Pith Number

pith:UXLQP3H3

pith:2015:UXLQP3H3JDNNUUA2NLR7RRXYOH

not attested not anchored not stored refs pending

A family of $m$-ovoids of parabolic quadrics

Koji Momihara, Qing Xiang, Tao Feng

arxiv:1509.00550 v2 · 2015-09-02 · 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{UXLQP3H3JDNNUUA2NLR7RRXYOH}

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	2026-05-18T01:24:32.757434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5d707ecfb48dada501a6ae3f8c6f871f2dd4e81ca37914ca9ac240868b8666f

Aliases

arxiv: 1509.00550 · arxiv_version: 1509.00550v2 · doi: 10.48550/arxiv.1509.00550 · pith_short_12: UXLQP3H3JDNN · pith_short_16: UXLQP3H3JDNNUUA2 · pith_short_8: UXLQP3H3

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/UXLQP3H3JDNNUUA2NLR7RRXYOH \
  | 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: a5d707ecfb48dada501a6ae3f8c6f871f2dd4e81ca37914ca9ac240868b8666f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2391a7cf7f974c7c1c9fb5a457a2bebd125dc2a9d2a3d8e302688f05acc11d55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-09-02T02:59:53Z",
    "title_canon_sha256": "a629cfa3a03fb8f504a9e0bde842d6d25100f00fe8eff74ef8f437b34f982e45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00550",
    "kind": "arxiv",
    "version": 2
  }
}