Pith Number

pith:WWR63VLM

pith:2019:WWR63VLMCNH75C66KFLLDXTYU5

not attested not anchored not stored refs pending

Curvature-Exploiting Acceleration of Elastic Net Computations

Mikael Johansson, Vien V. Mai

arxiv:1901.08523 v1 · 2019-01-24 · math.OC · 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{WWR63VLMCNH75C66KFLLDXTYU5}

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	2026-05-17T23:55:35.275527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5a3edd56c134ffe8bde5156b1de78a7461aed532bc3637b98e66964f316f80b

Aliases

arxiv: 1901.08523 · arxiv_version: 1901.08523v1 · doi: 10.48550/arxiv.1901.08523 · pith_short_12: WWR63VLMCNH7 · pith_short_16: WWR63VLMCNH75C66 · pith_short_8: WWR63VLM

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/WWR63VLMCNH75C66KFLLDXTYU5 \
  | 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: b5a3edd56c134ffe8bde5156b1de78a7461aed532bc3637b98e66964f316f80b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6367993b207fe8c460803199619da42b3577e571c502c67c9b3d15405d254c38",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-01-24T17:37:12Z",
    "title_canon_sha256": "36c0b1132161880aa6718466b204660ae71b9076fdcd9eb7dd683d3c8eea6d6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08523",
    "kind": "arxiv",
    "version": 1
  }
}