Pith Number

pith:P2FISNVS

pith:2019:P2FISNVSHXI3G3ZT6ZHAC5E7NJ

not attested not anchored not stored refs pending

Dynamic Planar Convex Hull

Gerth St{\o}lting Brodal, Riko Jacob

arxiv:1902.11169 v1 · 2019-02-28 · cs.CG · cs.CC · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P2FISNVSHXI3G3ZT6ZHAC5E7NJ}

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	2026-05-17T23:52:25.568936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e8a8936b23dd1b36f33f64e01749f6a4eccc2f635775234558868057c32fe40

Aliases

arxiv: 1902.11169 · arxiv_version: 1902.11169v1 · doi: 10.48550/arxiv.1902.11169 · pith_short_12: P2FISNVSHXI3 · pith_short_16: P2FISNVSHXI3G3ZT · pith_short_8: P2FISNVS

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/P2FISNVSHXI3G3ZT6ZHAC5E7NJ \
  | 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: 7e8a8936b23dd1b36f33f64e01749f6a4eccc2f635775234558868057c32fe40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a66aa57453e1dc4149f4292772d0095223cf9aaa827e090ac9953eaa1fbe0fb5",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-02-28T15:49:06Z",
    "title_canon_sha256": "82d6110aae43655638437cffb767334ae2024b4a726a6a4fbfcbd69a7fa1b0f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.11169",
    "kind": "arxiv",
    "version": 1
  }
}