Pith Number

pith:OBESVGPD

pith:2015:OBESVGPDVMB5I37XQ2UQ34CZUS

not attested not anchored not stored refs pending

On Polynomial Chaos Expansion via Gradient-enhanced $\ell_1$-minimization

Alireza Doostan, Jerrad Hampton, Ji Peng

arxiv:1506.00343 v1 · 2015-06-01 · stat.CO · 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{OBESVGPDVMB5I37XQ2UQ34CZUS}

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	2026-05-18T01:18:44.801785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70492a99e3ab03d46ff786a90df059a48b75ad09e53f5e614200bdf1f3c93fdb

Aliases

arxiv: 1506.00343 · arxiv_version: 1506.00343v1 · doi: 10.48550/arxiv.1506.00343 · pith_short_12: OBESVGPDVMB5 · pith_short_16: OBESVGPDVMB5I37X · pith_short_8: OBESVGPD

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/OBESVGPDVMB5I37XQ2UQ34CZUS \
  | 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: 70492a99e3ab03d46ff786a90df059a48b75ad09e53f5e614200bdf1f3c93fdb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c472eb34899bf0906b589fb154185fa2f263ca4cd0d7310c6de12c5edd78af36",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2015-06-01T04:08:56Z",
    "title_canon_sha256": "627c21aa7e7ab0f71bfe11e4517ecc36f172337c482d209c5252e17466c23adf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.00343",
    "kind": "arxiv",
    "version": 1
  }
}