Pith Number

pith:N3EJ4BSV

pith:2013:N3EJ4BSVPSL2N35SVAZIRAU3TY

not attested not anchored not stored refs pending

Hyperplanes and hamiltonian circuits in Perfect Matroid Designs with fixed basis

Wojciech Kordecki

arxiv:1305.3119 v1 · 2013-05-14 · 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{N3EJ4BSVPSL2N35SVAZIRAU3TY}

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	2026-05-18T03:25:44.772133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ec89e06557c97a6efb2a83288829b9e1b672506c39f42fc15634d9d0ea9fb46

Aliases

arxiv: 1305.3119 · arxiv_version: 1305.3119v1 · doi: 10.48550/arxiv.1305.3119 · pith_short_12: N3EJ4BSVPSL2 · pith_short_16: N3EJ4BSVPSL2N35S · pith_short_8: N3EJ4BSV

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/N3EJ4BSVPSL2N35SVAZIRAU3TY \
  | 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: 6ec89e06557c97a6efb2a83288829b9e1b672506c39f42fc15634d9d0ea9fb46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33d7b90e3e30c4c34e5eef5eed5e93a8a65a73146e50746dae987b77cf5c2873",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-05-14T11:47:05Z",
    "title_canon_sha256": "213254a8b1c770701958bea42edc8a4f06882952bcd549a78129c95800e613e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3119",
    "kind": "arxiv",
    "version": 1
  }
}