Pith Number

pith:ZPVGOQTP

pith:2008:ZPVGOQTP3MQSSQEQICHYWET5NB

not attested not anchored not stored refs pending

On Verifiable Sufficient Conditions for Sparse Signal Recovery via $\ell_1$ Minimization

Anatoli Juditsky (LMC - IMAG), Arkadii S. Nemirovski (ISyE)

arxiv:0809.2650 v2 · 2008-09-16 · math.OC · 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{ZPVGOQTP3MQSSQEQICHYWET5NB}

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	2026-05-18T02:54:31.106037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbea67426fdb21294090408f8b127d686f8bcc4d2ff774c5516e18deb4d26d42

Aliases

arxiv: 0809.2650 · arxiv_version: 0809.2650v2 · doi: 10.48550/arxiv.0809.2650 · pith_short_12: ZPVGOQTP3MQS · pith_short_16: ZPVGOQTP3MQSSQEQ · pith_short_8: ZPVGOQTP

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/ZPVGOQTP3MQSSQEQICHYWET5NB \
  | 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: cbea67426fdb21294090408f8b127d686f8bcc4d2ff774c5516e18deb4d26d42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd6a3ad75287a7c01ba21b54c12b862e76cb56ad5a7226dff1734901c1d64ccb",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2008-09-16T07:29:23Z",
    "title_canon_sha256": "dc66fb116714fee7992d0156e4f3afc0a0f5a775ac4fbfd600ea6dc8e4cb52e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2650",
    "kind": "arxiv",
    "version": 2
  }
}