Pith Number

pith:2YAWOOAV

pith:2016:2YAWOOAVR4PNJI4255FVLSEY2N

not attested not anchored not stored refs pending

$L^0$-regularized Variational Methods for Sparse Phase Retrieval

Chunlin Wu, Huibin Chang, Yuping Duan, Zhi-Feng Pang

arxiv:1612.02538 v1 · 2016-12-08 · 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{2YAWOOAVR4PNJI4255FVLSEY2N}

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	2026-05-18T00:55:33.418305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6016738158f1ed4a39aef4b55c898d371eb38a9c017824c592f3a077e33196b

Aliases

arxiv: 1612.02538 · arxiv_version: 1612.02538v1 · doi: 10.48550/arxiv.1612.02538 · pith_short_12: 2YAWOOAVR4PN · pith_short_16: 2YAWOOAVR4PNJI42 · pith_short_8: 2YAWOOAV

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/2YAWOOAVR4PNJI4255FVLSEY2N \
  | 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: d6016738158f1ed4a39aef4b55c898d371eb38a9c017824c592f3a077e33196b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e164d4d376bbe2a10ec1e1e1bce72f4e29366507568716288820b73cf097dbc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-12-08T06:14:34Z",
    "title_canon_sha256": "f0e93d69872e52708a68b6c6c593ecee117fe6bd46987053ff2d0d99c04d787d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.02538",
    "kind": "arxiv",
    "version": 1
  }
}