Pith Number

pith:4LU5C4UA

pith:2018:4LU5C4UA7XYPXU2DD7XIR2SSXZ

not attested not anchored not stored refs pending

On a class of $(15_4 \, 20_3)$-configurations reflecting abstract properties of a perspective between tetrahedrons

Krzysztof Pra\.zmowski, Ma{\l}gorzata Pra\.zmowska

arxiv:1806.04241 v1 · 2018-06-11 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4LU5C4UA7XYPXU2DD7XIR2SSXZ}

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	2026-05-18T00:13:36.144654Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2e9d17280fdf0fbd3431fee88ea52be4221063cae16c11f59610102eb5bf2ed

Aliases

arxiv: 1806.04241 · arxiv_version: 1806.04241v1 · doi: 10.48550/arxiv.1806.04241 · pith_short_12: 4LU5C4UA7XYP · pith_short_16: 4LU5C4UA7XYPXU2D · pith_short_8: 4LU5C4UA

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/4LU5C4UA7XYPXU2DD7XIR2SSXZ \
  | 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: e2e9d17280fdf0fbd3431fee88ea52be4221063cae16c11f59610102eb5bf2ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c73862f0a1291739098bf81d3265873bfa6fd00afb8c0e7adb85cc3f18cea0ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-06-11T21:02:49Z",
    "title_canon_sha256": "97bac5cd8e7d3a9b1b1766e7d1140160ed2e7b33b2a59ac5f7305c0fb530080e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.04241",
    "kind": "arxiv",
    "version": 1
  }
}