Pith Number

pith:VMF4IEQK

pith:2016:VMF4IEQKNGH4EDENCYGHNOIEOE

not attested not anchored not stored refs pending

On the Use of Sparse Filtering for Covariate Shift Adaptation

Fabio Massimo Zennaro, Ke Chen

arxiv:1607.06781 v2 · 2016-07-22 · 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{VMF4IEQKNGH4EDENCYGHNOIEOE}

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	2026-05-18T00:35:44.175468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab0bc4120a698fc20c8d160c76b904712fc6975ad7b5c00e2e5e49a3a4d1bdf9

Aliases

arxiv: 1607.06781 · arxiv_version: 1607.06781v2 · doi: 10.48550/arxiv.1607.06781 · pith_short_12: VMF4IEQKNGH4 · pith_short_16: VMF4IEQKNGH4EDEN · pith_short_8: VMF4IEQK

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/VMF4IEQKNGH4EDENCYGHNOIEOE \
  | 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: ab0bc4120a698fc20c8d160c76b904712fc6975ad7b5c00e2e5e49a3a4d1bdf9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cf25eb8c58c4104aa4cab0ce58c7bd47b853445b1908aed3384cef9230247ab",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-07-22T18:17:10Z",
    "title_canon_sha256": "348d6fc6a48b99b219df7c3457b4237b260f2b77593ff699cd4e84fafb0fdfa7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.06781",
    "kind": "arxiv",
    "version": 2
  }
}