Pith Number

pith:NQNJ577U

pith:2012:NQNJ577UYMF6BP6DOGYCGS7W62

not attested not anchored not stored refs pending

Algorithms for discovering and proving theorems about permutation patterns

Henning Ulfarsson, Hjalti Magnusson

arxiv:1211.7110 v1 · 2012-11-29 · math.CO · cs.DM · cs.DS · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NQNJ577UYMF6BP6DOGYCGS7W62}

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	2026-05-18T03:39:41.024265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c1a9efff4c30be0bfc371b0234bf6f6870dab1e414008d3cd1168b8fdbcd1d7

Aliases

arxiv: 1211.7110 · arxiv_version: 1211.7110v1 · doi: 10.48550/arxiv.1211.7110 · pith_short_12: NQNJ577UYMF6 · pith_short_16: NQNJ577UYMF6BP6D · pith_short_8: NQNJ577U

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/NQNJ577UYMF6BP6DOGYCGS7W62 \
  | 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: 6c1a9efff4c30be0bfc371b0234bf6f6870dab1e414008d3cd1168b8fdbcd1d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "745906cf3e74abf9d69ca9ba25fef678520fed9e539e51cc577f6c91f69eaa8a",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.DS",
      "cs.MS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-11-29T22:38:57Z",
    "title_canon_sha256": "1d12aaba961d95321e2410ff223e64b85058da8397f376d957dbfea1b4c142b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.7110",
    "kind": "arxiv",
    "version": 1
  }
}