Pith Number

pith:27SWCQQZ

pith:2014:27SWCQQZRAGIKHATVBDZWZ2MAS

not attested not anchored not stored refs pending

A Comparison and Evaluation of Map Construction Algorithms

Carola Wenk, Dieter Pfoser, Mahmuda Ahmed, Sophia Karagiorgou

arxiv:1402.5138 v2 · 2014-02-19 · 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{27SWCQQZRAGIKHATVBDZWZ2MAS}

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	2026-05-18T02:34:52.479503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7e5614219880c851c13a8479b674c04b3329613b1bc5b357d2c494cc2583710

Aliases

arxiv: 1402.5138 · arxiv_version: 1402.5138v2 · doi: 10.48550/arxiv.1402.5138 · pith_short_12: 27SWCQQZRAGI · pith_short_16: 27SWCQQZRAGIKHAT · pith_short_8: 27SWCQQZ

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/27SWCQQZRAGIKHATVBDZWZ2MAS \
  | 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: d7e5614219880c851c13a8479b674c04b3329613b1bc5b357d2c494cc2583710

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbb04a94f093bdd4dedeea063aca8792186c1fd39558a32faba2f3f39d1d2b2b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2014-02-19T21:50:39Z",
    "title_canon_sha256": "020de7d5ba91390775fb40f30defa8ddff5d137a7a5271c042e168238d5a3583"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.5138",
    "kind": "arxiv",
    "version": 2
  }
}