Pith Number

pith:7BKDJQEK

pith:2016:7BKDJQEKWOTMDZQONJXUXRVM33

not attested not anchored not stored refs pending

Ortho-polygon Visibility Representations of Embedded Graphs

Emilio Di Giacomo, Fabrizio Montecchiani, Giuseppe Liotta, Henk Meijer, Stephen K. Wismath, Walter Didimo, William S. Evans

arxiv:1604.08797 v3 · 2016-04-29 · 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{7BKDJQEKWOTMDZQONJXUXRVM33}

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	2026-05-18T00:44:24.756598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f85434c08ab3a6c1e60e6a6f4bc6acdedb2db00ecda0b3a7bba7596d474eae7a

Aliases

arxiv: 1604.08797 · arxiv_version: 1604.08797v3 · doi: 10.48550/arxiv.1604.08797 · pith_short_12: 7BKDJQEKWOTM · pith_short_16: 7BKDJQEKWOTMDZQO · pith_short_8: 7BKDJQEK

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/7BKDJQEKWOTMDZQONJXUXRVM33 \
  | 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: f85434c08ab3a6c1e60e6a6f4bc6acdedb2db00ecda0b3a7bba7596d474eae7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f941d37644cf199f1e0e499a54090a40d23ca58feb5aa42e93bf05cb4cf092f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2016-04-29T12:35:54Z",
    "title_canon_sha256": "d71707cb3881cb1eb197b3ceeb6192dac172bf01b065b29a77b1fe3bb234e2f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08797",
    "kind": "arxiv",
    "version": 3
  }
}