T04:19:03.485162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21b94ecd803a1db537bddb3a083850ec8a567d598dbe728e71c43bed4fbc57ec

Aliases

arxiv: 1106.6342 · arxiv_version: 1106.6342v1 · doi: 10.48550/arxiv.1106.6342 · pith_short_12: EG4U5TMAHIO3 · pith_short_16: EG4U5TMAHIO3KN55 · pith_short_8: EG4U5TMA

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/EG4U5TMAHIO3KN553M5AQOCQ5S \
  | 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: 21b94ecd803a1db537bddb3a083850ec8a567d598dbe728e71c43bed4fbc57ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b078c3be8538398c4db1ee72d80097cb6dc1ad343128eb2025445761bc594f1f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-06-30T19:04:18Z",
    "title_canon_sha256": "5ae64295b19c9e3fef78f62aa75781229c931ced15aee04baa64a7b0876b42df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.6342",
    "kind": "arxiv",
    "version": 1
  }
}