Pith Number

pith:YMWMK53X

pith:2014:YMWMK53XGDD4XNDKSG4Z7RCFTO

not attested not anchored not stored refs pending

Higher codimensional foliations and Kupka singularities

Arturo Fern\'andez-P\'erez, Maur\'icio Corr\^ea Jr, Omegar Calvo-Andrade

arxiv:1408.7020 v1 · 2014-08-29 · math.AG · math.CV · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YMWMK53XGDD4XNDKSG4Z7RCFTO}

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	2026-05-18T00:03:37.671005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c32cc5777730c7cbb46a91b99fc4459b9f4e7890e3bf408dcc5da98c3d08cd1f

Aliases

arxiv: 1408.7020 · arxiv_version: 1408.7020v1 · doi: 10.48550/arxiv.1408.7020 · pith_short_12: YMWMK53XGDD4 · pith_short_16: YMWMK53XGDD4XNDK · pith_short_8: YMWMK53X

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/YMWMK53XGDD4XNDKSG4Z7RCFTO \
  | 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: c32cc5777730c7cbb46a91b99fc4459b9f4e7890e3bf408dcc5da98c3d08cd1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fa4d6ef793e5eae012e2590ad98306557b89a7a460465387fef092949046b39",
    "cross_cats_sorted": [
      "math.CV",
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-08-29T13:52:08Z",
    "title_canon_sha256": "69c8f9c958f0d4703a61e95bd1d30e38d81bbb17998e633d3a9075d3b4692343"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.7020",
    "kind": "arxiv",
    "version": 1
  }
}