Pith Number

pith:GJ63GNV2

pith:2012:GJ63GNV26A2A366XNTGUUFSCNZ

not attested not anchored not stored refs pending

Projected Subgradient Methods for Learning Sparse Gaussians

Daphne Koller, John Duchi, Stephen Gould

arxiv:1206.3249 v1 · 2012-06-13 · cs.LG · 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{GJ63GNV26A2A366XNTGUUFSCNZ}

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	2026-05-18T03:53:31.037422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

327db336baf0340dfbd76ccd4a16426e51f0dc6ccc8c3dc021e8ed105865dedb

Aliases

arxiv: 1206.3249 · arxiv_version: 1206.3249v1 · doi: 10.48550/arxiv.1206.3249 · pith_short_12: GJ63GNV26A2A · pith_short_16: GJ63GNV26A2A366X · pith_short_8: GJ63GNV2

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/GJ63GNV26A2A366XNTGUUFSCNZ \
  | 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: 327db336baf0340dfbd76ccd4a16426e51f0dc6ccc8c3dc021e8ed105865dedb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbafc9dd78ece2a3f7cc410448b9021fb2ad7c8de5aac7ea7c6a6d5844e2fb28",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-06-13T15:09:50Z",
    "title_canon_sha256": "e342145b786485f9ab31c43f591e7a9f63c0fa4cc49b63bb6c1b295b2d8945f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.3249",
    "kind": "arxiv",
    "version": 1
  }
}