Pith Number

pith:E6BEUTID

pith:2016:E6BEUTIDPIYGPWTLFTNMJJCYJ6

not attested not anchored not stored refs pending

Polynomial approximation via compressed sensing of high-dimensional functions on lower sets

Abdellah Chkifa, Clayton G. Webster, Hoang Tran, Nick Dexter

arxiv:1602.05823 v1 · 2016-02-18 · 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{E6BEUTIDPIYGPWTLFTNMJJCYJ6}

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	2026-06-04T17:10:02.188324Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27824a4d037a3067da6b2cdac4a4584f8375b0b2c9745ec75d5df8217d7bf7cd

Aliases

arxiv: 1602.05823 · arxiv_version: 1602.05823v1 · doi: 10.48550/arxiv.1602.05823 · pith_short_12: E6BEUTIDPIYG · pith_short_16: E6BEUTIDPIYGPWTL · pith_short_8: E6BEUTID

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/E6BEUTIDPIYGPWTLFTNMJJCYJ6 \
  | 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: 27824a4d037a3067da6b2cdac4a4584f8375b0b2c9745ec75d5df8217d7bf7cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c988ddceaddd4d39fa1ffdb6fbc0f7ecb0e926d547c66dac57946e5ea8de17bb",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-02-18T14:59:41Z",
    "title_canon_sha256": "76cbf0481336fee2e3dbf8f5c16c60e135e3686a16a164255910335eccf052ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.05823",
    "kind": "arxiv",
    "version": 1
  }
}