Pith Number

pith:RP7FL2TL

pith:2009:RP7FL2TLY472L7MWP2XN4FFF3A

not attested not anchored not stored refs pending

Eignets for function approximation on manifolds

H. N. Mhaskar

arxiv:0909.5000 v1 · 2009-09-28 · cs.LG · cs.NA · cs.NE · 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{RP7FL2TLY472L7MWP2XN4FFF3A}

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	2026-06-03T23:06:29.215263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8bfe55ea6bc73fa5fd967eaede14a5d810c025d2808d279eddceb95c85672c4a

Aliases

arxiv: 0909.5000 · arxiv_version: 0909.5000v1 · doi: 10.48550/arxiv.0909.5000 · pith_short_12: RP7FL2TLY472 · pith_short_16: RP7FL2TLY472L7MW · pith_short_8: RP7FL2TL

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/RP7FL2TLY472L7MWP2XN4FFF3A \
  | 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: 8bfe55ea6bc73fa5fd967eaede14a5d810c025d2808d279eddceb95c85672c4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a51b280d2ced4d98b8f9f3bb6b0bae3645d7a66300a40bf8b278865ed21e5f1d",
    "cross_cats_sorted": [
      "cs.NA",
      "cs.NE",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2009-09-28T04:25:03Z",
    "title_canon_sha256": "5b87db7b9f2c2b9f39a61d5a4553e13d9a890d6da9a4f0443e0c5bc3934ce611"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5000",
    "kind": "arxiv",
    "version": 1
  }
}