Pith Number

pith:WHE5IZGW

pith:2018:WHE5IZGWHCRFXXRKYT5Q2CFWMP

not attested not anchored not stored refs pending

Designs over finite fields by difference methods

Anamari Nakic, Marco Buratti

arxiv:1808.06657 v2 · 2018-08-20 · 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{WHE5IZGWHCRFXXRKYT5Q2CFWMP}

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	2026-05-17T23:52:41.224982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1c9d464d638a25bde2ac4fb0d08b663f4137a5b08d74812c08a32ce309b1015

Aliases

arxiv: 1808.06657 · arxiv_version: 1808.06657v2 · doi: 10.48550/arxiv.1808.06657 · pith_short_12: WHE5IZGWHCRF · pith_short_16: WHE5IZGWHCRFXXRK · pith_short_8: WHE5IZGW

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/WHE5IZGWHCRFXXRKYT5Q2CFWMP \
  | 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: b1c9d464d638a25bde2ac4fb0d08b663f4137a5b08d74812c08a32ce309b1015

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0804adc6a02622919960037913dbfc655ee2b1db3d2238edec9782cbb7986f95",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-08-20T19:16:51Z",
    "title_canon_sha256": "40ad65a9da3cc5a343531b5862fe5f4caa4bb22976739172e7527262b8af4a23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06657",
    "kind": "arxiv",
    "version": 2
  }
}