Pith Number

pith:SIRXY42A

pith:2015:SIRXY42APFSXST6WDKSPJMVLJH

not attested not anchored not stored refs pending

L1-Regularized Distributed Optimization: A Communication-Efficient Primal-Dual Framework

Martin Jaggi, Michael I. Jordan, Simone Forte, Virginia Smith

arxiv:1512.04011 v2 · 2015-12-13 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SIRXY42APFSXST6WDKSPJMVLJH}

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	2026-05-18T01:13:00.345878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92237c73407965794fd61aa4f4b2ab49cf533d51a9d85edaefa00bba95cf942c

Aliases

arxiv: 1512.04011 · arxiv_version: 1512.04011v2 · doi: 10.48550/arxiv.1512.04011 · pith_short_12: SIRXY42APFSX · pith_short_16: SIRXY42APFSXST6W · pith_short_8: SIRXY42A

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/SIRXY42APFSXST6WDKSPJMVLJH \
  | 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: 92237c73407965794fd61aa4f4b2ab49cf533d51a9d85edaefa00bba95cf942c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09594530aee9984d54917178b771ece0fa30350ce2cfa41cd827644e71f19c08",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-12-13T06:49:00Z",
    "title_canon_sha256": "26f3481eeb00242a6d60735349603dee80223303cff430098e3057d401712e77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.04011",
    "kind": "arxiv",
    "version": 2
  }
}