Pith Number

pith:5IHZCIUH

pith:2011:5IHZCIUHCGXLLWCHV67TYO7SEC

not attested not anchored not stored refs pending

Computing Cartograms with Optimal Complexity

Md. Jawaherul Alam, Michael Kaufmann, Stefan Felsner, Stephen G. Kobourov, Therese Biedl, Torsten Ueckerdt

arxiv:1201.0066 v1 · 2011-12-30 · cs.DM · 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{5IHZCIUHCGXLLWCHV67TYO7SEC}

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	2026-05-18T04:05:16.391955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea0f91228711aeb5d847afbf3c3bf220a98d7acbb053e91bc18331ae15300802

Aliases

arxiv: 1201.0066 · arxiv_version: 1201.0066v1 · doi: 10.48550/arxiv.1201.0066 · pith_short_12: 5IHZCIUHCGXL · pith_short_16: 5IHZCIUHCGXLLWCH · pith_short_8: 5IHZCIUH

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/5IHZCIUHCGXLLWCHV67TYO7SEC \
  | 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: ea0f91228711aeb5d847afbf3c3bf220a98d7acbb053e91bc18331ae15300802

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d336d63384cc4ceb72b0b437d9281d7aa4244f12ef955dae9799f7037bce0af",
    "cross_cats_sorted": [
      "cs.CG",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2011-12-30T05:44:30Z",
    "title_canon_sha256": "3d30d6e78ead69c6fa3e736fccd5846de61ffc3b424bfaa88a091db0a53042db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0066",
    "kind": "arxiv",
    "version": 1
  }
}