Pith Number

pith:5P23UKVU

pith:2019:5P23UKVUIMJP2VKWRGRFL4LBJF

not attested not anchored not stored refs pending

Pairs of Pythagorean triangles with given catheti ratios

M. Ska{\l}ba, M. Ulas

arxiv:1907.01229 v1 · 2019-07-02 · 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{5P23UKVUIMJP2VKWRGRFL4LBJF}

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	2026-05-17T23:41:40.892788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebf5ba2ab44312fd555689a255f16149694057f79fa7856f181d2678b8ce8546

Aliases

arxiv: 1907.01229 · arxiv_version: 1907.01229v1 · doi: 10.48550/arxiv.1907.01229 · pith_short_12: 5P23UKVUIMJP · pith_short_16: 5P23UKVUIMJP2VKW · pith_short_8: 5P23UKVU

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/5P23UKVUIMJP2VKWRGRFL4LBJF \
  | 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: ebf5ba2ab44312fd555689a255f16149694057f79fa7856f181d2678b8ce8546

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db50435974a15ddd25b5d4844e44d448e9242e672a36bbdfd010f112e40f8bbb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2019-07-02T08:23:20Z",
    "title_canon_sha256": "f0fecd7e63c4b7b27602051c28fe53e4b8b53846669ca8c8249d2491a06740f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01229",
    "kind": "arxiv",
    "version": 1
  }
}