Pith Number

pith:7ISTP5VK

pith:2003:7ISTP5VK7K774JMUBZMUTUDG2J

not attested not anchored not stored refs pending

On Kurepa's problems in number Theory

Aleksandar Ivi\'c, \v{Z}arko Mijajlovi\'c

arxiv:math/0312202 v1 · 2003-12-10 · 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{7ISTP5VK7K774JMUBZMUTUDG2J}

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	2026-05-18T02:35:38.548390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa2537f6aafabffe25940e5949d066d26b4adb3844f02d92d09b2ef5b5500245

Aliases

arxiv: math/0312202 · arxiv_version: math/0312202v1 · doi: 10.48550/arxiv.math/0312202 · pith_short_12: 7ISTP5VK7K77 · pith_short_16: 7ISTP5VK7K774JMU · pith_short_8: 7ISTP5VK

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/7ISTP5VK7K774JMUBZMUTUDG2J \
  | 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: fa2537f6aafabffe25940e5949d066d26b4adb3844f02d92d09b2ef5b5500245

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6975caf5847bee2a34e7641a20e8cd48cc7068f690584fa07230284c1f3c4b3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.NT",
    "submitted_at": "2003-12-10T07:58:43Z",
    "title_canon_sha256": "b55b82481e123311e90bd1b07f634998e50a522701272c04ee91132d377697d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0312202",
    "kind": "arxiv",
    "version": 1
  }
}