Pith Number

pith:I5J4YPQE

pith:2017:I5J4YPQEXED6Q6VH76J35WZ63A

not attested not anchored not stored refs pending

Efficient and Robust Recovery of Sparse Signal and Image Using Generalized Nonconvex Regularization

Fei Wen, Ling Pei, Peilin Liu, Wenxian Yu, Yuan Yang

arxiv:1703.07952 v2 · 2017-03-23 · 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{I5J4YPQEXED6Q6VH76J35WZ63A}

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	2026-05-18T00:47:39.799280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4753cc3e04b907e87aa7ff93bedb3ed8146c4ec7518de64d4f3bc7f80d193315

Aliases

arxiv: 1703.07952 · arxiv_version: 1703.07952v2 · doi: 10.48550/arxiv.1703.07952 · pith_short_12: I5J4YPQEXED6 · pith_short_16: I5J4YPQEXED6Q6VH · pith_short_8: I5J4YPQE

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/I5J4YPQEXED6Q6VH76J35WZ63A \
  | 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: 4753cc3e04b907e87aa7ff93bedb3ed8146c4ec7518de64d4f3bc7f80d193315

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "428bf9a8c9896772880ffa9f3b9df3590faffd1a418d82c2e106e0621c8ab9fd",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-03-23T07:36:45Z",
    "title_canon_sha256": "61bbdf48c4e7693308f6bf87a669523c22db14d9990cd5abf58b406525425acd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.07952",
    "kind": "arxiv",
    "version": 2
  }
}