Pith Number

pith:YRHLKX6R

pith:2014:YRHLKX6RR2SBMCOEEQMUIWZGFP

not attested not anchored not stored refs pending

Poincar\'e problem for weighted projective foliations

A. M. Rodr\'iguez, F. E. Brochero Mart\'inez, Maur\'icio Corr\^ea Jr

arxiv:1406.4160 v2 · 2014-06-16 · 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{YRHLKX6RR2SBMCOEEQMUIWZGFP}

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	2026-05-18T00:03:34.678658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c44eb55fd18ea41609c42419445b262bfdbdec2e9095fe0a1288ee105321ea1a

Aliases

arxiv: 1406.4160 · arxiv_version: 1406.4160v2 · doi: 10.48550/arxiv.1406.4160 · pith_short_12: YRHLKX6RR2SB · pith_short_16: YRHLKX6RR2SBMCOE · pith_short_8: YRHLKX6R

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/YRHLKX6RR2SBMCOEEQMUIWZGFP \
  | 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: c44eb55fd18ea41609c42419445b262bfdbdec2e9095fe0a1288ee105321ea1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02bb3dd371223ddfa761467c356372435880fb5115204abe879739dfb9a2683c",
    "cross_cats_sorted": [
      "math.CV",
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-06-16T20:22:55Z",
    "title_canon_sha256": "099060d2567ab5a84346698a80339e497fd88b74822f19c78ac3687a732294d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.4160",
    "kind": "arxiv",
    "version": 2
  }
}