Pith Number

pith:RNZLO7JC

pith:2016:RNZLO7JCD73PCR4C2NG3VVOGAF

not attested not anchored not stored refs pending

Universal Sets and Cover-Free Families

Debjyoti Saharoy, Shailesh Vaya

arxiv:1606.01376 v1 · 2016-06-04 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RNZLO7JCD73PCR4C2NG3VVOGAF}

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	2026-05-18T01:12:54.293365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b72b77d221ff6f14782d34dbad5c60144041d8a4fd469c23b90466745aa2ed9

Aliases

arxiv: 1606.01376 · arxiv_version: 1606.01376v1 · doi: 10.48550/arxiv.1606.01376 · pith_short_12: RNZLO7JCD73P · pith_short_16: RNZLO7JCD73PCR4C · pith_short_8: RNZLO7JC

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/RNZLO7JCD73PCR4C2NG3VVOGAF \
  | 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: 8b72b77d221ff6f14782d34dbad5c60144041d8a4fd469c23b90466745aa2ed9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5221d47ef31a59a56e6eb53ad49d46d69e2b26761d2645d42a2c94a799ea0d9a",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-06-04T13:32:39Z",
    "title_canon_sha256": "f462a923d413b24bd1583372d2f930f2d014388427ca7aadf5588a433c310aef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.01376",
    "kind": "arxiv",
    "version": 1
  }
}