Pith Number

pith:EF7YFCWB

pith:2018:EF7YFCWBWXLBNLJW4SFIW7NGUO

not attested not anchored not stored refs pending

Collaborative Filtering with Stability

Chao Chen, Dongsheng Li, Junchi Yan, Li Shang, Qin Lv, Stephen M. Chu

arxiv:1811.02198 v1 · 2018-11-06 · 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{EF7YFCWBWXLBNLJW4SFIW7NGUO}

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	2026-05-18T00:01:24.856948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

217f828ac1b5d616ad36e48a8b7da6a3b8e236ab97fd21824fa3435f30114d1d

Aliases

arxiv: 1811.02198 · arxiv_version: 1811.02198v1 · doi: 10.48550/arxiv.1811.02198 · pith_short_12: EF7YFCWBWXLB · pith_short_16: EF7YFCWBWXLBNLJW · pith_short_8: EF7YFCWB

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/EF7YFCWBWXLBNLJW4SFIW7NGUO \
  | 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: 217f828ac1b5d616ad36e48a8b7da6a3b8e236ab97fd21824fa3435f30114d1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3f7ef6eddbb0ba8dea42137ef17b3fda08d0f1415abb6c61a643afa05d98346",
    "cross_cats_sorted": [
      "cs.IR",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-11-06T07:13:23Z",
    "title_canon_sha256": "94484dcf862aa6b77f60cd440c467ce9ea4907cd1cea4ec348f6bd3aaa978f9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02198",
    "kind": "arxiv",
    "version": 1
  }
}