Pith Number

pith:TAEAEOMX

pith:2013:TAEAEOMX4OGJWPW2BLVKKXTZIJ

not attested not anchored not stored refs pending

Existence of $q$-Analogs of Steiner Systems

Alexander Vardy, Alfred Wassermann, Michael Braun, Patric Ostergard, Tuvi Etzion

arxiv:1304.1462 v2 · 2013-04-04 · 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{TAEAEOMX4OGJWPW2BLVKKXTZIJ}

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	2026-05-18T03:26:22.318773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9808023997e38c9b3eda0aeaa55e79424609bc06b59d3780bafb4320e0fb8a15

Aliases

arxiv: 1304.1462 · arxiv_version: 1304.1462v2 · doi: 10.48550/arxiv.1304.1462 · pith_short_12: TAEAEOMX4OGJ · pith_short_16: TAEAEOMX4OGJWPW2 · pith_short_8: TAEAEOMX

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/TAEAEOMX4OGJWPW2BLVKKXTZIJ \
  | 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: 9808023997e38c9b3eda0aeaa55e79424609bc06b59d3780bafb4320e0fb8a15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cf79a6242fb68eb01e920e68e0cf20e0208f54dbd876ab2961f89806478dd92",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-04-04T18:47:22Z",
    "title_canon_sha256": "168f0422d8c41c5a77a05c1b6ba3ec0ffae1c09f2134072208bbb5c3afcf2b79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1462",
    "kind": "arxiv",
    "version": 2
  }
}