Pith Number

pith:EDSYQXBZ

pith:2017:EDSYQXBZBIHMAWUDTAEXQZK25Z

not attested not anchored not stored refs pending

Minimization of fraction function penalty in compressed sensing

Angang Cui, Haiyang Li, Jigen Peng, Qian Zhang

arxiv:1705.06048 v4 · 2017-05-17 · 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{EDSYQXBZBIHMAWUDTAEXQZK25Z}

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	2026-05-17T23:40:26.915470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20e5885c390a0ec05a83980978655aee7290da0633ff743e63d0776488ac4955

Aliases

arxiv: 1705.06048 · arxiv_version: 1705.06048v4 · doi: 10.48550/arxiv.1705.06048 · pith_short_12: EDSYQXBZBIHM · pith_short_16: EDSYQXBZBIHMAWUD · pith_short_8: EDSYQXBZ

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/EDSYQXBZBIHMAWUDTAEXQZK25Z \
  | 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: 20e5885c390a0ec05a83980978655aee7290da0633ff743e63d0776488ac4955

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faff2bc2376af2c546ecbf5dda47bdddb533f55e779e1f5e8cdd8db52f57fceb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-05-17T08:49:12Z",
    "title_canon_sha256": "a18057e999395a29bb6e0e419cece1b2f4f6de17cecc96f3858123e0669966ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06048",
    "kind": "arxiv",
    "version": 4
  }
}