Pith Number

pith:72K6BOWL

pith:2014:72K6BOWL2EDUMVDPOIB6THE3C5

not attested not anchored not stored refs pending

Collaborative Filtering with Information-Rich and Information-Sparse Entities

Kai Zhu, Lei Ying, R. Srikant, Rui Wu

arxiv:1403.1600 v1 · 2014-03-06 · stat.ML · cs.IT · cs.LG · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{72K6BOWL2EDUMVDPOIB6THE3C5}

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	2026-05-18T02:56:53.001755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe95e0bacbd10746546f7203e99c9b17720c574a28c74fa3a6de405131b487fd

Aliases

arxiv: 1403.1600 · arxiv_version: 1403.1600v1 · doi: 10.48550/arxiv.1403.1600 · pith_short_12: 72K6BOWL2EDU · pith_short_16: 72K6BOWL2EDUMVDP · pith_short_8: 72K6BOWL

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/72K6BOWL2EDUMVDPOIB6THE3C5 \
  | 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: fe95e0bacbd10746546f7203e99c9b17720c574a28c74fa3a6de405131b487fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5457374c60d815db8b226b7beb198df89c3ba6f43815140ca0186b6f1e659563",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.LG",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2014-03-06T21:51:48Z",
    "title_canon_sha256": "fd332933705a72f7548908902c9d07b6b9e3845a956d0535181666ee5d9badb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.1600",
    "kind": "arxiv",
    "version": 1
  }
}