Pith Number

pith:EGAYMCOQ

pith:2023:EGAYMCOQJBYF4MJGEIIHO2LTXK

not attested not anchored not stored refs pending

CSPM: A Contrastive Spatiotemporal Preference Model for CTR Prediction in On-Demand Food Delivery Services

Guodong Cao, Guyu Jiang, Ning Hu, Rongrong Jing, Ruoqi Zhao, Xiaoyun Li, Xingliang Ni

arxiv:2308.08446 v1 · 2023-08-10 · 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{EGAYMCOQJBYF4MJGEIIHO2LTXK}

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	2026-07-05T06:41:59.322350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21818609d048705e31262210776973baa5dbffa675720beb8deddf262f0143f0

Aliases

arxiv: 2308.08446 · arxiv_version: 2308.08446v1 · doi: 10.48550/arxiv.2308.08446 · pith_short_12: EGAYMCOQJBYF · pith_short_16: EGAYMCOQJBYF4MJG · pith_short_8: EGAYMCOQ

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/EGAYMCOQJBYF4MJGEIIHO2LTXK \
  | 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: 21818609d048705e31262210776973baa5dbffa675720beb8deddf262f0143f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cfd732d3a4fb1c3b2c4c7ceeecce24c7d41acedbbd7cbe81544e99e6904f7e9",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2023-08-10T19:53:30Z",
    "title_canon_sha256": "d860076786e8cef6cabf372233f9570293e402daa82e8d96ee4f4e4e47e942ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2308.08446",
    "kind": "arxiv",
    "version": 1
  }
}