Pith Number

pith:D5ZGL3MG

pith:2011:D5ZGL3MG7AJHYP372C64B37BOL

not attested not anchored not stored refs pending

Conical Existence of Closed Curves on Convex Polyhedra

Costin Vilcu, Joseph O'Rourke

arxiv:1102.0823 v2 · 2011-02-04 · cs.DM · 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{D5ZGL3MG7AJHYP372C64B37BOL}

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	2026-05-18T04:28:47.460011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f7265ed86f8127c3f7fd0bdc0efe172f46031bf5d2fc58b3036aef72b695137

Aliases

arxiv: 1102.0823 · arxiv_version: 1102.0823v2 · doi: 10.48550/arxiv.1102.0823 · pith_short_12: D5ZGL3MG7AJH · pith_short_16: D5ZGL3MG7AJHYP37 · pith_short_8: D5ZGL3MG

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/D5ZGL3MG7AJHYP372C64B37BOL \
  | 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: 1f7265ed86f8127c3f7fd0bdc0efe172f46031bf5d2fc58b3036aef72b695137

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "955ee7bbede73a29e94336d5c22dac542afca559fc74a9357912286d10619e2c",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2011-02-04T01:18:00Z",
    "title_canon_sha256": "9f68a3005b4c7f3acdc623482d724344ccebd6cc13a7bac4ca822f0394c0ad83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.0823",
    "kind": "arxiv",
    "version": 2
  }
}