Pith Number

pith:UV22ETLE

pith:2009:UV22ETLEAD7DVJGHBWWLBI5IMW

not attested not anchored not stored refs pending

Embedding into the rectilinear plane in optimal O*(n^2)

Nicolas Catusse, Victor Chepoi, Yann Vax\`es

arxiv:0910.1059 v1 · 2009-10-06 · cs.CG · 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{UV22ETLEAD7DVJGHBWWLBI5IMW}

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	2026-05-18T04:18:45.180097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a575a24d6400fe3aa4c70dacb0a3a865b9819f66bb2cef7eae2ef89ad267fb61

Aliases

arxiv: 0910.1059 · arxiv_version: 0910.1059v1 · doi: 10.48550/arxiv.0910.1059 · pith_short_12: UV22ETLEAD7D · pith_short_16: UV22ETLEAD7DVJGH · pith_short_8: UV22ETLE

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/UV22ETLEAD7DVJGHBWWLBI5IMW \
  | 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: a575a24d6400fe3aa4c70dacb0a3a865b9819f66bb2cef7eae2ef89ad267fb61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f79a3522ece9bd8a8d37e893018c8bdfd7930bdb8791e5ab1956b8292abb1e99",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2009-10-06T17:25:59Z",
    "title_canon_sha256": "f44dfa1759dc5d35cfd5ae13438c131abe97a973c2cc10edd19ae8bad820d1ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1059",
    "kind": "arxiv",
    "version": 1
  }
}