Pith Number

pith:FUJWFFZD

pith:2011:FUJWFFZDHBF6WPWFMEI5OC6P4Z

not attested not anchored not stored refs pending

Memory-Constrained Algorithms for Simple Polygons

Andr\'e Schulz, G\"unter Rote, Kevin Buchin, Maike Buchin, Matias Korman, Tetsuo Asano, Wolfgang Mulzer

arxiv:1112.5904 v2 · 2011-12-27 · 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{FUJWFFZDHBF6WPWFMEI5OC6P4Z}

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	2026-05-18T03:21:08.716288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d13629723384beb3ec56111d70bcfe64998cac9a773603d2ce5a1badbfe8fcd

Aliases

arxiv: 1112.5904 · arxiv_version: 1112.5904v2 · doi: 10.48550/arxiv.1112.5904 · pith_short_12: FUJWFFZDHBF6 · pith_short_16: FUJWFFZDHBF6WPWF · pith_short_8: FUJWFFZD

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/FUJWFFZDHBF6WPWFMEI5OC6P4Z \
  | 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: 2d13629723384beb3ec56111d70bcfe64998cac9a773603d2ce5a1badbfe8fcd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22a993a2c607e6094d8a8ab4bf76e91617097ec664be70f95f96f087b493af67",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2011-12-27T00:44:55Z",
    "title_canon_sha256": "6668c67189b5e61d2b394766cd71625469f460f0c2469965ceafa475889eeac3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.5904",
    "kind": "arxiv",
    "version": 2
  }
}