Pith Number

pith:P3BBFBOW

pith:2019:P3BBFBOW7LJZNXBMK4VMXL2SZU

not attested not anchored not stored refs pending

Reinforcement Learning to Optimize Long-term User Engagement in Recommender Systems

Dawei Yin, Jiaxing Song, Lixin Zou, Long Xia, Weidong Liu, Zhuoye Ding

arxiv:1902.05570 v4 · 2019-02-13 · 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{P3BBFBOW7LJZNXBMK4VMXL2SZU}

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	2026-05-17T23:40:55.461544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ec21285d6fad396dc2c572acbaf52cd31a8f330e3d7b1b858f3c100a02f6c54

Aliases

arxiv: 1902.05570 · arxiv_version: 1902.05570v4 · doi: 10.48550/arxiv.1902.05570 · pith_short_12: P3BBFBOW7LJZ · pith_short_16: P3BBFBOW7LJZNXBM · pith_short_8: P3BBFBOW

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/P3BBFBOW7LJZNXBMK4VMXL2SZU \
  | 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: 7ec21285d6fad396dc2c572acbaf52cd31a8f330e3d7b1b858f3c100a02f6c54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85b9fca44ab2027577a42b43b1a0f5126a8b4160b5d07f29b6404712869f2461",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-02-13T02:53:37Z",
    "title_canon_sha256": "10cb334fa16f600fd5743ddedf4a42a3b9c98e455fff37bf3bb0b719a46b2159"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05570",
    "kind": "arxiv",
    "version": 4
  }
}