Pith Number

pith:ESFLC5AW

pith:2025:ESFLC5AWC24T4EXIFPNV7WKBZN

not attested not anchored not stored refs pending

Point-transitive Steiner systems S(2,6,111/121/126), S(2,7,169/175)

Ivan Hetman

arxiv:2504.14931 v1 · 2025-04-21 · 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{ESFLC5AWC24T4EXIFPNV7WKBZN}

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.

Cited by

1 paper in Pith

Steiner systems $S(2,6,226)$ and $S(2,6,441)$ exist

Receipt and verification

First computed	2026-07-05T10:51:53.512721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

248ab1741616b93e12e82bdb5fd941cb46da2bde9eaef6de53145ece0513ac40

Aliases

arxiv: 2504.14931 · arxiv_version: 2504.14931v1 · doi: 10.48550/arxiv.2504.14931 · pith_short_12: ESFLC5AWC24T · pith_short_16: ESFLC5AWC24T4EXI · pith_short_8: ESFLC5AW

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/ESFLC5AWC24T4EXIFPNV7WKBZN \
  | 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: 248ab1741616b93e12e82bdb5fd941cb46da2bde9eaef6de53145ece0513ac40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "246f61f314b75e693b3e8a475678cd88aead9a65dd1abc49b465451a387dc4de",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-04-21T07:50:57Z",
    "title_canon_sha256": "329a5b97a4c8ce0432ff50a3662b003909336e7b5f4238e6d67b2a68b138efd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.14931",
    "kind": "arxiv",
    "version": 1
  }
}