Pith Number

pith:PBVHUHMH

pith:2015:PBVHUHMHEQLMNUIBGMWKQYDDSA

not attested not anchored not stored refs pending

A globally convergent and locally quadratically convergent modified B-semismooth Newton method for $\ell_1$-penalized minimization

Esther Hans, Thorsten Raasch

arxiv:1508.03448 v3 · 2015-08-14 · 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{PBVHUHMHEQLMNUIBGMWKQYDDSA}

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	2026-05-18T01:17:25.445593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

786a7a1d872416c6d101332ca86063901a17b69b84fd46e1dffcc1ff06003bf0

Aliases

arxiv: 1508.03448 · arxiv_version: 1508.03448v3 · doi: 10.48550/arxiv.1508.03448 · pith_short_12: PBVHUHMHEQLM · pith_short_16: PBVHUHMHEQLMNUIB · pith_short_8: PBVHUHMH

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/PBVHUHMHEQLMNUIBGMWKQYDDSA \
  | 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: 786a7a1d872416c6d101332ca86063901a17b69b84fd46e1dffcc1ff06003bf0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1263e6c61775b5acb092b2b04973e4e9cc2cd6a7ff3cd51c8b64cadb264938ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-08-14T09:28:50Z",
    "title_canon_sha256": "85db7f30643830ca1ab2b89aaf1b9e06e3c901404f0e5c9c580c7765c7f31484"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.03448",
    "kind": "arxiv",
    "version": 3
  }
}