Pith Number

pith:XRA5L7XQ

pith:2016:XRA5L7XQARVPUP2AZXIGGNP2P4

not attested not anchored not stored refs pending

On the Fermat-type Equation $x^3 + y^3 = z^p$

Nuno Freitas

arxiv:1601.06361 v1 · 2016-01-24 · 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{XRA5L7XQARVPUP2AZXIGGNP2P4}

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	2026-05-18T01:22:04.647399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc41d5fef0046afa3f40cdd06335fa7f2c9b949a8369334074ab1413494bda8f

Aliases

arxiv: 1601.06361 · arxiv_version: 1601.06361v1 · doi: 10.48550/arxiv.1601.06361 · pith_short_12: XRA5L7XQARVP · pith_short_16: XRA5L7XQARVPUP2A · pith_short_8: XRA5L7XQ

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/XRA5L7XQARVPUP2AZXIGGNP2P4 \
  | 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: bc41d5fef0046afa3f40cdd06335fa7f2c9b949a8369334074ab1413494bda8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd72caf6d5775a7a6ba190f8f9173db4630248ced2fe5cf8d29c0b0f743ebe4b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2016-01-24T09:27:30Z",
    "title_canon_sha256": "a9aad2a8c902c18c245f23ca70658beb37772c486345b445eea7386a141cf8f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.06361",
    "kind": "arxiv",
    "version": 1
  }
}