Pith Number

pith:3LNSHLAG

pith:2014:3LNSHLAGV6HS2D4U6NBHWWPE3W

not attested not anchored not stored refs pending

Incidence Bounds for Block Designs

Ben Lund, Shubhangi Saraf

arxiv:1407.7513 v2 · 2014-07-28 · 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{3LNSHLAGV6HS2D4U6NBHWWPE3W}

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	2026-05-18T00:54:04.016387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dadb23ac06af8f2d0f94f3427b59e4dd97d7a8c8a969ce79c52d0309db1cfc5b

Aliases

arxiv: 1407.7513 · arxiv_version: 1407.7513v2 · doi: 10.48550/arxiv.1407.7513 · pith_short_12: 3LNSHLAGV6HS · pith_short_16: 3LNSHLAGV6HS2D4U · pith_short_8: 3LNSHLAG

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/3LNSHLAGV6HS2D4U6NBHWWPE3W \
  | 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: dadb23ac06af8f2d0f94f3427b59e4dd97d7a8c8a969ce79c52d0309db1cfc5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24ecc7db74d579cba3402cd003bd739d89859cd1620715db9183e4fc3d675929",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-07-28T19:41:44Z",
    "title_canon_sha256": "45d0ee154161f3b2740246a0ae0ed184cb1bcc1eacf1b79a87df252a23620334"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7513",
    "kind": "arxiv",
    "version": 2
  }
}