Pith Number

pith:6KUDYE53

pith:2009:6KUDYE53VHMEPCN4S4Q2SUPM4X

not attested not anchored not stored refs pending

Beyond Nyquist: Efficient Sampling of Sparse Bandlimited Signals

Jason N. Laska, Joel A. Tropp, Justin K. Romberg, Marco F. Duarte, Richard G. Baraniuk

arxiv:0902.0026 v2 · 2009-01-31 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6KUDYE53VHMEPCN4S4Q2SUPM4X}

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.

Cited by

1 paper in Pith

Universality in Learning from Linear Measurements

Receipt and verification

First computed	2026-05-18T00:59:11.463879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2a83c13bba9d84789bc9721a951ece5cb07dba732bbb3862b3759abaafe382f

Aliases

arxiv: 0902.0026 · arxiv_version: 0902.0026v2 · doi: 10.48550/arxiv.0902.0026 · pith_short_12: 6KUDYE53VHME · pith_short_16: 6KUDYE53VHMEPCN4 · pith_short_8: 6KUDYE53

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/6KUDYE53VHMEPCN4S4Q2SUPM4X \
  | 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: f2a83c13bba9d84789bc9721a951ece5cb07dba732bbb3862b3759abaafe382f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8c9c8da6f792fe056776b4b820f710138897c66b51053ced77c92ee7f84f89a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-01-31T05:00:26Z",
    "title_canon_sha256": "e62d9d2e248500caa84578a3471bebac2665edbe386fba6c6a881045b69a3987"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.0026",
    "kind": "arxiv",
    "version": 2
  }
}