Pith Number

pith:BQMZ7ZF6

pith:2004:BQMZ7ZF6NN57FQ2AD4AKSALEMD

not attested not anchored not stored refs pending

Unfolding Smooth Prismatoids

Joseph O'Rourke, Nadia Benbernou, Patricia Cahn

arxiv:cs/0407063 v3 · 2004-07-28 · cs.CG · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQMZ7ZF6NN57FQ2AD4AKSALEMD}

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	2026-05-18T02:24:58.829487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c199fe4be6b7bf2c3401f00a9016460d213e8d337dfff997216c4c479784d1f

Aliases

arxiv: cs/0407063 · arxiv_version: cs/0407063v3 · doi: 10.48550/arxiv.cs/0407063 · pith_short_12: BQMZ7ZF6NN57 · pith_short_16: BQMZ7ZF6NN57FQ2A · pith_short_8: BQMZ7ZF6

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/BQMZ7ZF6NN57FQ2AD4AKSALEMD \
  | 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: 0c199fe4be6b7bf2c3401f00a9016460d213e8d337dfff997216c4c479784d1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3de69fbfcea02a6e37864fb12ac958b1649c98aaf0a25a83b960e6ac79ca43f",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2004-07-28T20:21:31Z",
    "title_canon_sha256": "cbc831c06f7176d72a100f2f9f35193972233f56c92ddb60ea036c4282c8adb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0407063",
    "kind": "arxiv",
    "version": 3
  }
}