Pith Number

pith:CV5FZZEH

pith:1998:CV5FZZEHN27WDGOJIEP2GI5AOF

not attested not anchored not stored refs pending

Strongly almost disjoint sets and weakly uniform bases

Paul J. Szeptycki, Saharon Shelah, Sheldon W. Davis, Winfried Just, Zolt\'an Balogh

arxiv:math/9803167 v1 · 1998-03-15 · math.LO · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CV5FZZEHN27WDGOJIEP2GI5AOF}

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	2026-05-18T01:05:34.166540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

157a5ce4876ebf6199c9411fa323a07168b6d3eb75d326423229a7e960855ba3

Aliases

arxiv: math/9803167 · arxiv_version: math/9803167v1 · doi: 10.48550/arxiv.math/9803167 · pith_short_12: CV5FZZEHN27W · pith_short_16: CV5FZZEHN27WDGOJ · pith_short_8: CV5FZZEH

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/CV5FZZEHN27WDGOJIEP2GI5AOF \
  | 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: 157a5ce4876ebf6199c9411fa323a07168b6d3eb75d326423229a7e960855ba3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "921ee4a0755babf67e886b9a99f8404e18ce45e125d61ce851aedc9ed603b5cd",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "1998-03-15T00:00:00Z",
    "title_canon_sha256": "5804f9e0657eb9a130fc4d5f94f6956edba77971d891a170929ad67f1ad9e090"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9803167",
    "kind": "arxiv",
    "version": 1
  }
}