Pith Number

pith:G2OVLNDM

pith:2016:G2OVLNDMQSZ2M2DZAT2GBSRHIN

not attested not anchored not stored refs pending

When is $a^{n} + 1$ the sum of two squares?

Aaron Schmitt, Emily Stamm, Greg Dresden, Jeremy Rouse, Kylie Hess, Pan Yue, Saimon Islam, Terrin Warren

arxiv:1609.04391 v1 · 2016-09-14 · 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{G2OVLNDMQSZ2M2DZAT2GBSRHIN}

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	2026-05-17T23:48:02.489366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

369d55b46c84b3a6687904f460ca274367a8311ae8dd687af345b99647290965

Aliases

arxiv: 1609.04391 · arxiv_version: 1609.04391v1 · doi: 10.48550/arxiv.1609.04391 · pith_short_12: G2OVLNDMQSZ2 · pith_short_16: G2OVLNDMQSZ2M2DZ · pith_short_8: G2OVLNDM

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/G2OVLNDMQSZ2M2DZAT2GBSRHIN \
  | 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: 369d55b46c84b3a6687904f460ca274367a8311ae8dd687af345b99647290965

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8de3a8f919b5c9c2f15661e0a7dafbeafb81082f8281c733586e8a5506e2615",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2016-09-14T19:50:18Z",
    "title_canon_sha256": "8335f259417f1c912b1dc0cfbf28e0114ec07918f8f79cd5030406558890feae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.04391",
    "kind": "arxiv",
    "version": 1
  }
}