Pith Number

pith:FO66HZ34

pith:2011:FO66HZ34I275QVJ3HF2IWQ5K2X

not attested not anchored not stored refs pending

Projective Metrizability and Formal Integrability

Ioan Bucataru, Zolt\'an Muzsnay

arxiv:1105.2142 v3 · 2011-05-11 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FO66HZ34I275QVJ3HF2IWQ5K2X}

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	2026-05-18T04:06:43.520434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bbde3e77c46bfd8553b39748b43aad5d377915f3790e76e51bda8b27c1f1e27

Aliases

arxiv: 1105.2142 · arxiv_version: 1105.2142v3 · doi: 10.48550/arxiv.1105.2142 · pith_short_12: FO66HZ34I275 · pith_short_16: FO66HZ34I275QVJ3 · pith_short_8: FO66HZ34

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/FO66HZ34I275QVJ3HF2IWQ5K2X \
  | 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: 2bbde3e77c46bfd8553b39748b43aad5d377915f3790e76e51bda8b27c1f1e27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1dca60e2fec32b9f31a99e2a3ae4d7b4732a01070bb43168f62508e8ce1bb1e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-05-11T09:48:34Z",
    "title_canon_sha256": "a7fcff33ee4b0b722b5c6a10907bf2bcf566f57a47a4936d387fa03160cc35ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2142",
    "kind": "arxiv",
    "version": 3
  }
}