Pith Number

pith:N7UO5NWJ

pith:2013:N7UO5NWJQVMH7CFCONF545QF2O

not attested not anchored not stored refs pending

Combinatorial results for certain semigroups of order-preserving full contraction mappings of a finite chain

A. D. Adeshola, A. Umar

arxiv:1303.7428 v2 · 2013-03-29 · 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{N7UO5NWJQVMH7CFCONF545QF2O}

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	2026-05-18T03:05:26.184609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fe8eeb6c985587f88a2734bde7605d3a5bd13eb3b28b8b9998f38bce74314f2

Aliases

arxiv: 1303.7428 · arxiv_version: 1303.7428v2 · doi: 10.48550/arxiv.1303.7428 · pith_short_12: N7UO5NWJQVMH · pith_short_16: N7UO5NWJQVMH7CFC · pith_short_8: N7UO5NWJ

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/N7UO5NWJQVMH7CFCONF545QF2O \
  | 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: 6fe8eeb6c985587f88a2734bde7605d3a5bd13eb3b28b8b9998f38bce74314f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc82847c3a8aae7da2df0c000ebb556b213e71d1d33e56d64a6f6f97f4f6c1f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-03-29T15:54:22Z",
    "title_canon_sha256": "55a5fa0b4c72413fec254f5c44fd898d2f16ca3bf366d418ab03c8297934ee3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.7428",
    "kind": "arxiv",
    "version": 2
  }
}