Pith Number

pith:AX4U5HZB

pith:2019:AX4U5HZBUF57AHZINLRGBAUJTW

not attested not anchored not stored refs pending

4-Connected Triangulations on Few Lines

Stefan Felsner

arxiv:1908.04524 v2 · 2019-08-13 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AX4U5HZBUF57AHZINLRGBAUJTW}

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.

Cited by

1 paper in Pith

Line and Plane Cover Numbers Revisited

Receipt and verification

First computed	2026-07-04T23:55:56.939158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05f94e9f21a17bf01f286ae26082899db701e2fd126e3cc79b01969264d56cdb

Aliases

arxiv: 1908.04524 · arxiv_version: 1908.04524v2 · doi: 10.48550/arxiv.1908.04524 · pith_short_12: AX4U5HZBUF57 · pith_short_16: AX4U5HZBUF57AHZI · pith_short_8: AX4U5HZB

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/AX4U5HZBUF57AHZINLRGBAUJTW \
  | 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: 05f94e9f21a17bf01f286ae26082899db701e2fd126e3cc79b01969264d56cdb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "719f7a4cd3c3238458eecc0a058bea5cbb63057c3803b8f8a9577c3e778ca927",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-08-13T07:39:08Z",
    "title_canon_sha256": "7b67357b26c6308b09788d9ebb61566f5dda4399f3940609f9c111725067b113"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04524",
    "kind": "arxiv",
    "version": 2
  }
}