Pith Number

pith:EYWGJS6B

pith:2012:EYWGJS6BC7MIGQW7MKBJ24ZPVT

not attested not anchored not stored refs pending

Necessary and sufficient conditions of solution uniqueness in $\ell_1$ minimization

Hui Zhang, Lizhi Cheng, Wotao Yin

arxiv:1209.0652 v2 · 2012-09-04 · cs.IT · math.IT · math.NA · 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{EYWGJS6BC7MIGQW7MKBJ24ZPVT}

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	2026-05-18T01:26:25.757448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

262c64cbc117d88342df62829d732facd9fc6497bff63310ed1644ae3284b90f

Aliases

arxiv: 1209.0652 · arxiv_version: 1209.0652v2 · doi: 10.48550/arxiv.1209.0652 · pith_short_12: EYWGJS6BC7MI · pith_short_16: EYWGJS6BC7MIGQW7 · pith_short_8: EYWGJS6B

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/EYWGJS6BC7MIGQW7MKBJ24ZPVT \
  | 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: 262c64cbc117d88342df62829d732facd9fc6497bff63310ed1644ae3284b90f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60939f9e902d0df416b6fbfbf7acc590ec334645ee6b351d6bcdd492ecbea903",
    "cross_cats_sorted": [
      "math.IT",
      "math.NA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-09-04T14:10:09Z",
    "title_canon_sha256": "c7ed19d6a3288fc79977fc36cb44653c41e6da7dfdd4bcefb502cd5e069349fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.0652",
    "kind": "arxiv",
    "version": 2
  }
}