Pith Number

pith:Z5BZJDYS

pith:2018:Z5BZJDYSJBVSMDJBRYWLPDXSVS

not attested not anchored not stored refs pending

The $r$-derangement numbers

Chenying Wang, Istv\'an Mez\H{o}, Piotr Miska

arxiv:1803.04529 v1 · 2018-03-12 · math.NT · 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{Z5BZJDYSJBVSMDJBRYWLPDXSVS}

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	2026-05-18T00:21:18.807160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf43948f12486b260d218e2cb78ef2ac9f2584e520349ae7c0cc00204ebcfd7e

Aliases

arxiv: 1803.04529 · arxiv_version: 1803.04529v1 · doi: 10.48550/arxiv.1803.04529 · pith_short_12: Z5BZJDYSJBVS · pith_short_16: Z5BZJDYSJBVSMDJB · pith_short_8: Z5BZJDYS

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/Z5BZJDYSJBVSMDJBRYWLPDXSVS \
  | 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: cf43948f12486b260d218e2cb78ef2ac9f2584e520349ae7c0cc00204ebcfd7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9a768c8028c07a1eb2e507246156371f8196270898c3279a1479eb81a503274",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2018-03-12T20:59:07Z",
    "title_canon_sha256": "690309992241754cf6d6f9cc6a43b5c3503cd71b4e14ae871d9b72540e0e486a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04529",
    "kind": "arxiv",
    "version": 1
  }
}