Pith Number

pith:EZZ5OHTU

pith:2017:EZZ5OHTUDGAFB44D2Q3ZLPOLSH

not attested not anchored not stored refs pending

Cyclotomic Construction of Strong External Difference Families in Finite Fields

Fangwei Fu, Jiejing Wen, Keqin Feng, Minghui Yang

arxiv:1701.01796 v1 · 2017-01-07 · cs.IT · math.CO · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EZZ5OHTUDGAFB44D2Q3ZLPOLSH}

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	2026-05-18T00:53:15.084115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2673d71e74198050f383d43795bdcb91dfe025a303ea869ce6f88688dded6d93

Aliases

arxiv: 1701.01796 · arxiv_version: 1701.01796v1 · doi: 10.48550/arxiv.1701.01796 · pith_short_12: EZZ5OHTUDGAF · pith_short_16: EZZ5OHTUDGAFB44D · pith_short_8: EZZ5OHTU

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/EZZ5OHTUDGAFB44D2Q3ZLPOLSH \
  | 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: 2673d71e74198050f383d43795bdcb91dfe025a303ea869ce6f88688dded6d93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21924bca783ea7c6a9518284c3e4902c0568866cdbc540c6f13550e681c48495",
    "cross_cats_sorted": [
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-01-07T07:14:31Z",
    "title_canon_sha256": "c2ef0431c658a905c21631e62272d340e3b6fc912c3323b26fd406a95f6e397c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.01796",
    "kind": "arxiv",
    "version": 1
  }
}