Pith Number

pith:QXZ5GGTM

pith:2019:QXZ5GGTMANRY2DRLI53KUYWQ6R

not attested not anchored not stored refs pending

Re-Weighted $\ell_1$ Algorithms within the Lagrange Duality Framework: Bringing Interpretability to Weights

Marcelo Fiori, Mat\'ias Vald\'es

arxiv:1906.09329 v1 · 2019-06-21 · math.OC · cs.LG · cs.NA · eess.SP · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QXZ5GGTMANRY2DRLI53KUYWQ6R}

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	2026-05-17T23:42:38.477972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85f3d31a6c03638d0e2b4776aa62d0f47630c2b8dd02c9201c8b3456dc01308c

Aliases

arxiv: 1906.09329 · arxiv_version: 1906.09329v1 · doi: 10.48550/arxiv.1906.09329 · pith_short_12: QXZ5GGTMANRY · pith_short_16: QXZ5GGTMANRY2DRL · pith_short_8: QXZ5GGTM

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/QXZ5GGTMANRY2DRLI53KUYWQ6R \
  | 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: 85f3d31a6c03638d0e2b4776aa62d0f47630c2b8dd02c9201c8b3456dc01308c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7baa5f3407c33d746d57b9ac1010611b61b6f671860e35fb135a09913cda9d1c",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA",
      "eess.SP",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-06-21T21:10:25Z",
    "title_canon_sha256": "1148b6e075cbec471b207217e6ce25525f1ad77d599242d78bcc06dedd0650f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.09329",
    "kind": "arxiv",
    "version": 1
  }
}