Pith Number

pith:DDEP23QL

pith:2013:DDEP23QLZOOSUYKSUODI7Z37M7

not attested not anchored not stored refs pending

Pencil type line arrangements of low degree: classification and monodromy

Alexandru Dimca, Daniela Anca Macinic, Denis Ibadula

arxiv:1305.5092 v3 · 2013-05-22 · math.AG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DDEP23QLZOOSUYKSUODI7Z37M7}

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	2026-05-18T03:17:35.287306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18c8fd6e0bcb9d2a6152a3868fe77f67d6462bb729ed56a737c3856f979c8b1e

Aliases

arxiv: 1305.5092 · arxiv_version: 1305.5092v3 · doi: 10.48550/arxiv.1305.5092 · pith_short_12: DDEP23QLZOOS · pith_short_16: DDEP23QLZOOSUYKS · pith_short_8: DDEP23QL

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/DDEP23QLZOOSUYKSUODI7Z37M7 \
  | 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: 18c8fd6e0bcb9d2a6152a3868fe77f67d6462bb729ed56a737c3856f979c8b1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96146f49f7d8619a2792d6bb734fa639110a3ca18bac0759e5e8fbcad05da7de",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-05-22T11:35:55Z",
    "title_canon_sha256": "25805cad6aae0ac9990916c7c20e77ae30ec51f23d0c1c0dcefe9de89e37da5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.5092",
    "kind": "arxiv",
    "version": 3
  }
}