Pith Number

pith:OXEZMP63

pith:2018:OXEZMP63ZTGCWPFRFIXE5JSX7L

not attested not anchored not stored refs pending

A Generalization of von Staudt's Theorem on Cross-Ratios

Itay Kaplan, Yatir Halevi

arxiv:1803.08520 v2 · 2018-03-22 · math.AG · math.GR · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OXEZMP63ZTGCWPFRFIXE5JSX7L}

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	2026-05-18T00:09:35.856179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75c9963fdbcccc2b3cb12a2e4ea657fae97a8b715d1707c6a397e41d0ba7e709

Aliases

arxiv: 1803.08520 · arxiv_version: 1803.08520v2 · doi: 10.48550/arxiv.1803.08520 · pith_short_12: OXEZMP63ZTGC · pith_short_16: OXEZMP63ZTGCWPFR · pith_short_8: OXEZMP63

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/OXEZMP63ZTGCWPFRFIXE5JSX7L \
  | 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: 75c9963fdbcccc2b3cb12a2e4ea657fae97a8b715d1707c6a397e41d0ba7e709

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b511407cd870624282eb95af3f402004d9c3c893b17e890cf63510ad0f72873",
    "cross_cats_sorted": [
      "math.GR",
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-03-22T18:01:27Z",
    "title_canon_sha256": "6fc0199c1029f71480d933ca65a9d5fb961c0c89d7169ef29e08a930e3332ae8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08520",
    "kind": "arxiv",
    "version": 2
  }
}