Pith Number

pith:L2QF2T35

pith:2012:L2QF2T357FCOJNTCILERDMFFH4

not attested not anchored not stored refs pending

The zero locus of the infinitesimal invariant

Christian Schnell, Greg Pearlstein

arxiv:1207.6918 v1 · 2012-07-30 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L2QF2T357FCOJNTCILERDMFFH4}

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	2026-05-18T03:49:48.254221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ea05d4f7df944e4b66242c911b0a53f32f8e0207f626b93225b10b54147f199

Aliases

arxiv: 1207.6918 · arxiv_version: 1207.6918v1 · doi: 10.48550/arxiv.1207.6918 · pith_short_12: L2QF2T357FCO · pith_short_16: L2QF2T357FCOJNTC · pith_short_8: L2QF2T35

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/L2QF2T357FCOJNTCILERDMFFH4 \
  | 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: 5ea05d4f7df944e4b66242c911b0a53f32f8e0207f626b93225b10b54147f199

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60f00896020eb6311a2a1d9ef359163c96c56a28cd9134b4ab5d759aa1f2b41d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-07-30T12:42:13Z",
    "title_canon_sha256": "ce747f26b2b1d9a7657262489072bfb0703caf218af423b621de267999daeeef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.6918",
    "kind": "arxiv",
    "version": 1
  }
}