Pith Number

pith:BRPLFHI3

pith:2014:BRPLFHI3JRZ2756MP4WEDQ45VH

not attested not anchored not stored refs pending

Searching for a counterexample to Kurepa's Conjecture

Milos Tatarevic, Vladica Andreji\'c

arxiv:1409.0800 v3 · 2014-09-02 · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BRPLFHI3JRZ2756MP4WEDQ45VH}

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	2026-05-18T01:10:46.066583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c5eb29d1b4c73aff7cc7f2c41c39da9c345476108618fa8423b58dcf158f3dd

Aliases

arxiv: 1409.0800 · arxiv_version: 1409.0800v3 · doi: 10.48550/arxiv.1409.0800 · pith_short_12: BRPLFHI3JRZ2 · pith_short_16: BRPLFHI3JRZ2756M · pith_short_8: BRPLFHI3

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/BRPLFHI3JRZ2756MP4WEDQ45VH \
  | 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: 0c5eb29d1b4c73aff7cc7f2c41c39da9c345476108618fa8423b58dcf158f3dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d24a4d3472ab528a5193160e54882376c5228e3e527d0b6f74a404e0dc082577",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2014-09-02T17:25:05Z",
    "title_canon_sha256": "59db78d6539deedd989b5df20a32a095aadd6d40235b5a6ba9ed6cc06248cd83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.0800",
    "kind": "arxiv",
    "version": 3
  }
}