Pith Number

pith:RIXDPNJI

pith:2016:RIXDPNJIVF7LS6CFZRBZNCVQD6

not attested not anchored not stored refs pending

Top-N Recommender System via Matrix Completion

Chong Peng, Qiang Cheng, Zhao Kang

arxiv:1601.04800 v1 · 2016-01-19 · cs.IR · cs.AI · 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{RIXDPNJIVF7LS6CFZRBZNCVQD6}

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	2026-05-18T01:22:31.802577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a2e37b528a97eb97845cc43968ab01fadfb024ac2d0ea7b26d02c353c41e181

Aliases

arxiv: 1601.04800 · arxiv_version: 1601.04800v1 · doi: 10.48550/arxiv.1601.04800 · pith_short_12: RIXDPNJIVF7L · pith_short_16: RIXDPNJIVF7LS6CF · pith_short_8: RIXDPNJI

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/RIXDPNJIVF7LS6CFZRBZNCVQD6 \
  | 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: 8a2e37b528a97eb97845cc43968ab01fadfb024ac2d0ea7b26d02c353c41e181

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa96e01a7ba3a2caefb5b93b2d4aed9236bcaeee2739862cfd4b226350620851",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2016-01-19T04:48:42Z",
    "title_canon_sha256": "bf69b0ddb68bfa8bf28a1d7dbc249228a7413a0cbbc28d437eba7eb2399e8b58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.04800",
    "kind": "arxiv",
    "version": 1
  }
}