Pith Number

pith:2NAO2W22

pith:2018:2NAO2W2223MWYGLXUR2CCO3BAZ

not attested not anchored not stored refs pending

Sparsity-based Defense against Adversarial Attacks on Linear Classifiers

Ramtin Pedarsani, Soorya Gopalakrishnan, Upamanyu Madhow, Zhinus Marzi

arxiv:1801.04695 v3 · 2018-01-15 · stat.ML · cs.IT · cs.LG · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2NAO2W2223MWYGLXUR2CCO3BAZ}

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	2026-05-18T00:12:53.533714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d340ed5b5ad6d96c1977a474213b6106630a5afce6bffc94ce206e8a80b5d1a8

Aliases

arxiv: 1801.04695 · arxiv_version: 1801.04695v3 · doi: 10.48550/arxiv.1801.04695 · pith_short_12: 2NAO2W2223MW · pith_short_16: 2NAO2W2223MWYGLX · pith_short_8: 2NAO2W22

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/2NAO2W2223MWYGLXUR2CCO3BAZ \
  | 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: d340ed5b5ad6d96c1977a474213b6106630a5afce6bffc94ce206e8a80b5d1a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92c114e8b0ab9aee5974f2c7b302fb5300766dad27cecca8cb232f788be01933",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.LG",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-01-15T08:18:33Z",
    "title_canon_sha256": "d391f1676e666ed2d4cd2b4743a4236b053e925c56a24db65a2fdab37b46363d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04695",
    "kind": "arxiv",
    "version": 3
  }
}