Pith Number

pith:UKRTCW4C

pith:2025:UKRTCW4CPMLAOXPYCY6UMH3GQW

not attested not anchored not stored refs pending

Understanding Fermat's Last Theorem's Proofs

Alex Qiu, Michael Sun, Spencer Nicklin, Tanish Sarathy

arxiv:2508.10362 v1 · 2025-08-14 · math.GM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UKRTCW4CPMLAOXPYCY6UMH3GQW}

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	2026-07-05T11:53:54.587901Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2a3315b827b16075df8163d461f6685bfc8a39d0e8c880c48e6cfe4a3b5b3fe

Aliases

arxiv: 2508.10362 · arxiv_version: 2508.10362v1 · doi: 10.48550/arxiv.2508.10362 · pith_short_12: UKRTCW4CPMLA · pith_short_16: UKRTCW4CPMLAOXPY · pith_short_8: UKRTCW4C

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/UKRTCW4CPMLAOXPYCY6UMH3GQW \
  | 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: a2a3315b827b16075df8163d461f6685bfc8a39d0e8c880c48e6cfe4a3b5b3fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13f324a6df5d3e2e678f0c1e9c8e0ed6dcef8153d67369a8dfb56ed7f96f7d60",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2025-08-14T06:00:31Z",
    "title_canon_sha256": "2459a0adab139d6c4cea80fd4bc3dbacb2bb9e727f391c30632280c8a34641e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.10362",
    "kind": "arxiv",
    "version": 1
  }
}