Pith Number

pith:W6UQDL33

pith:2012:W6UQDL33OB2RKLWQ2GHXYGVYTR

not attested not anchored not stored refs pending

q-Analogs of Steiner Systems

Alexander Vardy, Tuvi Etzion

arxiv:1211.2393 v1 · 2012-11-11 · 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{W6UQDL33OB2RKLWQ2GHXYGVYTR}

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	2026-05-18T03:41:03.517785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7a901af7b7075152ed0d18f7c1ab89c7af0a9ce615b64eaadab7232073a7359

Aliases

arxiv: 1211.2393 · arxiv_version: 1211.2393v1 · doi: 10.48550/arxiv.1211.2393 · pith_short_12: W6UQDL33OB2R · pith_short_16: W6UQDL33OB2RKLWQ · pith_short_8: W6UQDL33

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/W6UQDL33OB2RKLWQ2GHXYGVYTR \
  | 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: b7a901af7b7075152ed0d18f7c1ab89c7af0a9ce615b64eaadab7232073a7359

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "004ee4319074fb0d9df6ab833cb399b14fe27dc2546dd546064e3fa82d8bdf94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-11-11T10:03:05Z",
    "title_canon_sha256": "2c667a523c1f8044d3531ad78069b1ab19bad4b47e512e50b5be0f28fff9e242"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2393",
    "kind": "arxiv",
    "version": 1
  }
}