Pith Number

pith:EK6YWWKZ

pith:2026:EK6YWWKZJ6CMLE7342JTTDAK4V

not attested not anchored not stored refs pending

Cyclotomic skew partial difference sets and partial difference families

Sophie Huczynska, Tekg\"ul Kalayc{\i}

arxiv:2605.19596 v1 · 2026-05-19 · 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{EK6YWWKZJ6CMLE7342JTTDAK4V}

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	2026-05-20T01:05:53.511587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22bd8b59594f84c593fbe693398c0ae5688684003b6803c748afda2958923b3c

Aliases

arxiv: 2605.19596 · arxiv_version: 2605.19596v1 · doi: 10.48550/arxiv.2605.19596 · pith_short_12: EK6YWWKZJ6CM · pith_short_16: EK6YWWKZJ6CMLE73 · pith_short_8: EK6YWWKZ

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/EK6YWWKZJ6CMLE7342JTTDAK4V \
  | 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: 22bd8b59594f84c593fbe693398c0ae5688684003b6803c748afda2958923b3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41d29b75d2a969069230fb4f38be6297639835aa0d5d75d8f5fe502686d18e4a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-05-19T09:40:08Z",
    "title_canon_sha256": "01dcfe56077758231d68ecd61f6c5fbc4927fa7c9daa899c9b87b11ad75fa0bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19596",
    "kind": "arxiv",
    "version": 1
  }
}