Pith Number

pith:HDWDO6RE

pith:2017:HDWDO6REGF3G7G2GZVXP6XX25N

not attested not anchored not stored refs pending

A Least Squares Radial Basis Function Partition of Unity Method for Solving PDEs

Alfa Heryudono, Elisabeth Larsson, Victor Shcherbakov

arxiv:1702.07148 v1 · 2017-02-23 · 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{HDWDO6REGF3G7G2GZVXP6XX25N}

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	2026-05-18T00:50:08.115934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38ec377a2431766f9b46cd6eff5efaeb440cf438621d8717063923553e236123

Aliases

arxiv: 1702.07148 · arxiv_version: 1702.07148v1 · doi: 10.48550/arxiv.1702.07148 · pith_short_12: HDWDO6REGF3G · pith_short_16: HDWDO6REGF3G7G2G · pith_short_8: HDWDO6RE

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/HDWDO6REGF3G7G2GZVXP6XX25N \
  | 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: 38ec377a2431766f9b46cd6eff5efaeb440cf438621d8717063923553e236123

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b25174390c1c58f4d20dce59b035310f0eb23df744eee7b430d72353249efa4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-02-23T09:39:56Z",
    "title_canon_sha256": "058133ceba15b1bb2b29ac281e22fb58e8067d5e28f87c0c842c7c92953395f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07148",
    "kind": "arxiv",
    "version": 1
  }
}