Pith Number

pith:2A44LDZS

pith:2019:2A44LDZS4GTTFQ7APH3QKGQMDG

not attested not anchored not stored refs pending

Near-optimal sampling strategies for multivariate function approximation on general domains

Ben Adcock, Juan M. Cardenas

arxiv:1908.01249 v2 · 2019-08-04 · math.NA · cs.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{2A44LDZS4GTTFQ7APH3QKGQMDG}

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	2026-07-05T00:26:09.551244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d039c58f32e1a732c3e079f7051a0c19968661ded0835cd5613a4a22c4e497ea

Aliases

arxiv: 1908.01249 · arxiv_version: 1908.01249v2 · doi: 10.48550/arxiv.1908.01249 · pith_short_12: 2A44LDZS4GTT · pith_short_16: 2A44LDZS4GTTFQ7A · pith_short_8: 2A44LDZS

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/2A44LDZS4GTTFQ7APH3QKGQMDG \
  | 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: d039c58f32e1a732c3e079f7051a0c19968661ded0835cd5613a4a22c4e497ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6421715d1b0ac2daafabfa70120f837e4fddf2b4558aed281ee090c4f21af31a",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-08-04T00:29:21Z",
    "title_canon_sha256": "14ae4fc9a68b1ef99e5a8e6388da14e4de8d0e5072dec1af21f2f08b0bfb8c36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.01249",
    "kind": "arxiv",
    "version": 2
  }
}