Pith Number

pith:PJBILMWY

pith:2018:PJBILMWYEGG72WHU6JJ57WZTUY

not attested not anchored not stored refs pending

The spectrum for large sets of $(3,\lambda)$-GDDs of type $g^u$

H. Cao, R. Javadi, X. Niu

arxiv:1804.04364 v1 · 2018-04-12 · 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{PJBILMWYEGG72WHU6JJ57WZTUY}

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	2026-05-18T00:18:37.782523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a4285b2d8218dfd58f4f253dfdb33a6094e1b0a4a8e83a8761388bb2c2cff8c

Aliases

arxiv: 1804.04364 · arxiv_version: 1804.04364v1 · doi: 10.48550/arxiv.1804.04364 · pith_short_12: PJBILMWYEGG7 · pith_short_16: PJBILMWYEGG72WHU · pith_short_8: PJBILMWY

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/PJBILMWYEGG72WHU6JJ57WZTUY \
  | 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: 7a4285b2d8218dfd58f4f253dfdb33a6094e1b0a4a8e83a8761388bb2c2cff8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1715b696693224c014e757020047e90953027bd59f9c63753cf67ae53700aa1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-04-12T07:57:35Z",
    "title_canon_sha256": "d4434cd626a4465bf9bcb3751e355e0a3a5e38984fe0329af210089b86dddb0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04364",
    "kind": "arxiv",
    "version": 1
  }
}