Pith Number

pith:EMY6CSC4

pith:2013:EMY6CSC4QEVSYU3YFURFPUHIBD

not attested not anchored not stored refs pending

Small maximal partial ovoids in generalized quadrangles

Jacques Verstraete, Jeroen Schillewaert

arxiv:1308.1899 v1 · 2013-08-08 · math.MG · math.CO · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EMY6CSC4QEVSYU3YFURFPUHIBD}

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	2026-05-18T03:16:27.443220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2331e1485c812b2c53782d2257d0e808c5f00e60f2cbf5124626fb144b84d0a5

Aliases

arxiv: 1308.1899 · arxiv_version: 1308.1899v1 · doi: 10.48550/arxiv.1308.1899 · pith_short_12: EMY6CSC4QEVS · pith_short_16: EMY6CSC4QEVSYU3Y · pith_short_8: EMY6CSC4

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/EMY6CSC4QEVSYU3YFURFPUHIBD \
  | 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: 2331e1485c812b2c53782d2257d0e808c5f00e60f2cbf5124626fb144b84d0a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "353d2fa9cbad44fb2674ad3d81746859aa5edd9f8dcf33df3b35af0266b24ffe",
    "cross_cats_sorted": [
      "math.CO",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2013-08-08T16:29:51Z",
    "title_canon_sha256": "84481077c8fa4f5920ee4fdc77c06129e63504734d0824194fde55fff5e35582"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.1899",
    "kind": "arxiv",
    "version": 1
  }
}