Pith Number

pith:7QQR2VYF

pith:2012:7QQR2VYFOPAKRKY2AD4BLAWODA

not attested not anchored not stored refs pending

A Characterization of Reduced Forms of Linear Differential Systems

Ainhoa Aparicio-Monforte, Elie Compoint, Jacques-Arthur Weil

arxiv:1206.6661 v2 · 2012-06-28 · math.CA · cs.SC · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7QQR2VYFOPAKRKY2AD4BLAWODA}

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	2026-05-18T03:42:44.161589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc211d570573c0a8ab1a00f81582ce1811a64080be461d0e0dc7262f964706a7

Aliases

arxiv: 1206.6661 · arxiv_version: 1206.6661v2 · doi: 10.48550/arxiv.1206.6661 · pith_short_12: 7QQR2VYFOPAK · pith_short_16: 7QQR2VYFOPAKRKY2 · pith_short_8: 7QQR2VYF

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/7QQR2VYFOPAKRKY2AD4BLAWODA \
  | 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: fc211d570573c0a8ab1a00f81582ce1811a64080be461d0e0dc7262f964706a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fff7c222085859b32971d4f7ad771efc37ec28d74d6dfc552c2f7834cf2fc4b",
    "cross_cats_sorted": [
      "cs.SC",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2012-06-28T12:36:24Z",
    "title_canon_sha256": "1730b21b4e742d94a2b9e180a0fc10cc80c425b25f94e0fd48118cfece39eb72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.6661",
    "kind": "arxiv",
    "version": 2
  }
}