Pith Number

pith:OSEYWZCA

pith:2012:OSEYWZCAZRBUNFBM6IRIIMCUWL

not attested not anchored not stored refs pending

Using Wikipedia to Boost SVD Recommender Systems

Bracha Shapira, Gilad Katz, Guy Shani, Lior Rokach

arxiv:1212.1131 v1 · 2012-12-05 · 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{OSEYWZCAZRBUNFBM6IRIIMCUWL}

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	2026-05-18T03:39:05.755004Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74898b6440cc4346942cf222843054b2fcfcf77d05b4de22019b452ed31d8378

Aliases

arxiv: 1212.1131 · arxiv_version: 1212.1131v1 · doi: 10.48550/arxiv.1212.1131 · pith_short_12: OSEYWZCAZRBU · pith_short_16: OSEYWZCAZRBUNFBM · pith_short_8: OSEYWZCA

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/OSEYWZCAZRBUNFBM6IRIIMCUWL \
  | 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: 74898b6440cc4346942cf222843054b2fcfcf77d05b4de22019b452ed31d8378

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1045dc6b43b76a005b1f1b81d0f3d7fd96ff735a89177a82d934dd3b4c52eca9",
    "cross_cats_sorted": [
      "cs.IR",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-12-05T19:03:39Z",
    "title_canon_sha256": "a2b6e3a3ba75e7a8b85e250895f8c048523681a80074fabd337bc789b46eff4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1131",
    "kind": "arxiv",
    "version": 1
  }
}