Pith Number

pith:5ICFRT6Y

pith:2018:5ICFRT6YSPWJFGMMVGGFTUGUGF

not attested not anchored not stored refs pending

The complement of a subspace in a classical polar space

Krzysztof Petelczyc, Mariusz \.Zynel

arxiv:1805.00229 v1 · 2018-05-01 · 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{5ICFRT6YSPWJFGMMVGGFTUGUGF}

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	2026-05-18T00:17:10.231699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea0458cfd893ec92998ca98c59d0d43143752baeb3c7ba13a5da4692487afc23

Aliases

arxiv: 1805.00229 · arxiv_version: 1805.00229v1 · doi: 10.48550/arxiv.1805.00229 · pith_short_12: 5ICFRT6YSPWJ · pith_short_16: 5ICFRT6YSPWJFGMM · pith_short_8: 5ICFRT6Y

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/5ICFRT6YSPWJFGMMVGGFTUGUGF \
  | 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: ea0458cfd893ec92998ca98c59d0d43143752baeb3c7ba13a5da4692487afc23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d0dedff028fb9e9f74180fc1ba870f45b9ec939dcd1bf5b0972ac876cfe1efc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-05-01T08:15:30Z",
    "title_canon_sha256": "df0a8afa56f2a6106da46ae946ba9e1a9402be9abfa605d13255d16bf3444dd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.00229",
    "kind": "arxiv",
    "version": 1
  }
}