Pith Number

pith:NXCZ4WYT

pith:2015:NXCZ4WYTSJITZZP2NTTBJB3RAC

not attested not anchored not stored refs pending

A New Approach to Examine q-Steiner Systems

Tuvi Etzion

arxiv:1507.08503 v7 · 2015-07-30 · 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{NXCZ4WYTSJITZZP2NTTBJB3RAC}

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	2026-05-18T00:51:28.586095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6dc59e5b1392513ce5fa6ce6148771009216dd0d12b6d7d103c49dd3ed25fedc

Aliases

arxiv: 1507.08503 · arxiv_version: 1507.08503v7 · doi: 10.48550/arxiv.1507.08503 · pith_short_12: NXCZ4WYTSJIT · pith_short_16: NXCZ4WYTSJITZZP2 · pith_short_8: NXCZ4WYT

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/NXCZ4WYTSJITZZP2NTTBJB3RAC \
  | 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: 6dc59e5b1392513ce5fa6ce6148771009216dd0d12b6d7d103c49dd3ed25fedc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b443682c0ec532438061cf2570ffb9b037e66f87e313bfc7a9505cb19a7b2f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-07-30T13:49:07Z",
    "title_canon_sha256": "746a2ada245c38704d32660184cf9b6bb5a1ce3b2f002d3b8689c3c2c39eceed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.08503",
    "kind": "arxiv",
    "version": 7
  }
}