Pith Number

pith:6IKU4HBG

pith:2019:6IKU4HBG5TOPO4IHVVD6HTYTN7

not attested not anchored not stored refs pending

Collaborative Similarity Embedding for Recommender Systems

Chih-Ming Chen, Chuan-Ju Wang, Ming-Feng Tsai, Yi-Hsuan Yang

arxiv:1902.06188 v2 · 2019-02-17 · cs.IR · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6IKU4HBG5TOPO4IHVVD6HTYTN7}

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	2026-05-17T23:53:40.928166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2154e1c26ecdcf77107ad47e3cf136fe4680269f8b1560714f10664cf846cb4

Aliases

arxiv: 1902.06188 · arxiv_version: 1902.06188v2 · doi: 10.48550/arxiv.1902.06188 · pith_short_12: 6IKU4HBG5TOP · pith_short_16: 6IKU4HBG5TOPO4IH · pith_short_8: 6IKU4HBG

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/6IKU4HBG5TOPO4IHVVD6HTYTN7 \
  | 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: f2154e1c26ecdcf77107ad47e3cf136fe4680269f8b1560714f10664cf846cb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "348f5b21dd817fed9e21c2c057ec4b16b411887072a370f7471cbdc20f7a7631",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-02-17T02:14:39Z",
    "title_canon_sha256": "0fac8b1e19c315124cc10174b9e312c0575d3a29d8782a3f051c0eaa07ce836b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.06188",
    "kind": "arxiv",
    "version": 2
  }
}