Pith Number

pith:B45CMJZC

pith:2013:B45CMJZCW7ITSD33S6GH6MNP63

not attested not anchored not stored refs pending

Finding sparse solutions of systems of polynomial equations via group-sparsity optimization

Fabien Lauer (LORIA), Henrik Ohlsson

arxiv:1311.5871 v2 · 2013-11-22 · cs.IT · cs.LG · math.IT · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B45CMJZCW7ITSD33S6GH6MNP63}

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	2026-05-18T02:47:31.426969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f3a262722b7d1390f7b978c7f31aff6f69a8bd045ee3cf5e41a429b49ff9e6f

Aliases

arxiv: 1311.5871 · arxiv_version: 1311.5871v2 · doi: 10.48550/arxiv.1311.5871 · pith_short_12: B45CMJZCW7IT · pith_short_16: B45CMJZCW7ITSD33 · pith_short_8: B45CMJZC

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/B45CMJZCW7ITSD33S6GH6MNP63 \
  | 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: 0f3a262722b7d1390f7b978c7f31aff6f69a8bd045ee3cf5e41a429b49ff9e6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c19c714b51c38e095e6fea892e79b573f9db19abddf224a9f0b14ed3b4534164",
    "cross_cats_sorted": [
      "cs.LG",
      "math.IT",
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-11-22T20:29:38Z",
    "title_canon_sha256": "4f727f13a80281ba518b4316819606b7ab1d83aaf9e9761275bc803933a090b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5871",
    "kind": "arxiv",
    "version": 2
  }
}