Pith Number

pith:HHMDH4PF

pith:2019:HHMDH4PF4AUYGNGFUJ3GDRVLB3

not attested not anchored not stored refs pending

Efficient Primal-Dual Algorithms for Large-Scale Multiclass Classification

Dmitrii Ostrovskii (SIERRA, Dmitry Babichev (SIERRA, Francis Bach (SIERRA, Inria, PSL)

arxiv:1902.03755 v1 · 2019-02-11 · stat.ML · cs.LG · 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{HHMDH4PF4AUYGNGFUJ3GDRVLB3}

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	2026-05-17T23:54:19.670596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39d833f1e5e0298334c5a27661c6ab0ec45ea6676a2201f3c73cdc85d00151b5

Aliases

arxiv: 1902.03755 · arxiv_version: 1902.03755v1 · doi: 10.48550/arxiv.1902.03755 · pith_short_12: HHMDH4PF4AUY · pith_short_16: HHMDH4PF4AUYGNGF · pith_short_8: HHMDH4PF

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/HHMDH4PF4AUYGNGFUJ3GDRVLB3 \
  | 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: 39d833f1e5e0298334c5a27661c6ab0ec45ea6676a2201f3c73cdc85d00151b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5ccdb848f6631c2c75e912e9fa8ae3645015bccb8cf7d7855db8b79b209ea09",
    "cross_cats_sorted": [
      "cs.LG",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-02-11T07:39:24Z",
    "title_canon_sha256": "c61ff7777cadcff8682cede8e82dd8ce6998aab8c2b7280d1dfce87b60a45f44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.03755",
    "kind": "arxiv",
    "version": 1
  }
}