Pith Number

pith:23BVPFAD

pith:2026:23BVPFADUQZM4YPPZHNPUCKYM3

not attested not anchored not stored refs pending

A C implementation of the Smith massager algorithm

Arne Storjohann, George Labahn, Stavros Birmpilis, Ziwen Wang

arxiv:2605.19254 v1 · 2026-05-19 · cs.MS · math.AC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{23BVPFADUQZM4YPPZHNPUCKYM3}

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	2026-05-20T01:05:36.205413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6c3579403a432ce61efc9dafa095866e3f7228c6dcaff0f32ef0d3d470ffd2f

Aliases

arxiv: 2605.19254 · arxiv_version: 2605.19254v1 · doi: 10.48550/arxiv.2605.19254 · pith_short_12: 23BVPFADUQZM · pith_short_16: 23BVPFADUQZM4YPP · pith_short_8: 23BVPFAD

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/23BVPFADUQZM4YPPZHNPUCKYM3 \
  | 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: d6c3579403a432ce61efc9dafa095866e3f7228c6dcaff0f32ef0d3d470ffd2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d4ff543b94d8d68e4d3627bf14d87a2e047c15c7ca925469ef49d97f9149460",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2026-05-19T01:58:00Z",
    "title_canon_sha256": "403248bc3304bab9d9d820bc2177a03100a11dbfb4bc8c80bfc808c2053ea6f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19254",
    "kind": "arxiv",
    "version": 1
  }
}