Pith Number

pith:7IR4OYPA

pith:2019:7IR4OYPARKTRN3YWFOIUQFO3U2

not attested not anchored not stored refs pending

Cyclic pentagons and hexagons with integer sides, diagonals and areas

Ajai Choudhry

arxiv:1906.00345 v1 · 2019-05-26 · math.NT · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7IR4OYPARKTRN3YWFOIUQFO3U2}

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	2026-05-17T23:44:27.376201Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa23c761e08aa716ef162b914815dba6ba41214e6d315b72ea8f0b8023de22b2

Aliases

arxiv: 1906.00345 · arxiv_version: 1906.00345v1 · doi: 10.48550/arxiv.1906.00345 · pith_short_12: 7IR4OYPARKTR · pith_short_16: 7IR4OYPARKTRN3YW · pith_short_8: 7IR4OYPA

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/7IR4OYPARKTRN3YWFOIUQFO3U2 \
  | 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: fa23c761e08aa716ef162b914815dba6ba41214e6d315b72ea8f0b8023de22b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3c6d7198bc937ae6ba98370cb97c588c146e0b5cacd3d3180dd739a38e215ed",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2019-05-26T00:31:20Z",
    "title_canon_sha256": "e90afd22148842825d7105482a8056fc6848cb9f7bae3cf1a761565f7f26479c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.00345",
    "kind": "arxiv",
    "version": 1
  }
}