Pith Number

pith:CPZTT6BH

pith:2012:CPZTT6BHJFQCKVOQXP4K2TJ7TM

not attested not anchored not stored refs pending

Boosting Simple Collaborative Filtering Models Using Ensemble Methods

Alon Schclar, Ariel Bar, Bracha Shapira, Guy Shani, Lior Rokach

arxiv:1211.2891 v1 · 2012-11-13 · cs.IR · cs.LG · 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{CPZTT6BHJFQCKVOQXP4K2TJ7TM}

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	2026-05-18T03:40:52.432741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13f339f82749602555d0bbf8ad4d3f9b2aff0de943cc59f57b6067f8faf83cb8

Aliases

arxiv: 1211.2891 · arxiv_version: 1211.2891v1 · doi: 10.48550/arxiv.1211.2891 · pith_short_12: CPZTT6BHJFQC · pith_short_16: CPZTT6BHJFQCKVOQ · pith_short_8: CPZTT6BH

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/CPZTT6BHJFQCKVOQXP4K2TJ7TM \
  | 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: 13f339f82749602555d0bbf8ad4d3f9b2aff0de943cc59f57b6067f8faf83cb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "539feea36e32e917adba56965c5fcf6b09675e7ad3755f67f4177151dd5870b6",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2012-11-13T05:30:36Z",
    "title_canon_sha256": "1594dc93a7ac6bc67ff0f24b98a04668abe8032a5c5078b4b9f1e2d1912a3571"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2891",
    "kind": "arxiv",
    "version": 1
  }
}