Pith Number

pith:L7QYNREV

pith:2016:L7QYNREVQHCML2HVAHQNZPTPGX

not attested not anchored not stored refs pending

Two-log-convexity of the Catalan-Larcombe-French sequence

Baoyindureng Wu, Brian Yi Sun

arxiv:1602.04909 v1 · 2016-02-16 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L7QYNREVQHCML2HVAHQNZPTPGX}

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	2026-05-18T01:20:37.883827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fe186c49581c4c5e8f501e0dcbe6f35c59d426a1906bfb981cece8a7fc73c1d

Aliases

arxiv: 1602.04909 · arxiv_version: 1602.04909v1 · doi: 10.48550/arxiv.1602.04909 · pith_short_12: L7QYNREVQHCM · pith_short_16: L7QYNREVQHCML2HV · pith_short_8: L7QYNREV

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/L7QYNREVQHCML2HVAHQNZPTPGX \
  | 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: 5fe186c49581c4c5e8f501e0dcbe6f35c59d426a1906bfb981cece8a7fc73c1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4675d6a0f23a5d11eeb7c408ce45ca22a6b1cab7b6bcf6c3e4659487ea0f85e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-02-16T05:00:04Z",
    "title_canon_sha256": "637c7c285ecdff42aed165c4a9be05208aefa1ebc93b8f818a0fb65ceaa8aa32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.04909",
    "kind": "arxiv",
    "version": 1
  }
}