Pith Number

pith:E4XFRHFK

pith:2012:E4XFRHFKIPPJQFWZKGASNBNWC3

not attested not anchored not stored refs pending

Efficient Active Learning of Halfspaces: an Aggressive Approach

Alon Gonen, Shai Shalev-Shwartz, Sivan Sabato

arxiv:1208.3561 v3 · 2012-08-17 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E4XFRHFKIPPJQFWZKGASNBNWC3}

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	2026-05-18T02:21:01.041763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

272e589caa43de9816d951812685b616ff66c06ae655abfefb0267adc2d69530

Aliases

arxiv: 1208.3561 · arxiv_version: 1208.3561v3 · doi: 10.48550/arxiv.1208.3561 · pith_short_12: E4XFRHFKIPPJ · pith_short_16: E4XFRHFKIPPJQFWZ · pith_short_8: E4XFRHFK

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/E4XFRHFKIPPJQFWZKGASNBNWC3 \
  | 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: 272e589caa43de9816d951812685b616ff66c06ae655abfefb0267adc2d69530

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61134f49bc352db0a978e51f86c85d5fcfaa38e565dab05def7d3915d48927c3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-08-17T09:49:31Z",
    "title_canon_sha256": "5c6841aba3d333af75c959b1b48b7d9c0b05a972cf374ecd0fc865587cc51176"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3561",
    "kind": "arxiv",
    "version": 3
  }
}