Pith Number

pith:WO2A2PF2

pith:2019:WO2A2PF2ET3GCVEQJ4LB2PW6GX

not attested not anchored not stored refs pending

An infinite family of $m$-ovoids of $Q(4,q)$

Ran Tao, Tao Feng

arxiv:1905.06085 v2 · 2019-05-15 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WO2A2PF2ET3GCVEQJ4LB2PW6GX}

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	2026-05-17T23:46:02.781306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3b40d3cba24f66154904f161d3ede35f2741c5e8b24b6143124e3ba69a18ec2

Aliases

arxiv: 1905.06085 · arxiv_version: 1905.06085v2 · doi: 10.48550/arxiv.1905.06085 · pith_short_12: WO2A2PF2ET3G · pith_short_16: WO2A2PF2ET3GCVEQ · pith_short_8: WO2A2PF2

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/WO2A2PF2ET3GCVEQJ4LB2PW6GX \
  | 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: b3b40d3cba24f66154904f161d3ede35f2741c5e8b24b6143124e3ba69a18ec2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0151e2416aec18ee164b5ef5c647e0b97653f356dd57c2185cd749002f1cf6d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-05-15T10:59:03Z",
    "title_canon_sha256": "9a091f90697370d9108eb504715a576b993ed4b91395cdbf2d8bdda7d04b2c8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.06085",
    "kind": "arxiv",
    "version": 2
  }
}