Pith Number

pith:DDM4XMXI

pith:2011:DDM4XMXIFQH3BKFVLLD2CTNJAA

not attested not anchored not stored refs pending

Pattern 1^j0^i avoiding binary words

Elisa Pergola (University of Florence), Renzo Pinzani (University of Florence), Stefano Bilotta (University of Florence)

arxiv:1108.3621 v1 · 2011-08-18 · cs.FL · cs.DM · 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{DDM4XMXIFQH3BKFVLLD2CTNJAA}

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	2026-05-18T04:15:15.731959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18d9cbb2e82c0fb0a8b55ac7a14da900205128488b64ec7649a529d7bd5828b3

Aliases

arxiv: 1108.3621 · arxiv_version: 1108.3621v1 · doi: 10.48550/arxiv.1108.3621 · pith_short_12: DDM4XMXIFQH3 · pith_short_16: DDM4XMXIFQH3BKFV · pith_short_8: DDM4XMXI

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/DDM4XMXIFQH3BKFVLLD2CTNJAA \
  | 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: 18d9cbb2e82c0fb0a8b55ac7a14da900205128488b64ec7649a529d7bd5828b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "299e60fafef976ec03bdcf7de202cad6c69ad5063519c4ee751111e16630563f",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2011-08-18T03:52:39Z",
    "title_canon_sha256": "c4d7b8a2290a233f26601e9dc79bbbfb134c77b7341b5e2847fe23f15a379467"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3621",
    "kind": "arxiv",
    "version": 1
  }
}