Pith Number

pith:WUMPJ4B5

pith:2015:WUMPJ4B5LUOKY7DHE5DMKPYXKV

not attested not anchored not stored refs pending

ICR: Iterative Convex Refinement for Sparse Signal Recovery Using Spike and Slab Priors

Hojjat S. Mousavi, Trac D. Tran, Vishal Monga

arxiv:1502.04726 v1 · 2015-02-16 · stat.ML · cs.CV · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WUMPJ4B5LUOKY7DHE5DMKPYXKV}

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	2026-05-18T02:02:07.916092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b518f4f03d5d1cac7c672746c53f1755696cefc1d4466db828fa72beff6bbf70

Aliases

arxiv: 1502.04726 · arxiv_version: 1502.04726v1 · doi: 10.48550/arxiv.1502.04726 · pith_short_12: WUMPJ4B5LUOK · pith_short_16: WUMPJ4B5LUOKY7DH · pith_short_8: WUMPJ4B5

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/WUMPJ4B5LUOKY7DHE5DMKPYXKV \
  | 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: b518f4f03d5d1cac7c672746c53f1755696cefc1d4466db828fa72beff6bbf70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3441473f935afd44a1b13dd9b17a10cc6b3748609c7fdd3c1ee49a91bd3a102b",
    "cross_cats_sorted": [
      "cs.CV",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-02-16T21:17:52Z",
    "title_canon_sha256": "86584844916cf7be06ead050f670a73fb8554e7d93d872a5e774e8232393ab26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04726",
    "kind": "arxiv",
    "version": 1
  }
}