Pith Number

pith:QFMQXOVQ

pith:2010:QFMQXOVQ7ON2RHMYHF5HPFRQ2H

not attested not anchored not stored refs pending

Unbiased Offline Evaluation of Contextual-bandit-based News Article Recommendation Algorithms

John Langford, Lihong Li, Wei Chu, Xuanhui Wang

arxiv:1003.5956 v2 · 2010-03-31 · cs.LG · cs.AI · cs.RO · 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{QFMQXOVQ7ON2RHMYHF5HPFRQ2H}

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	2026-05-18T02:24:25.836084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81590bbab0fb9ba89d98397a779630d1f1f1f083d8e384e645b0f4d1285e03e0

Aliases

arxiv: 1003.5956 · arxiv_version: 1003.5956v2 · doi: 10.48550/arxiv.1003.5956 · pith_short_12: QFMQXOVQ7ON2 · pith_short_16: QFMQXOVQ7ON2RHMY · pith_short_8: QFMQXOVQ

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/QFMQXOVQ7ON2RHMYHF5HPFRQ2H \
  | 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: 81590bbab0fb9ba89d98397a779630d1f1f1f083d8e384e645b0f4d1285e03e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "951f061931109de4d3a1f1b31e1cc479a8b4260fcee3bbd28a8c835c957a95b4",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.RO",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2010-03-31T01:20:07Z",
    "title_canon_sha256": "2ad7262bba7012ec8e5611d46dd5b239de9d32b071068cb9d07c8724b1493db5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.5956",
    "kind": "arxiv",
    "version": 2
  }
}