Pith Number

pith:66IPQAZD

pith:2017:66IPQAZD4UIOYDFE24GMJFUJRA

not attested not anchored not stored refs pending

Compressive Sensing with Cross-Validation and Stop-Sampling for Sparse Polynomial Chaos Expansions

Cosmin Safta, Guilhem Lacaze, Habib N. Najm, Joseph C. Oefelein, Khachik Sargsyan, Xun Huan, Zachary P. Vane

arxiv:1707.09334 v3 · 2017-07-28 · stat.CO · cs.IT · math.IT · physics.comp-ph · physics.flu-dyn · stat.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{66IPQAZD4UIOYDFE24GMJFUJRA}

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	2026-05-18T00:12:24.998701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f790f80323e510ec0ca4d70cc49689883e2815059d1f4f68ee95896c4a0b0e15

Aliases

arxiv: 1707.09334 · arxiv_version: 1707.09334v3 · doi: 10.48550/arxiv.1707.09334 · pith_short_12: 66IPQAZD4UIO · pith_short_16: 66IPQAZD4UIOYDFE · pith_short_8: 66IPQAZD

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/66IPQAZD4UIOYDFE24GMJFUJRA \
  | 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: f790f80323e510ec0ca4d70cc49689883e2815059d1f4f68ee95896c4a0b0e15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b86719e9cb5c85469e8296b8842f04768bd80d64c36b039865120c5c953180b",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "physics.comp-ph",
      "physics.flu-dyn",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2017-07-28T17:20:39Z",
    "title_canon_sha256": "6f0b2ea314e5b48ddd61c996911b132e80f0a7757c151f965c2a2c0a67d5b9f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.09334",
    "kind": "arxiv",
    "version": 3
  }
}