Pith Number

pith:UEG7OKJ7

pith:2012:UEG7OKJ772GPGM335X2KNQS76Y

not attested not anchored not stored refs pending

Sparse long blocks and the variance of the longest common subsequences in random words

C. Houdr\'e, H. Matzinger, S. Amsalu

arxiv:1204.1009 v2 · 2012-04-04 · math.PR · math-ph · math.CO · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UEG7OKJ772GPGM335X2KNQS76Y}

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	2026-05-18T01:04:04.404692Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a10df7293ffe8cf3337bedf4a6c25ff60ce734330b11a35b47777fee58c5c15b

Aliases

arxiv: 1204.1009 · arxiv_version: 1204.1009v2 · doi: 10.48550/arxiv.1204.1009 · pith_short_12: UEG7OKJ772GP · pith_short_16: UEG7OKJ772GPGM33 · pith_short_8: UEG7OKJ7

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/UEG7OKJ772GPGM335X2KNQS76Y \
  | 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: a10df7293ffe8cf3337bedf4a6c25ff60ce734330b11a35b47777fee58c5c15b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a627a9c3ba70840d9f5009cf86fc9afe2d3fab24bf730064fc2c92345ba6d4a9",
    "cross_cats_sorted": [
      "math-ph",
      "math.CO",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2012-04-04T17:30:01Z",
    "title_canon_sha256": "a917cb34a373dba8f2b67eed2412cb5291ecea7c617f65a4a5847f0f527fc6f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1009",
    "kind": "arxiv",
    "version": 2
  }
}