Pith Number

pith:Y2ATPFYN

pith:2018:Y2ATPFYN7335YT5ICUEVLGA7ZV

not attested not anchored not stored refs pending

On interrelations between strongly, weakly and chord separated set-systems (a geometric approach)

A.V. Karzanov, G.A. Koshevoy, V.I. Danilov

arxiv:1805.09595 v1 · 2018-05-24 · 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{Y2ATPFYN7335YT5ICUEVLGA7ZV}

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	2026-05-18T00:15:03.459048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c68137970dfef7dc4fa8150955981fcd61bfd1132d0b7a8b63def4c73a2d4775

Aliases

arxiv: 1805.09595 · arxiv_version: 1805.09595v1 · doi: 10.48550/arxiv.1805.09595 · pith_short_12: Y2ATPFYN7335 · pith_short_16: Y2ATPFYN7335YT5I · pith_short_8: Y2ATPFYN

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/Y2ATPFYN7335YT5ICUEVLGA7ZV \
  | 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: c68137970dfef7dc4fa8150955981fcd61bfd1132d0b7a8b63def4c73a2d4775

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47bfd844a886a959e808db9d66b7c52c9dff4d435808432323fb76c9f9f3ee3a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-05-24T10:41:48Z",
    "title_canon_sha256": "b77b100154a7b53cf01fcfa46a9164a3049261e8afaf2ae96c245c5234102e8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09595",
    "kind": "arxiv",
    "version": 1
  }
}