Pith Number

pith:NHEMDO44

pith:2013:NHEMDO44KOTPUYMNOVDBUCDFQR

not attested not anchored not stored refs pending

Difference Galois theory of linear differential equations

Charlotte Hardouin, Lucia Di Vizio, Michael Wibmer

arxiv:1302.7198 v2 · 2013-02-28 · math.AC · math.AG · math.DS · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NHEMDO44KOTPUYMNOVDBUCDFQR}

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	2026-05-18T02:54:21.570863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69c8c1bb9c53a6fa618d75461a08658443f567988fecb7a132c2e1493ba29be3

Aliases

arxiv: 1302.7198 · arxiv_version: 1302.7198v2 · doi: 10.48550/arxiv.1302.7198 · pith_short_12: NHEMDO44KOTP · pith_short_16: NHEMDO44KOTPUYMN · pith_short_8: NHEMDO44

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/NHEMDO44KOTPUYMNOVDBUCDFQR \
  | 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: 69c8c1bb9c53a6fa618d75461a08658443f567988fecb7a132c2e1493ba29be3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1831d28dd90f421ccbd62194b8960909fecbadf1b84af6f030e877ea0e97c12",
    "cross_cats_sorted": [
      "math.AG",
      "math.DS",
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2013-02-28T14:06:59Z",
    "title_canon_sha256": "523a77a6084a6416837b95735f8ff78099fed7507605f3003c181d13d56be6ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.7198",
    "kind": "arxiv",
    "version": 2
  }
}