Pith Number

pith:YF72U6PU

pith:2017:YF72U6PUXNC5WMXS6FESZYCZP5

not attested not anchored not stored refs pending

An algorithm to reconstruct convex polyhedra from their face normals and areas

Giuseppe Sellaroli

arxiv:1712.00825 v1 · 2017-12-03 · cs.CG · gr-qc · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YF72U6PUXNC5WMXS6FESZYCZP5}

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	2026-05-18T00:28:51.316528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c17faa79f4bb45db32f2f1492ce0597f44cd171f7eabc3267d1d41a0def1877c

Aliases

arxiv: 1712.00825 · arxiv_version: 1712.00825v1 · doi: 10.48550/arxiv.1712.00825 · pith_short_12: YF72U6PUXNC5 · pith_short_16: YF72U6PUXNC5WMXS · pith_short_8: YF72U6PU

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/YF72U6PUXNC5WMXS6FESZYCZP5 \
  | 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: c17faa79f4bb45db32f2f1492ce0597f44cd171f7eabc3267d1d41a0def1877c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3578b3b515ad60c994d75f3b28c9d7507fe3ab10e138554130a11681e0076480",
    "cross_cats_sorted": [
      "gr-qc",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-12-03T19:42:06Z",
    "title_canon_sha256": "ae8e1219788a3d5c244ca96af2c8568188e838aed62e9828d66e8345e1ff7d0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.00825",
    "kind": "arxiv",
    "version": 1
  }
}