Pith Number

pith:AQ3VKEGW

pith:2014:AQ3VKEGWZUNIT2P6PGG22DKUAG

not attested not anchored not stored refs pending

Second-order orthant-based methods with enriched Hessian information for sparse $\ell_1$-optimization

E. Loayza, J.C. De los Reyes, P. Merino

arxiv:1407.1096 v2 · 2014-07-04 · 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{AQ3VKEGWZUNIT2P6PGG22DKUAG}

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	2026-05-18T01:11:37.521284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04375510d6cd1a89e9fe798dad0d5401a83d804cfcfcf465b1697a6fde07614b

Aliases

arxiv: 1407.1096 · arxiv_version: 1407.1096v2 · doi: 10.48550/arxiv.1407.1096 · pith_short_12: AQ3VKEGWZUNI · pith_short_16: AQ3VKEGWZUNIT2P6 · pith_short_8: AQ3VKEGW

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/AQ3VKEGWZUNIT2P6PGG22DKUAG \
  | 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: 04375510d6cd1a89e9fe798dad0d5401a83d804cfcfcf465b1697a6fde07614b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18e439dfd9addb172c6ee55601e619b868df9285188d544f4bd1e273258453e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-07-04T00:33:18Z",
    "title_canon_sha256": "aa79ab23ef9b7d76a18435dbbb5d1ad68425dd9fd0cce8f46493724429e7fe41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.1096",
    "kind": "arxiv",
    "version": 2
  }
}