Pith Number

pith:KU3DL2CC

pith:2018:KU3DL2CCNQC2G7BJCEOASB2XGA

not attested not anchored not stored refs pending

Least-Squares Pad\'e approximation of parametric and stochastic Helmholtz maps

Davide Pradovera, Fabio Nobile, Francesca Bonizzoni, Ilaria Perugia

arxiv:1805.05031 v2 · 2018-05-14 · 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{KU3DL2CCNQC2G7BJCEOASB2XGA}

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	2026-05-18T00:13:57.514734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

553635e8426c05a37c29111c0907573000b0778639fc94e0e8dbc81b1c0dcc1f

Aliases

arxiv: 1805.05031 · arxiv_version: 1805.05031v2 · doi: 10.48550/arxiv.1805.05031 · pith_short_12: KU3DL2CCNQC2 · pith_short_16: KU3DL2CCNQC2G7BJ · pith_short_8: KU3DL2CC

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/KU3DL2CCNQC2G7BJCEOASB2XGA \
  | 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: 553635e8426c05a37c29111c0907573000b0778639fc94e0e8dbc81b1c0dcc1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7002074609b962795c52e8d2439025ede08c716e2d101f75e91e15285fcb403",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-05-14T07:26:13Z",
    "title_canon_sha256": "835a2bf9f65f24c17cfed99320e8a4102a725a1e7a8fa0066d36fbd4fd96ac62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.05031",
    "kind": "arxiv",
    "version": 2
  }
}