Pith Number

pith:DMLVCINO

pith:2018:DMLVCINODFVVD7YL2ZYW6CBGPN

not attested not anchored not stored refs pending

Counting Words Avoiding a Short Increasing Pattern and the Pattern 1k...2

Yonah Biers-Ariel

arxiv:1811.08314 v2 · 2018-11-20 · 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{DMLVCINODFVVD7YL2ZYW6CBGPN}

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	2026-05-17T23:55:28.663853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b175121ae196b51ff0bd6716f08267b53fd8f5cd98e5342372c09718b2a0e61

Aliases

arxiv: 1811.08314 · arxiv_version: 1811.08314v2 · doi: 10.48550/arxiv.1811.08314 · pith_short_12: DMLVCINODFVV · pith_short_16: DMLVCINODFVVD7YL · pith_short_8: DMLVCINO

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/DMLVCINODFVVD7YL2ZYW6CBGPN \
  | 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: 1b175121ae196b51ff0bd6716f08267b53fd8f5cd98e5342372c09718b2a0e61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b32d8ce73706f6386a755afdcdb3fc1f85d83c8195595d550eb095b9ffce2e52",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-11-20T15:33:32Z",
    "title_canon_sha256": "13deb8da5bce38f2ce5c4b70a9ffa981e8008eb86b21ff9bc55dbbab4984a07b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.08314",
    "kind": "arxiv",
    "version": 2
  }
}