Pith Number

pith:6W2SHPDF

pith:2009:6W2SHPDFJ4IFIVTJLCK5OPQBT3

not attested not anchored not stored refs pending

Coherence-Based Performance Guarantees for Estimating a Sparse Vector Under Random Noise

Michael Elad, Yonina C. Eldar, Zvika Ben-Haim

arxiv:0903.4579 v2 · 2009-03-26 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6W2SHPDFJ4IFIVTJLCK5OPQBT3}

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	2026-05-18T02:14:25.824673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5b523bc654f105456695895d73e019efd180bf42687e2ca5e64d5d94febddc7

Aliases

arxiv: 0903.4579 · arxiv_version: 0903.4579v2 · doi: 10.48550/arxiv.0903.4579 · pith_short_12: 6W2SHPDFJ4IF · pith_short_16: 6W2SHPDFJ4IFIVTJ · pith_short_8: 6W2SHPDF

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/6W2SHPDFJ4IFIVTJLCK5OPQBT3 \
  | 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: f5b523bc654f105456695895d73e019efd180bf42687e2ca5e64d5d94febddc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad80a1b6c7bfcdb8a88d911855cbf6100483f0a8ca973c8f8069b5071233d842",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2009-03-26T13:37:09Z",
    "title_canon_sha256": "7e1f90498b2dae256dbe120355679727893f34470647e47c1797c12ab90793d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4579",
    "kind": "arxiv",
    "version": 2
  }
}