Pith Number

pith:QCMGID6B

pith:2019:QCMGID6BTLGL3LP6LWN4ZPQBU4

not attested not anchored not stored refs pending

Infinite families of $2$-designs from a class of cyclic codes with two non-zeros

Cuiling Fan, Rong Wang, Xiaoni Du

arxiv:1904.04242 v1 · 2019-04-07 · math.CO

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QCMGID6BTLGL3LP6LWN4ZPQBU4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:48:59.476904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8098640fc19accbdadfe5d9bccbe01a728bc4abd21ca66c4152c46086e7c07fa

Aliases

arxiv: 1904.04242 · arxiv_version: 1904.04242v1 · doi: 10.48550/arxiv.1904.04242 · pith_short_12: QCMGID6BTLGL · pith_short_16: QCMGID6BTLGL3LP6 · pith_short_8: QCMGID6B

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/QCMGID6BTLGL3LP6LWN4ZPQBU4 \
  | 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: 8098640fc19accbdadfe5d9bccbe01a728bc4abd21ca66c4152c46086e7c07fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11990a3f111d147ae69aade935f52ba9127be50020e735b4c73e62c5d13c0709",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-04-07T13:10:13Z",
    "title_canon_sha256": "aacfe7794e1b716a84ae9a9bda7c34e9362c76192162242ce5e0e1fe329b35e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04242",
    "kind": "arxiv",
    "version": 1
  }
}