Pith Number

pith:XPISD7II

pith:2017:XPISD7IIQDAMTUNYC7XHIV3IHI

not attested not anchored not stored refs pending

Addendum to: Edge-Unfolding Nearly Flat Convex Caps

Joseph O'Rourke

arxiv:1709.02433 v1 · 2017-09-02 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XPISD7IIQDAMTUNYC7XHIV3IHI}

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.

Cited by

1 paper in Pith

Unfolding Polyhedra

Receipt and verification

First computed	2026-05-18T00:35:45.825623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbd121fd0880c0c9d1b817ee7457683a0985eb91046bfee21ffc1c14585fdb5e

Aliases

arxiv: 1709.02433 · arxiv_version: 1709.02433v1 · doi: 10.48550/arxiv.1709.02433 · pith_short_12: XPISD7IIQDAM · pith_short_16: XPISD7IIQDAMTUNY · pith_short_8: XPISD7II

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/XPISD7IIQDAMTUNYC7XHIV3IHI \
  | 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: bbd121fd0880c0c9d1b817ee7457683a0985eb91046bfee21ffc1c14585fdb5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8eeb4bd3e0b50aef4027d1b6128206f4bd6e87f76232bd2b182361a8f051cbe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-09-02T19:50:40Z",
    "title_canon_sha256": "8ad70932a6cb06d10c53ed37548138c8fae3f69bc93cf5e51b9f4f49cdf6499f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02433",
    "kind": "arxiv",
    "version": 1
  }
}