Pith Number

pith:DW3HQGEE

pith:2018:DW3HQGEE6Z3BTB3RLVORCTYAMY

not attested not anchored not stored refs pending

Greedy Kernel Methods for Center Manifold Approximation

Bernard Haasdonk, Boumediene Hamzi, Dominik Wittwar, Gabriele Santin

arxiv:1810.11329 v2 · 2018-10-26 · math.DS · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DW3HQGEE6Z3BTB3RLVORCTYAMY}

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	2026-06-04T20:13:32.923386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1db6781884f6761987715d5d114f00660f48eda5831373ef83148255335469ea

Aliases

arxiv: 1810.11329 · arxiv_version: 1810.11329v2 · doi: 10.48550/arxiv.1810.11329 · pith_short_12: DW3HQGEE6Z3B · pith_short_16: DW3HQGEE6Z3BTB3R · pith_short_8: DW3HQGEE

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/DW3HQGEE6Z3BTB3RLVORCTYAMY \
  | 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: 1db6781884f6761987715d5d114f00660f48eda5831373ef83148255335469ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b344cc936eb12d7531227789138f628fdf917b6388ca69e6224af42266818487",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2018-10-26T13:54:38Z",
    "title_canon_sha256": "df334334b5b2c13c2bfeccc2169f47dd1bea23ec4743e5fec37c3e8d94167906"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.11329",
    "kind": "arxiv",
    "version": 2
  }
}