Pith Number

pith:SCZIO5SC

pith:2018:SCZIO5SCJIFSB7JDZ546EI6Z6J

not attested not anchored not stored refs pending

On criteria for rook equivalence of Ferrers boards

Dan Saracino, Jonathan Bloom

arxiv:1808.04221 v1 · 2018-08-13 · 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{SCZIO5SCJIFSB7JDZ546EI6Z6J}

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	2026-05-18T00:08:18.574457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90b28776424a0b20fd23cf79e223d9f24792cea1c1e2fb91298159ce584a523d

Aliases

arxiv: 1808.04221 · arxiv_version: 1808.04221v1 · doi: 10.48550/arxiv.1808.04221 · pith_short_12: SCZIO5SCJIFS · pith_short_16: SCZIO5SCJIFSB7JD · pith_short_8: SCZIO5SC

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/SCZIO5SCJIFSB7JDZ546EI6Z6J \
  | 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: 90b28776424a0b20fd23cf79e223d9f24792cea1c1e2fb91298159ce584a523d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db45931b9935a5b84f8c16d5ffc5646dbc8e294da5698ae89e395cb5fa73b309",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-08-13T13:59:36Z",
    "title_canon_sha256": "1900fb2645a931822c402f4434be2e67561cff11ba4612561a1d38fe7382b460"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.04221",
    "kind": "arxiv",
    "version": 1
  }
}