Pith Number

pith:2QEPSZQ4

pith:2016:2QEPSZQ4G4XR6CU7QXP3RFZOY7

not attested not anchored not stored refs pending

Classification of large partial plane spreads in $PG(6,2)$ and related combinatorial objects

Michael Kiermaier, Sascha Kurz, Thomas Honold

arxiv:1606.07655 v2 · 2016-06-24 · 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{2QEPSZQ4G4XR6CU7QXP3RFZOY7}

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	2026-05-17T23:58:19.795908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d408f9661c372f1f0a9f85dfb8972ec7ef1f2d4d0930a0043eeadcdad7600a7f

Aliases

arxiv: 1606.07655 · arxiv_version: 1606.07655v2 · doi: 10.48550/arxiv.1606.07655 · pith_short_12: 2QEPSZQ4G4XR · pith_short_16: 2QEPSZQ4G4XR6CU7 · pith_short_8: 2QEPSZQ4

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/2QEPSZQ4G4XR6CU7QXP3RFZOY7 \
  | 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: d408f9661c372f1f0a9f85dfb8972ec7ef1f2d4d0930a0043eeadcdad7600a7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ee0b3a7740149817cd7fc38dbedc2afb09357f9021d996c1320e130255753b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-06-24T12:22:09Z",
    "title_canon_sha256": "7d9e854fe2a48a196c0cac38a80d8f5b0d96283eeeca95b08e443fb7736c4c8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.07655",
    "kind": "arxiv",
    "version": 2
  }
}