Pith Number

pith:O4BLI3NG

pith:2014:O4BLI3NGMNQJCNPTEROPW3IHPT

not attested not anchored not stored refs pending

A Generalization of Cover Free Families

Farokhlagha Moazami, Mehdi Azadi Motlagh

arxiv:1410.4361 v1 · 2014-10-16 · 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{O4BLI3NGMNQJCNPTEROPW3IHPT}

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	2026-05-18T02:39:56.339749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7702b46da663609135f3245cfb6d077cd37b5544f50c04ba6d587ae4cfb7f67c

Aliases

arxiv: 1410.4361 · arxiv_version: 1410.4361v1 · doi: 10.48550/arxiv.1410.4361 · pith_short_12: O4BLI3NGMNQJ · pith_short_16: O4BLI3NGMNQJCNPT · pith_short_8: O4BLI3NG

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/O4BLI3NGMNQJCNPTEROPW3IHPT \
  | 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: 7702b46da663609135f3245cfb6d077cd37b5544f50c04ba6d587ae4cfb7f67c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b22b4b3e9d7a07053ca3b89353ced33ab1aecbbf48be14615a5df5aeb0680da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-10-16T10:17:28Z",
    "title_canon_sha256": "47e85029d9a75ac9893f849b33cf8a27c429885e125ee6b25be7f1c0352d0e30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.4361",
    "kind": "arxiv",
    "version": 1
  }
}