Pith Number

pith:ZIWKNCSC

pith:2012:ZIWKNCSCMYZMIJOZYDU5BUHZPM

not attested not anchored not stored refs pending

Kernel Methods for the Approximation of Some Key Quantities of Nonlinear Systems

Boumediene Hamzi, Jake Bouvrie

arxiv:1204.0563 v2 · 2012-04-03 · math.OC · math.DS · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZIWKNCSCMYZMIJOZYDU5BUHZPM}

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	2026-05-18T01:17:57.647482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca2ca68a426632c425d9c0e9d0d0f97b361c957a803801b6ee3bb25c9939074f

Aliases

arxiv: 1204.0563 · arxiv_version: 1204.0563v2 · doi: 10.48550/arxiv.1204.0563 · pith_short_12: ZIWKNCSCMYZM · pith_short_16: ZIWKNCSCMYZMIJOZ · pith_short_8: ZIWKNCSC

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/ZIWKNCSCMYZMIJOZYDU5BUHZPM \
  | 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: ca2ca68a426632c425d9c0e9d0d0f97b361c957a803801b6ee3bb25c9939074f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80965035238077b458a5af516aa1b55f9c5c58be2c66bb893e8b332fc11e9846",
    "cross_cats_sorted": [
      "math.DS",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-04-03T00:21:14Z",
    "title_canon_sha256": "033dcd05165983c2cf7816472338b9739209f6562e2d0fa860c7501db04c5740"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0563",
    "kind": "arxiv",
    "version": 2
  }
}