Pith Number

pith:CZDGUTEB

pith:2017:CZDGUTEBRKCGUEWN5E7D6ALPKI

not attested not anchored not stored refs pending

Non-existence of two types of partial difference sets

Eric Neibert, Stefaan De Winter, Zeying Wang

arxiv:1703.00345 v1 · 2017-03-01 · 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{CZDGUTEBRKCGUEWN5E7D6ALPKI}

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	2026-05-18T00:49:43.181715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16466a4c818a846a12cde93e3f016f52326eec696617a77fa0969c4fc61a4a40

Aliases

arxiv: 1703.00345 · arxiv_version: 1703.00345v1 · doi: 10.48550/arxiv.1703.00345 · pith_short_12: CZDGUTEBRKCG · pith_short_16: CZDGUTEBRKCGUEWN · pith_short_8: CZDGUTEB

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/CZDGUTEBRKCGUEWN5E7D6ALPKI \
  | 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: 16466a4c818a846a12cde93e3f016f52326eec696617a77fa0969c4fc61a4a40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4915eb721657ab195a0253f4f8666688278a5352d5e48b66a350ba82b9b0bb1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-03-01T15:32:07Z",
    "title_canon_sha256": "4f95d1775815fe34603c1ab5627066ab8d2ec01e61f9dc73c444ebd84b4e09a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.00345",
    "kind": "arxiv",
    "version": 1
  }
}