Pith Number

pith:X4LY5UFE

pith:2015:X4LY5UFEEKJ4CFUU6BSVYNODVE

not attested not anchored not stored refs pending

On the generalized Nash problem for smooth germs and adjacencies of curve singularities

Javier Fernandez de Bobadilla, Maria Pe Pereira, Patrick Popescu-Pampu

arxiv:1501.06898 v3 · 2015-01-27 · math.AG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X4LY5UFEEKJ4CFUU6BSVYNODVE}

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	2026-05-18T00:33:37.204306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf178ed0a42293c11694f0655c35c3a91cf00600d2afbe7730687953886a8296

Aliases

arxiv: 1501.06898 · arxiv_version: 1501.06898v3 · doi: 10.48550/arxiv.1501.06898 · pith_short_12: X4LY5UFEEKJ4 · pith_short_16: X4LY5UFEEKJ4CFUU · pith_short_8: X4LY5UFE

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/X4LY5UFEEKJ4CFUU6BSVYNODVE \
  | 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: bf178ed0a42293c11694f0655c35c3a91cf00600d2afbe7730687953886a8296

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a20f58c75cc7a8c78266cd4d6b6a58a0fa12553e68668f1478bb99c2bff254e",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-01-27T20:40:19Z",
    "title_canon_sha256": "c1f835e637dfb9362189058c2db979163936abf3d08fcb507a4d680ced067904"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.06898",
    "kind": "arxiv",
    "version": 3
  }
}