Pith Number

pith:EYYUQ237

pith:2015:EYYUQ237YBXER2HSBNI2OM5BYY

not attested not anchored not stored refs pending

Galoisian Methods for Testing Irreducibility of Order Two Nonlinear Differential Equations

Guy Casale, Jacques-Arthur Weil

arxiv:1504.08134 v1 · 2015-04-30 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EYYUQ237YBXER2HSBNI2OM5BYY}

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	2026-05-17T23:57:36.893592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2631486b7fc06e48e8f20b51a733a1c60a922452a6ba4ac4e91541764184d657

Aliases

arxiv: 1504.08134 · arxiv_version: 1504.08134v1 · doi: 10.48550/arxiv.1504.08134 · pith_short_12: EYYUQ237YBXE · pith_short_16: EYYUQ237YBXER2HS · pith_short_8: EYYUQ237

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/EYYUQ237YBXER2HSBNI2OM5BYY \
  | 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: 2631486b7fc06e48e8f20b51a733a1c60a922452a6ba4ac4e91541764184d657

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af1b852ad8e51d1cfeb718ebf50c4efa39e58ca390bc45e24ed42485855b50a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2015-04-30T09:24:13Z",
    "title_canon_sha256": "5aca96299252bd9dd9ce1afb89d23c6ea3903ac661c74c809491308673a7297b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.08134",
    "kind": "arxiv",
    "version": 1
  }
}