Pith Number

pith:DF7ECBKB

pith:2018:DF7ECBKBBSM4ENDKYUHXE6TACD

not attested not anchored not stored refs pending

Optimal Morphs of Planar Orthogonal Drawings

Arthur van Goethem, Kevin Verbeek

arxiv:1801.02455 v2 · 2018-01-08 · 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{DF7ECBKBBSM4ENDKYUHXE6TACD}

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	2026-05-18T00:20:44.156496Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

197e4105410c99c2346ac50f727a6010c2e821bdf65549c2403ec3a776a113ef

Aliases

arxiv: 1801.02455 · arxiv_version: 1801.02455v2 · doi: 10.48550/arxiv.1801.02455 · pith_short_12: DF7ECBKBBSM4 · pith_short_16: DF7ECBKBBSM4ENDK · pith_short_8: DF7ECBKB

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/DF7ECBKBBSM4ENDKYUHXE6TACD \
  | 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: 197e4105410c99c2346ac50f727a6010c2e821bdf65549c2403ec3a776a113ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8817f98a7da9b55ef51879258882b64ca50155080ba2c78e1febd13a407cd90",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-01-08T14:53:52Z",
    "title_canon_sha256": "ded2f1cb39f4dd38c1664b6a0c8526d51fc0fefe9196482116c8c382d05a96e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02455",
    "kind": "arxiv",
    "version": 2
  }
}