Pith Number

pith:SESRWT3E

pith:2024:SESRWT3EIFVN44OJJWT2UURQXP

not attested not anchored not stored refs pending

Locally primitive block designs

Cai Heng Li, Jianfu Chen, Peice Hua, Yanni Wu

arxiv:2403.16822 v2 · 2024-03-25 · math.CO · math.GR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SESRWT3EIFVN44OJJWT2UURQXP}

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	2026-07-05T09:01:31.580162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91251b4f64416ade71c94da7aa5230bbf2df9a5b510d6a8c5be7e19e218c7374

Aliases

arxiv: 2403.16822 · arxiv_version: 2403.16822v2 · doi: 10.48550/arxiv.2403.16822 · pith_short_12: SESRWT3EIFVN · pith_short_16: SESRWT3EIFVN44OJ · pith_short_8: SESRWT3E

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/SESRWT3EIFVN44OJJWT2UURQXP \
  | 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: 91251b4f64416ade71c94da7aa5230bbf2df9a5b510d6a8c5be7e19e218c7374

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52aa6b9020b203b2677017cbb6212eec89ef5f908786ea9e224e19ea6150705c",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2024-03-25T14:47:29Z",
    "title_canon_sha256": "a743ac8aaeefb43edf06b6fc348e5a6a55c264f33fc70da69c080ff8d8e0f0f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.16822",
    "kind": "arxiv",
    "version": 2
  }
}