Pith Number

pith:SGXIC234

pith:2007:SGXIC234R3LBHSDVPFNVFKAMOA

not attested not anchored not stored refs pending

Congruences of lines in $\mathbb{P}^5$, quadratic normality, and completely exceptional Monge-Amp\`ere equations

Emilia Mezzetti, Pietro De Poi

arxiv:0710.5110 v1 · 2007-10-26 · 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{SGXIC234R3LBHSDVPFNVFKAMOA}

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	2026-05-18T02:49:54.396385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91ae816b7c8ed613c875795b52a80c700a1396f8d903d60a09d76b5407529d42

Aliases

arxiv: 0710.5110 · arxiv_version: 0710.5110v1 · doi: 10.48550/arxiv.0710.5110 · pith_short_12: SGXIC234R3LB · pith_short_16: SGXIC234R3LBHSDV · pith_short_8: SGXIC234

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/SGXIC234R3LBHSDVPFNVFKAMOA \
  | 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: 91ae816b7c8ed613c875795b52a80c700a1396f8d903d60a09d76b5407529d42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d33e09d279813a61934beba6d2ca03c77c6207fd4dcd376a4a4ff653c35b5d81",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2007-10-26T14:56:42Z",
    "title_canon_sha256": "14834b50457a6a7a3d3cc6e1a28db4d3fc9ef28da188c001a31f2ceed4d5bce5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0710.5110",
    "kind": "arxiv",
    "version": 1
  }
}