Pith Number

pith:2WZ7TJLG

pith:2013:2WZ7TJLGVTH63MARCIJUN5NGNL

not attested not anchored not stored refs pending

Desargues maps and their reductions

Adam Doliwa

arxiv:1307.8294 v2 · 2013-07-31 · nlin.SI · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2WZ7TJLGVTH63MARCIJUN5NGNL}

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	2026-05-18T02:58:45.949045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5b3f9a566accfedb011121346f5a66ac97a90ef96801fb11386ab216542a4ec

Aliases

arxiv: 1307.8294 · arxiv_version: 1307.8294v2 · doi: 10.48550/arxiv.1307.8294 · pith_short_12: 2WZ7TJLGVTH6 · pith_short_16: 2WZ7TJLGVTH63MAR · pith_short_8: 2WZ7TJLG

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/2WZ7TJLGVTH63MARCIJUN5NGNL \
  | 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: d5b3f9a566accfedb011121346f5a66ac97a90ef96801fb11386ab216542a4ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e60b55002fc411fd10f23ca0c19c2c1170c8f9e3040fc276c3934e7137da6cfc",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2013-07-31T11:50:18Z",
    "title_canon_sha256": "1933dc705e5471fe665567ab60cdb911766f76dea58383a5f151a70609866ed9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.8294",
    "kind": "arxiv",
    "version": 2
  }
}