Pith Number

pith:5H5QBNAM

pith:2022:5H5QBNAMQ7N22YJGPZ2535DF6F

not attested not anchored not stored refs pending

A Brief History of Recommender Systems

Jirong Wen, Jun Xu, Ruiming Tang, Zhenhua Dong, Zhe Wang

arxiv:2209.01860 v1 · 2022-09-05 · 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{5H5QBNAMQ7N22YJGPZ2535DF6F}

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

Trends in AI Supercomputers

Receipt and verification

First computed	2026-07-05T04:54:34.851299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9fb00b40c87dbad61267e75ddf465f1564f430728a2d4e69e5a71a6133ab412

Aliases

arxiv: 2209.01860 · arxiv_version: 2209.01860v1 · doi: 10.48550/arxiv.2209.01860 · pith_short_12: 5H5QBNAMQ7N2 · pith_short_16: 5H5QBNAMQ7N22YJG · pith_short_8: 5H5QBNAM

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/5H5QBNAMQ7N22YJGPZ2535DF6F \
  | 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: e9fb00b40c87dbad61267e75ddf465f1564f430728a2d4e69e5a71a6133ab412

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8933840ee7e5d36d0b20f3ea7a303f733a61157c99254ac3c813cc44f0d46a48",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2022-09-05T09:38:23Z",
    "title_canon_sha256": "71d70c4cb3e5b51a4ae345ea47e4dff1864a2b643eb1e66a0f4e603bb571c2a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.01860",
    "kind": "arxiv",
    "version": 1
  }
}