Pith Number

pith:O2DZWVXC

pith:2015:O2DZWVXCKHGVJMFR2QGB4XCSN3

not attested not anchored not stored refs pending

A note on relative hemisystems of Hermitian generalised quadrangles

Eric Swartz, John Bamberg, Melissa Lee

arxiv:1504.03435 v2 · 2015-04-14 · 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{O2DZWVXCKHGVJMFR2QGB4XCSN3}

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	2026-05-18T01:32:00.645302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76879b56e251cd54b0b1d40c1e5c526ec1dedf9104a28e508479b5bc6a69d8c3

Aliases

arxiv: 1504.03435 · arxiv_version: 1504.03435v2 · doi: 10.48550/arxiv.1504.03435 · pith_short_12: O2DZWVXCKHGV · pith_short_16: O2DZWVXCKHGVJMFR · pith_short_8: O2DZWVXC

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/O2DZWVXCKHGVJMFR2QGB4XCSN3 \
  | 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: 76879b56e251cd54b0b1d40c1e5c526ec1dedf9104a28e508479b5bc6a69d8c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "940cef5c5efdefee5e6a52eca550a12a3156200f5f7188da694806b4d0835c68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-04-14T06:54:41Z",
    "title_canon_sha256": "efb06291a830c9d2b8e1fb989ae7d5cee4751bc4cd5e52ccee198408c3968337"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03435",
    "kind": "arxiv",
    "version": 2
  }
}