Pith Number

pith:XJTFSVYS

pith:2019:XJTFSVYSI6VTZOPYG2VGWZJ4TS

not attested not anchored not stored refs pending

On the 486-vertex distance-regular graphs of Koolen--Riebeek and Soicher

Daniel R. Hawtin, Robert F. Bailey

arxiv:1908.07104 v2 · 2019-08-19 · 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{XJTFSVYSI6VTZOPYG2VGWZJ4TS}

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	2026-07-05T01:17:57.582936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba6659571247ab3cb9f836aa6b653c9cbc587a92a8f86da64734f6e57460409e

Aliases

arxiv: 1908.07104 · arxiv_version: 1908.07104v2 · doi: 10.48550/arxiv.1908.07104 · pith_short_12: XJTFSVYSI6VT · pith_short_16: XJTFSVYSI6VTZOPY · pith_short_8: XJTFSVYS

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/XJTFSVYSI6VTZOPYG2VGWZJ4TS \
  | 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: ba6659571247ab3cb9f836aa6b653c9cbc587a92a8f86da64734f6e57460409e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f8bc25f33a6d75e4811770a173efec8901cb3903d80ae4fa2c510aa723ac125",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-08-19T23:22:42Z",
    "title_canon_sha256": "89b35b45d0d4fb7eb6c033d8d2537244e4886de411fc848cfec6a4acf6c7dac1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07104",
    "kind": "arxiv",
    "version": 2
  }
}