Pith Number

pith:WZJ2WRLQ

pith:2018:WZJ2WRLQO4EDPRMDEE2VIMSYJY

not attested not anchored not stored refs pending

On the computation of Darboux first integrals of a class of planar polynomial vector fields

A. Ferragut, C. Galindo, F. Monserrat

arxiv:1808.03512 v1 · 2018-08-10 · 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{WZJ2WRLQO4EDPRMDEE2VIMSYJY}

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	2026-05-18T00:08:24.823709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b653ab4570770837c58321355432584e2ec881db31a8587577e9ee289f31ee5f

Aliases

arxiv: 1808.03512 · arxiv_version: 1808.03512v1 · doi: 10.48550/arxiv.1808.03512 · pith_short_12: WZJ2WRLQO4ED · pith_short_16: WZJ2WRLQO4EDPRMD · pith_short_8: WZJ2WRLQ

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/WZJ2WRLQO4EDPRMDEE2VIMSYJY \
  | 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: b653ab4570770837c58321355432584e2ec881db31a8587577e9ee289f31ee5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e51d7809175437c58704746e737769c7ba74194432e5d73dc893103d1639f562",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2018-08-10T12:44:17Z",
    "title_canon_sha256": "cb9c88974c32ba95a78a54fb38df7bf11d500bd2a2c2067b34e9bafac1e7676c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.03512",
    "kind": "arxiv",
    "version": 1
  }
}