Pith Number

pith:LDYECILZ

pith:2015:LDYECILZQ5LY6BJGWHICTAD5UC

not attested not anchored not stored refs pending

Learning with Group Invariant Features: A Kernel Perspective

Stephen Voinea, Tomaso Poggio, Youssef Mroueh

arxiv:1506.02544 v2 · 2015-06-08 · cs.LG · cs.CV · 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{LDYECILZQ5LY6BJGWHICTAD5UC}

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	2026-05-18T01:25:18.101220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58f041217987578f0526b1d029807da0bdc51b851e56789af62a0ad6ca7cd904

Aliases

arxiv: 1506.02544 · arxiv_version: 1506.02544v2 · doi: 10.48550/arxiv.1506.02544 · pith_short_12: LDYECILZQ5LY · pith_short_16: LDYECILZQ5LY6BJG · pith_short_8: LDYECILZ

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/LDYECILZQ5LY6BJGWHICTAD5UC \
  | 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: 58f041217987578f0526b1d029807da0bdc51b851e56789af62a0ad6ca7cd904

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c06911afa606e6079b4dcb7c14e4ee12cd0da79b08469d4167239c2a3f2a7eba",
    "cross_cats_sorted": [
      "cs.CV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-06-08T15:19:30Z",
    "title_canon_sha256": "51df96e0167f91a594ca23ac67c035514f6dc8846275cbb34903a266478e3bcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02544",
    "kind": "arxiv",
    "version": 2
  }
}