Pith Number

pith:RJ4FGYTI

pith:2011:RJ4FGYTIPO2U5QN2664BXRDFSY

not attested not anchored not stored refs pending

Polynomial parametrization of Pythagorean quadruples, quintuples and sextuples

Leonid Vaserstein, Sophie Frisch

arxiv:1106.3493 v2 · 2011-06-17 · 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{RJ4FGYTIPO2U5QN2664BXRDFSY}

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	2026-05-18T04:05:27.441130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a785362687bb54ec1baf7b81bc465961729e02267bce87decc23979ca5ba098

Aliases

arxiv: 1106.3493 · arxiv_version: 1106.3493v2 · doi: 10.48550/arxiv.1106.3493 · pith_short_12: RJ4FGYTIPO2U · pith_short_16: RJ4FGYTIPO2U5QN2 · pith_short_8: RJ4FGYTI

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/RJ4FGYTIPO2U5QN2664BXRDFSY \
  | 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: 8a785362687bb54ec1baf7b81bc465961729e02267bce87decc23979ca5ba098

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89128e33ad24e0c4c38589ebb939f2b6278aa49786886b9e1d6a29e30202c3f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2011-06-17T14:15:03Z",
    "title_canon_sha256": "d46739ef0c0d0f280f95a1929c9cadd39ee8a43022700e064fe6623fa12cf7c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.3493",
    "kind": "arxiv",
    "version": 2
  }
}