Pith Number

pith:FCQZZ675

pith:2019:FCQZZ675SU4IF2BVMIS2ILD6WR

not attested not anchored not stored refs pending

When Collaborative Filtering Meets Reinforcement Learning

Wenjie Li, Yu Lei

arxiv:1902.00715 v2 · 2019-02-02 · cs.LG · cs.IR · 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{FCQZZ675SU4IF2BVMIS2ILD6WR}

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	2026-05-17T23:49:39.384815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28a19cfbfd953882e8356225a42c7eb465a14b0008aac2754856831c89b18bcd

Aliases

arxiv: 1902.00715 · arxiv_version: 1902.00715v2 · doi: 10.48550/arxiv.1902.00715 · pith_short_12: FCQZZ675SU4I · pith_short_16: FCQZZ675SU4IF2BV · pith_short_8: FCQZZ675

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/FCQZZ675SU4IF2BVMIS2ILD6WR \
  | 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: 28a19cfbfd953882e8356225a42c7eb465a14b0008aac2754856831c89b18bcd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1631577d85d9a54bb23c6d910f61fb1fff697a412967b1033c573e1ec0ecfe61",
    "cross_cats_sorted": [
      "cs.IR",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-02-02T13:22:35Z",
    "title_canon_sha256": "bf92fa1bbe32d8d6e8823a84e83db20b93f9fa9d7dd5432252df2374e7721419"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00715",
    "kind": "arxiv",
    "version": 2
  }
}