Pith Number

pith:CMXEDMPD

pith:2019:CMXEDMPDUYWNTS5NF5MNNQI6FI

not attested not anchored not stored refs pending

Sketched Representations and Orthogonal Planarity of Bounded Treewidth Graphs

Emilio Di Giacomo, Fabrizio Montecchiani, Giuseppe Liotta

arxiv:1908.05015 v1 · 2019-08-14 · 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{CMXEDMPDUYWNTS5NF5MNNQI6FI}

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	2026-07-04T23:55:59.162326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

132e41b1e3a62cd9cbad2f58d6c11e2a36d0afc7266d4051e986073d48d89eaf

Aliases

arxiv: 1908.05015 · arxiv_version: 1908.05015v1 · doi: 10.48550/arxiv.1908.05015 · pith_short_12: CMXEDMPDUYWN · pith_short_16: CMXEDMPDUYWNTS5N · pith_short_8: CMXEDMPD

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/CMXEDMPDUYWNTS5NF5MNNQI6FI \
  | 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: 132e41b1e3a62cd9cbad2f58d6c11e2a36d0afc7266d4051e986073d48d89eaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57ee8f8b278238f3f58ddaa29994db7c2b4d409f9d7a72e756544807c54a889c",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2019-08-14T08:33:55Z",
    "title_canon_sha256": "7ea15aa4bd4cea01a3edf21d7155352775278e77cbfb2bd271bd2ec86e542540"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05015",
    "kind": "arxiv",
    "version": 1
  }
}