Pith Number

pith:PES7YJB3

pith:2012:PES7YJB35ENDRS26C343GNV3KO

not attested not anchored not stored refs pending

A Diophantine problem with a prime and three squares of primes

Alessandro Languasco, Alessandro Zaccagnini

arxiv:1206.0246 v1 · 2012-06-01 · 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{PES7YJB35ENDRS26C343GNV3KO}

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	2026-05-18T03:37:52.822518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7925fc243be91a38cb5e16f9b336bb538d736394933b14a1047448bf2cf14d0d

Aliases

arxiv: 1206.0246 · arxiv_version: 1206.0246v1 · doi: 10.48550/arxiv.1206.0246 · pith_short_12: PES7YJB35END · pith_short_16: PES7YJB35ENDRS26 · pith_short_8: PES7YJB3

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/PES7YJB35ENDRS26C343GNV3KO \
  | 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: 7925fc243be91a38cb5e16f9b336bb538d736394933b14a1047448bf2cf14d0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc0ded6834fbfdf000d0defd3440f55eefb99c4123ba92385395dccc8d940e06",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2012-06-01T16:54:57Z",
    "title_canon_sha256": "467f53e230806a181dfa3a491adefcb732501033f0b532677d5fe7f52bcbcef7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.0246",
    "kind": "arxiv",
    "version": 1
  }
}