Pith Number

pith:HIM5GV2Y

pith:2016:HIM5GV2YFM6IDT44R5TAS2RAHJ

not attested not anchored not stored refs pending

A multilevel framework for sparse optimization with application to inverse covariance estimation and logistic regression

Eran Treister, Irad Yavneh, Javier S. Turek

arxiv:1607.00315 v1 · 2016-07-01 · cs.NA · 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{HIM5GV2YFM6IDT44R5TAS2RAHJ}

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	2026-05-18T01:11:37.680805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a19d357582b3c81cf9c8f66096a203a77a1374374c18355eaf69d68cf2746b6

Aliases

arxiv: 1607.00315 · arxiv_version: 1607.00315v1 · doi: 10.48550/arxiv.1607.00315 · pith_short_12: HIM5GV2YFM6I · pith_short_16: HIM5GV2YFM6IDT44 · pith_short_8: HIM5GV2Y

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/HIM5GV2YFM6IDT44R5TAS2RAHJ \
  | 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: 3a19d357582b3c81cf9c8f66096a203a77a1374374c18355eaf69d68cf2746b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4236d0a822170aaa035f200f008233027f4bac068b17e6dc2665457ef0d45c54",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2016-07-01T16:59:13Z",
    "title_canon_sha256": "ae6be5a95ea8575f310f97221b66767bcbf0865850209df4ad387d858da649f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.00315",
    "kind": "arxiv",
    "version": 1
  }
}