Pith Number

pith:BV7BLFK5

pith:2019:BV7BLFK5ORTFFIA5ZQXZ6L57OX

not attested not anchored not stored refs pending

New computational results on a conjecture of Jacobsthal

Mario Ziller

arxiv:1903.11973 v2 · 2019-03-28 · 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{BV7BLFK5ORTFFIA5ZQXZ6L57OX}

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	2026-05-17T23:49:54.683396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d7e15955d746652a01dcc2f9f2fbf75d03966f3ee9ac839df7e800dcbefdc35

Aliases

arxiv: 1903.11973 · arxiv_version: 1903.11973v2 · doi: 10.48550/arxiv.1903.11973 · pith_short_12: BV7BLFK5ORTF · pith_short_16: BV7BLFK5ORTFFIA5 · pith_short_8: BV7BLFK5

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/BV7BLFK5ORTFFIA5ZQXZ6L57OX \
  | 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: 0d7e15955d746652a01dcc2f9f2fbf75d03966f3ee9ac839df7e800dcbefdc35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c80ed531bd146dc86937fa8c1b79091e3c5567d89d668ecc1233bc31020089e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2019-03-28T13:49:22Z",
    "title_canon_sha256": "c96f1a09754d8675ef4aaa1ac1bc13c5c6e7211d0686879b802b6f892717a6c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.11973",
    "kind": "arxiv",
    "version": 2
  }
}