Pith Number

pith:EHJM4TPD

pith:2014:EHJM4TPDBNTPMMOO52SOSGTI4H

not attested not anchored not stored refs pending

Pairwise balanced designs covered by bounded flats

Nicholas M.A. Benson, Peter J. Dukes

arxiv:1410.7437 v1 · 2014-10-27 · 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{EHJM4TPDBNTPMMOO52SOSGTI4H}

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	2026-05-18T02:39:17.133587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21d2ce4de30b66f631ceeea4e91a68e1f80b65191a97258192d01b3659887dd4

Aliases

arxiv: 1410.7437 · arxiv_version: 1410.7437v1 · doi: 10.48550/arxiv.1410.7437 · pith_short_12: EHJM4TPDBNTP · pith_short_16: EHJM4TPDBNTPMMOO · pith_short_8: EHJM4TPD

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/EHJM4TPDBNTPMMOO52SOSGTI4H \
  | 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: 21d2ce4de30b66f631ceeea4e91a68e1f80b65191a97258192d01b3659887dd4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04413f3dbf82311f8c96440a6b09afce06c7f8a1e782ca814348cab9ce4b1f9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-10-27T21:27:14Z",
    "title_canon_sha256": "11bc62f5b62159771e3b1d4d7cd78e851980947938d0ff57e2a39f0dd61ccfb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.7437",
    "kind": "arxiv",
    "version": 1
  }
}