Pith Number

pith:4JWFCNPE

pith:2018:4JWFCNPETATQSAW5JLI2CCIS5O

not attested not anchored not stored refs pending

Algebraic separatrices for non-dicritical foliations on projective spaces of dimension at least four

Jorge Vitorio Pereira

arxiv:1801.03280 v1 · 2018-01-10 · math.AG · math.CA · 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{4JWFCNPETATQSAW5JLI2CCIS5O}

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	2026-05-18T00:26:17.529853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e26c5135e498270902dd4ad1a10912eb983391f160037ede075f57324ccd56a6

Aliases

arxiv: 1801.03280 · arxiv_version: 1801.03280v1 · doi: 10.48550/arxiv.1801.03280 · pith_short_12: 4JWFCNPETATQ · pith_short_16: 4JWFCNPETATQSAW5 · pith_short_8: 4JWFCNPE

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/4JWFCNPETATQSAW5JLI2CCIS5O \
  | 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: e26c5135e498270902dd4ad1a10912eb983391f160037ede075f57324ccd56a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f41d3824e3d26f25bd2c3dbb95d40dfda8f1222e5effabd4d9f912d3355063c3",
    "cross_cats_sorted": [
      "math.CA",
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-01-10T09:37:03Z",
    "title_canon_sha256": "3a8cc8b90d06d949ecb1dc93b1422bbdf3ac14cbc812cbad609cb4903abb6e42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.03280",
    "kind": "arxiv",
    "version": 1
  }
}