Pith Number

pith:QQPIIUYW

pith:2018:QQPIIUYWPNCJ436VJETMUMI6S3

not attested not anchored not stored refs pending

Entire Space Multi-Task Model: An Effective Approach for Estimating Post-Click Conversion Rate

Guan Huang, Kun Gai, Liqin Zhao, Xiao Ma, Xiaoqiang Zhu, Zelin Hu, Zhi Wang

arxiv:1804.07931 v2 · 2018-04-21 · stat.ML · cs.IR · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQPIIUYWPNCJ436VJETMUMI6S3}

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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	2026-05-18T00:17:37.640581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

841e8453167b449e6fd54926ca311e96e8f9926936ef519c1ec2ea60a87ed451

Aliases

arxiv: 1804.07931 · arxiv_version: 1804.07931v2 · doi: 10.48550/arxiv.1804.07931 · pith_short_12: QQPIIUYWPNCJ · pith_short_16: QQPIIUYWPNCJ436V · pith_short_8: QQPIIUYW

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/QQPIIUYWPNCJ436VJETMUMI6S3 \
  | 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: 841e8453167b449e6fd54926ca311e96e8f9926936ef519c1ec2ea60a87ed451

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "763b0d79482bfac1dff6615ba953f3d0cb6b043e429eeb1795434938b69658f1",
    "cross_cats_sorted": [
      "cs.IR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-04-21T09:59:29Z",
    "title_canon_sha256": "6b40fcee700de756ed650f1f62b155c6c72a5e65f75591fc6de5a7d86bff3da5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.07931",
    "kind": "arxiv",
    "version": 2
  }
}