Pith Number

pith:WCKZ3RM3

pith:2015:WCKZ3RM3OS7PDYRV4ZXGBKTG4K

not attested not anchored not stored refs pending

Collaborative Filtering Bandits

Alexandros Karatzoglou, Claudio Gentile, Shuai Li

arxiv:1502.03473 v7 · 2015-02-11 · cs.LG · cs.AI · 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{WCKZ3RM3OS7PDYRV4ZXGBKTG4K}

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.

Cited by

1 paper in Pith

Spectral bandits

Receipt and verification

First computed	2026-05-18T01:13:16.867019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0959dc59b74bef1e235e66e60aa66e29dec1b60583803981d77ec297179e780

Aliases

arxiv: 1502.03473 · arxiv_version: 1502.03473v7 · doi: 10.48550/arxiv.1502.03473 · pith_short_12: WCKZ3RM3OS7P · pith_short_16: WCKZ3RM3OS7PDYRV · pith_short_8: WCKZ3RM3

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/WCKZ3RM3OS7PDYRV4ZXGBKTG4K \
  | 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: b0959dc59b74bef1e235e66e60aa66e29dec1b60583803981d77ec297179e780

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e2cd7f26649e46f3ede72711bd39072d680f2dfd681e429eee422d8951e8016",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-02-11T22:28:14Z",
    "title_canon_sha256": "75465e296dbb76279d52af1a35a7e89b6faaa7edb7ad2529e5c00824f0a19f6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03473",
    "kind": "arxiv",
    "version": 7
  }
}