Pith Number

pith:NWYIZDON

pith:2011:NWYIZDONVDGNFZDT44ENZLHF4R

not attested not anchored not stored refs pending

Planar and Poly-Arc Lombardi Drawings

Christian A. Duncan, David Eppstein, Maarten L\"offler, Michael T. Goodrich, Stephen G. Kobourov

arxiv:1109.0345 v1 · 2011-09-02 · 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{NWYIZDONVDGNFZDT44ENZLHF4R}

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	2026-05-18T00:06:21.237126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6db08c8dcda8ccd2e473e708dcace5e474763f4e569933ead51a509b53c57680

Aliases

arxiv: 1109.0345 · arxiv_version: 1109.0345v1 · doi: 10.48550/arxiv.1109.0345 · pith_short_12: NWYIZDONVDGN · pith_short_16: NWYIZDONVDGNFZDT · pith_short_8: NWYIZDON

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/NWYIZDONVDGNFZDT44ENZLHF4R \
  | 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: 6db08c8dcda8ccd2e473e708dcace5e474763f4e569933ead51a509b53c57680

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "541f61f5e3d1adb995c81abbaa1c93793f6da391003c3e2b89c26214d726395b",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2011-09-02T03:00:29Z",
    "title_canon_sha256": "6136bf88570ab7c90fd834cfe4213145e882b56774c9e7e095242ce4499086b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0345",
    "kind": "arxiv",
    "version": 1
  }
}