Pith Number

pith:5K4MXWKD

pith:2013:5K4MXWKDNQCEAXNMU6YMYZYK6H

not attested not anchored not stored refs pending

Two Vignettes On Full Rook Placements

Jonathan Bloom, Vince Vatter

arxiv:1310.6073 v1 · 2013-10-22 · 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{5K4MXWKDNQCEAXNMU6YMYZYK6H}

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	2026-05-18T03:09:21.515572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eab8cbd9436c04405daca7b0cc670af1e9c698df7cd63d1ebe38c3249560dd1a

Aliases

arxiv: 1310.6073 · arxiv_version: 1310.6073v1 · doi: 10.48550/arxiv.1310.6073 · pith_short_12: 5K4MXWKDNQCE · pith_short_16: 5K4MXWKDNQCEAXNM · pith_short_8: 5K4MXWKD

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/5K4MXWKDNQCEAXNMU6YMYZYK6H \
  | 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: eab8cbd9436c04405daca7b0cc670af1e9c698df7cd63d1ebe38c3249560dd1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ee73896836238d3caf5eddf77813f3ffc91a332c2ab94ac83352b5e0e171003",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-10-22T22:40:10Z",
    "title_canon_sha256": "08c74a070e502cb85a8f6801b4eb9a223d09e10a689bc8ec3e1dd004c02e9be9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6073",
    "kind": "arxiv",
    "version": 1
  }
}