Pith Number

pith:AK3QLUYD

pith:2018:AK3QLUYDP6YBLPYP3LQPC5BVIP

not attested not anchored not stored refs pending

Weighted external difference families and R-optimal AMD codes

Maura B. Paterson, Sophie Huczynska

arxiv:1805.01330 v1 · 2018-05-03 · 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{AK3QLUYDP6YBLPYP3LQPC5BVIP}

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	2026-05-18T00:16:51.748420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02b705d3037fb015bf0fdae0f1743543d34a9c02ace1b8b5d3196941fc805728

Aliases

arxiv: 1805.01330 · arxiv_version: 1805.01330v1 · doi: 10.48550/arxiv.1805.01330 · pith_short_12: AK3QLUYDP6YB · pith_short_16: AK3QLUYDP6YBLPYP · pith_short_8: AK3QLUYD

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/AK3QLUYDP6YBLPYP3LQPC5BVIP \
  | 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: 02b705d3037fb015bf0fdae0f1743543d34a9c02ace1b8b5d3196941fc805728

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2aa1a69d5ff453fc1652288b8869ed5a42d653964ba891e0dcde5f5aa6897a67",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-05-03T14:38:21Z",
    "title_canon_sha256": "7e8c27f7d25a1e7322b794b59a2bf5aaaec014546a55051cea3ce4f718fd535d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01330",
    "kind": "arxiv",
    "version": 1
  }
}