Pith Number

pith:FFKXFWF2

pith:2015:FFKXFWF2INGVADJVDVDWV53ZMP

not attested not anchored not stored refs pending

On the greatest prime factor of some divisibility sequences

Amir Akbary, Soroosh Yazdani

arxiv:1505.06500 v1 · 2015-05-24 · 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{FFKXFWF2INGVADJVDVDWV53ZMP}

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	2026-05-18T02:03:44.827067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

295572d8ba434d500d351d476af77963f16ee6e822a3b001788f69f9bcefe695

Aliases

arxiv: 1505.06500 · arxiv_version: 1505.06500v1 · doi: 10.48550/arxiv.1505.06500 · pith_short_12: FFKXFWF2INGV · pith_short_16: FFKXFWF2INGVADJV · pith_short_8: FFKXFWF2

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/FFKXFWF2INGVADJVDVDWV53ZMP \
  | 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: 295572d8ba434d500d351d476af77963f16ee6e822a3b001788f69f9bcefe695

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0aa02d27aa4a398e4412f827a2d240bcd25744cc6c1fdc3b8a7364146f11c17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2015-05-24T23:27:49Z",
    "title_canon_sha256": "cf6bcb1fab9ff74e4b417835ccec37a59d14e182c047415003564edded25b547"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06500",
    "kind": "arxiv",
    "version": 1
  }
}