Pith Number

pith:KJMVVFB7

pith:2019:KJMVVFB7DLCLKJV4FGW637BHOU

not attested not anchored not stored refs pending

Fully Automatic, Verified Classification of all Frankl-Complete (FC(6)) Set Families

Bojan Vu\v{c}kovi\'c, Filip Mari\'c, Miodrag \v{Z}ivkovi\'c

arxiv:1902.08765 v1 · 2019-02-23 · cs.LO · 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{KJMVVFB7DLCLKJV4FGW637BHOU}

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	2026-05-17T23:52:50.006279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52595a943f1ac4b526bc29adedfc27752c623cb0ae50a5dc162fc11522108e71

Aliases

arxiv: 1902.08765 · arxiv_version: 1902.08765v1 · doi: 10.48550/arxiv.1902.08765 · pith_short_12: KJMVVFB7DLCL · pith_short_16: KJMVVFB7DLCLKJV4 · pith_short_8: KJMVVFB7

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/KJMVVFB7DLCLKJV4FGW637BHOU \
  | 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: 52595a943f1ac4b526bc29adedfc27752c623cb0ae50a5dc162fc11522108e71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfe2c8aeb8283414e988bef9df5f1afe6cccae4df2f4dc8023d8f34befa4028f",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-02-23T09:38:01Z",
    "title_canon_sha256": "8b566ee83a50da9b0a3d292185bc47aa33f5ce2b37423576b06cba6dc63638d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08765",
    "kind": "arxiv",
    "version": 1
  }
}