Pith Number

pith:7N5R5OVU

pith:2014:7N5R5OVUSM56GPRXQXYIGXRNS5

not attested not anchored not stored refs pending

An Erd{\H o}s-Ko-Rado theorem for permutations with fixed number of cycles

Cheng Yeaw Ku, Kok Bin Wong

arxiv:1402.0668 v1 · 2014-02-04 · 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{7N5R5OVUSM56GPRXQXYIGXRNS5}

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	2026-05-18T03:00:13.353100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb7b1ebab4933be33e3785f0835e2d975d99a42d67f611ce6cee5e5aa46e59dc

Aliases

arxiv: 1402.0668 · arxiv_version: 1402.0668v1 · doi: 10.48550/arxiv.1402.0668 · pith_short_12: 7N5R5OVUSM56 · pith_short_16: 7N5R5OVUSM56GPRX · pith_short_8: 7N5R5OVU

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/7N5R5OVUSM56GPRXQXYIGXRNS5 \
  | 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: fb7b1ebab4933be33e3785f0835e2d975d99a42d67f611ce6cee5e5aa46e59dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ac3bd3545a9999f89340692c11a650c32fd9e4fdf5a8496844c3c646ba1a9f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-02-04T09:26:47Z",
    "title_canon_sha256": "72400d4ad4464fcd720fca10cb5442fbf97a7fe20053c4ccb037344e43e95109"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.0668",
    "kind": "arxiv",
    "version": 1
  }
}