Pith Number

pith:DWKR26QE

pith:2010:DWKR26QEOPVXMOCXFSDREKMTLN

not attested not anchored not stored refs pending

A Contextual-Bandit Approach to Personalized News Article Recommendation

John Langford, Lihong Li, Robert E. Schapire, Wei Chu

arxiv:1003.0146 v2 · 2010-02-28 · cs.LG · cs.AI · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DWKR26QEOPVXMOCXFSDREKMTLN}

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	2026-05-18T04:01:02.292771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d951d7a0473eb7638572c871229935b6ea4152d2b55741e6eae0a40181eb83d

Aliases

arxiv: 1003.0146 · arxiv_version: 1003.0146v2 · doi: 10.48550/arxiv.1003.0146 · pith_short_12: DWKR26QEOPVX · pith_short_16: DWKR26QEOPVXMOCX · pith_short_8: DWKR26QE

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/DWKR26QEOPVXMOCXFSDREKMTLN \
  | 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: 1d951d7a0473eb7638572c871229935b6ea4152d2b55741e6eae0a40181eb83d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfd75283be0f0396c8f0b1870c53666b486b8954d8bea5d7d756a7da7d588ff2",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2010-02-28T02:18:59Z",
    "title_canon_sha256": "252501b08516828d6af00e7b3a03d8718a80ea0364dc3c7595a6ead6f8344a62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.0146",
    "kind": "arxiv",
    "version": 2
  }
}