Pith Number

pith:3SWZZRFL

pith:2020:3SWZZRFLGIKNY4TZPDAVXWJR7R

not attested not anchored not stored refs pending

Thick weakly distance-regular digraphs

Kaishun Wang, Yuefeng Yang

arxiv:2003.08053 v1 · 2020-03-18 · 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{3SWZZRFLGIKNY4TZPDAVXWJR7R}

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	2026-07-05T00:49:03.830736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcad9cc4ab3214dc727978c15bd931fc533a3557479c9b45cac17caf66677f17

Aliases

arxiv: 2003.08053 · arxiv_version: 2003.08053v1 · doi: 10.48550/arxiv.2003.08053 · pith_short_12: 3SWZZRFLGIKN · pith_short_16: 3SWZZRFLGIKNY4TZ · pith_short_8: 3SWZZRFL

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/3SWZZRFLGIKNY4TZPDAVXWJR7R \
  | 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: dcad9cc4ab3214dc727978c15bd931fc533a3557479c9b45cac17caf66677f17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "936d6d3317dc4974635d596e9ce62a4a6f216bdd69534ebfb38b2191efe1da3f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2020-03-18T05:43:21Z",
    "title_canon_sha256": "296cf7dcc7ac718d814e9a5098262205ff047d5a2f0a8739baf9bfce9df03189"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.08053",
    "kind": "arxiv",
    "version": 1
  }
}