Pith Number

pith:R2WYKVKD

pith:2013:R2WYKVKD2ZO352SZCFSWMBOBG5

not attested not anchored not stored refs pending

A generalization of the extremal function of the Davenport-Schinzel sequences

Cheng Yeaw Ku, Kok Bin Wong

arxiv:1311.1594 v1 · 2013-11-07 · 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{R2WYKVKD2ZO352SZCFSWMBOBG5}

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	2026-05-18T03:07:43.800042Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ead855543d65dbeea5911656605c1375a4c5b5fc8726596bba936ae21861b45

Aliases

arxiv: 1311.1594 · arxiv_version: 1311.1594v1 · doi: 10.48550/arxiv.1311.1594 · pith_short_12: R2WYKVKD2ZO3 · pith_short_16: R2WYKVKD2ZO352SZ · pith_short_8: R2WYKVKD

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/R2WYKVKD2ZO352SZCFSWMBOBG5 \
  | 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: 8ead855543d65dbeea5911656605c1375a4c5b5fc8726596bba936ae21861b45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "782a24e850b1957992a4efbc1f6a68aa5e01d82bbd27b4478ab94aa9166d6fb5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-11-07T08:07:47Z",
    "title_canon_sha256": "95606e39c7274d83a7a7eb7f5bd155ef94a48227ace292afd0791fcf489c9788"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1594",
    "kind": "arxiv",
    "version": 1
  }
}