Pith Number

pith:XCWZGHPV

pith:2015:XCWZGHPVSUXOPT7YERDYADRUPW

not attested not anchored not stored refs pending

Optimal searching of gapped repeats in a word

Gregory Kucherov, Maxime Crochemore, Roman Kolpakov

arxiv:1509.01221 v3 · 2015-09-03 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XCWZGHPVSUXOPT7YERDYADRUPW}

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	2026-05-18T01:31:13.352271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8ad931df5952ee7cff82447800e347d8fbeffc8bfdc7a2e4bc8db9bfef9002d

Aliases

arxiv: 1509.01221 · arxiv_version: 1509.01221v3 · doi: 10.48550/arxiv.1509.01221 · pith_short_12: XCWZGHPVSUXO · pith_short_16: XCWZGHPVSUXOPT7Y · pith_short_8: XCWZGHPV

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/XCWZGHPVSUXOPT7YERDYADRUPW \
  | 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: b8ad931df5952ee7cff82447800e347d8fbeffc8bfdc7a2e4bc8db9bfef9002d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a5688601b812109e1ed06f2dd345959b4a16d1507f786aeb27d6b4fd66c32ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2015-09-03T19:11:14Z",
    "title_canon_sha256": "af27056038fdabd6ff3ea8b351ab5aff370cd25ae34eb1efee4700112cff7391"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01221",
    "kind": "arxiv",
    "version": 3
  }
}