Pith Number

pith:OSWNXJKR

pith:2016:OSWNXJKRTCMDCPNGWBLE6B3CDL

not attested not anchored not stored refs pending

Recognizing Optimal 1-Planar Graphs in Linear Time

Franz J. Brandenburg

arxiv:1602.08022 v1 · 2016-02-25 · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OSWNXJKRTCMDCPNGWBLE6B3CDL}

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	2026-05-18T00:25:12.038567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74acdba5519898313da6b0564f07621ad4e2809531ac7c7f3a3f83de79396310

Aliases

arxiv: 1602.08022 · arxiv_version: 1602.08022v1 · doi: 10.48550/arxiv.1602.08022 · pith_short_12: OSWNXJKRTCMD · pith_short_16: OSWNXJKRTCMDCPNG · pith_short_8: OSWNXJKR

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/OSWNXJKRTCMDCPNGWBLE6B3CDL \
  | 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: 74acdba5519898313da6b0564f07621ad4e2809531ac7c7f3a3f83de79396310

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10cc6068a6e6c0d1d53e39666fdbecacd633e0fb7b44cdd601fbb3f8e4b1505e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2016-02-25T18:16:01Z",
    "title_canon_sha256": "41afdb4bfe0b84a0b2819aeedccb8604f5f2055671a1da9af4d8e4796285ce4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.08022",
    "kind": "arxiv",
    "version": 1
  }
}