Pith Number

pith:O443KJQN

pith:2010:O443KJQNEXVXD3F3YJJ5SGDHIE

not attested not anchored not stored refs pending

Down-linking $(K_v,\Gamma)$-designs to $P_3$-designs

Anita Pasotti, Anna Benini, Luca Giuzzi

arxiv:1004.4127 v3 · 2010-04-23 · 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{O443KJQNEXVXD3F3YJJ5SGDHIE}

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	2026-05-18T03:22:08.279302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7739b5260d25eb71ecbbc253d91867412a0bd3b274779feb325ba4a6f71facd0

Aliases

arxiv: 1004.4127 · arxiv_version: 1004.4127v3 · doi: 10.48550/arxiv.1004.4127 · pith_short_12: O443KJQNEXVX · pith_short_16: O443KJQNEXVXD3F3 · pith_short_8: O443KJQN

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/O443KJQNEXVXD3F3YJJ5SGDHIE \
  | 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: 7739b5260d25eb71ecbbc253d91867412a0bd3b274779feb325ba4a6f71facd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ac1d35e7871933d32167a3d717ad7b96e87998e962a15dbb331aa768fe03cf9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2010-04-23T13:24:16Z",
    "title_canon_sha256": "b4e560749f8c7a3f330850e85a36a8067a05b0d21f07d21b227260e579f71295"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.4127",
    "kind": "arxiv",
    "version": 3
  }
}