Pith Number

pith:DDQMPMR5

pith:2015:DDQMPMR5EHFMBGMTWNZTK477FY

not attested not anchored not stored refs pending

On the limiting law of the length of the longest common and increasing subsequences in random words

Christian Houdr\'e, Jean-Christophe Breton

arxiv:1505.06164 v3 · 2015-05-22 · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDQMPMR5EHFMBGMTWNZTK477FY}

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	2026-05-18T00:07:24.024158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18e0c7b23d21cac09993b3733573ff2e2d5b6875a337378ee523b8049ee74359

Aliases

arxiv: 1505.06164 · arxiv_version: 1505.06164v3 · doi: 10.48550/arxiv.1505.06164 · pith_short_12: DDQMPMR5EHFM · pith_short_16: DDQMPMR5EHFMBGMT · pith_short_8: DDQMPMR5

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/DDQMPMR5EHFMBGMTWNZTK477FY \
  | 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: 18e0c7b23d21cac09993b3733573ff2e2d5b6875a337378ee523b8049ee74359

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67710fb6abb13a5769c69ac1b4db958661cf2aa57871030ecee6fda80830afc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2015-05-22T18:00:24Z",
    "title_canon_sha256": "20c6b499db34793a3cb27d20880745c4936ed9c0c34183a8fe14c7547a3e882c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06164",
    "kind": "arxiv",
    "version": 3
  }
}