Pith Number

pith:3Q4UIOR2

pith:2026:3Q4UIOR2VELXNTQIUXKN25IXXY

not attested not anchored not stored refs pending

Enumeration and Classification of Triangle-Maximal Pseudoline Arrangements

Denis Utkin, Roman Parpalak

arxiv:2607.29236 v1 · 2026-07-31 · math.CO · 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{3Q4UIOR2VELXNTQIUXKN25IXXY}

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	2026-08-03T01:22:25.318449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc39443a3aa91776ce08a5d4dd7517be0241a6ae96cb107c1d86a9f242a4c6a0

Aliases

arxiv: 2607.29236 · arxiv_version: 2607.29236v1 · doi: 10.48550/arxiv.2607.29236 · pith_short_12: 3Q4UIOR2VELX · pith_short_16: 3Q4UIOR2VELXNTQI · pith_short_8: 3Q4UIOR2

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/3Q4UIOR2VELXNTQIUXKN25IXXY \
  | 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: dc39443a3aa91776ce08a5d4dd7517be0241a6ae96cb107c1d86a9f242a4c6a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29a2c82fb3a595ecec528cf408b5554d2993a34eebf7fcecdfe88957dd5de2a7",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-07-31T10:12:24Z",
    "title_canon_sha256": "20a6f8711d3b363cb93db1e06b36ecf5262d7a3f9e0a1fb0cbec282afea8e2f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.29236",
    "kind": "arxiv",
    "version": 1
  }
}