Pith Number

pith:5AV6MXNS

pith:2025:5AV6MXNSJD7OTQ253VURCH5J3W

not attested not anchored not stored refs pending

Expected Length of the Longest Common Subsequence of Multiple Strings

Ray Li, William Ren, Yiran Wen

arxiv:2504.10425 v1 · 2025-04-14 · math.CO · cs.DM · 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{5AV6MXNSJD7OTQ253VURCH5J3W}

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	2026-07-05T10:49:00.135320Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e82be65db248fee9c35ddd69111fa9dda13e28ef171fb80abddf094e053f620e

Aliases

arxiv: 2504.10425 · arxiv_version: 2504.10425v1 · doi: 10.48550/arxiv.2504.10425 · pith_short_12: 5AV6MXNSJD7O · pith_short_16: 5AV6MXNSJD7OTQ25 · pith_short_8: 5AV6MXNS

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/5AV6MXNSJD7OTQ253VURCH5J3W \
  | 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: e82be65db248fee9c35ddd69111fa9dda13e28ef171fb80abddf094e053f620e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd919e4a3662710aa1357f3616724c069c2fa5abd9bb66b459c101d8cf22c83e",
    "cross_cats_sorted": [
      "cs.DM",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-04-14T17:15:51Z",
    "title_canon_sha256": "218485b590c267bbbed1ded26638e22d350eb5b26670b3f1524f7ca353b5ad98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.10425",
    "kind": "arxiv",
    "version": 1
  }
}