Pith Number

pith:WNXHPMN4

pith:2017:WNXHPMN4VBYBSZBPCJ7HTXQYCY

not attested not anchored not stored refs pending

Non-existence of partial difference sets of order 8p^3 in Abelian groups

Stefaan De Winter, Zeying Wang

arxiv:1707.08662 v1 · 2017-07-26 · 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{WNXHPMN4VBYBSZBPCJ7HTXQYCY}

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	2026-05-18T00:39:22.320568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b36e77b1bca87019642f127e79de181624cc165124bc92ba18394be1ff91e4a6

Aliases

arxiv: 1707.08662 · arxiv_version: 1707.08662v1 · doi: 10.48550/arxiv.1707.08662 · pith_short_12: WNXHPMN4VBYB · pith_short_16: WNXHPMN4VBYBSZBP · pith_short_8: WNXHPMN4

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/WNXHPMN4VBYBSZBPCJ7HTXQYCY \
  | 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: b36e77b1bca87019642f127e79de181624cc165124bc92ba18394be1ff91e4a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d55c78ebe2f2c40abb4245d2daffc6f472f293ff14b2d9d4f03ec5fbf5f43cb0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-07-26T23:20:46Z",
    "title_canon_sha256": "589685291fa68f6f2c1c23e3296d98683b8d971d94ca66fdc150bb7b89e55ed0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.08662",
    "kind": "arxiv",
    "version": 1
  }
}