Pith Number

pith:RFD6F5GD

pith:2018:RFD6F5GD2NIASOXD6IZS7U3QNT

not attested not anchored not stored refs pending

Noise Contrastive Estimation for Scalable Linear Models for One-Class Collaborative Filtering

Chee Loong Soon, Ga Wu, Himanshu Rai, Maksims Volkovs, Scott Sanner

arxiv:1811.00697 v1 · 2018-11-02 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RFD6F5GD2NIASOXD6IZS7U3QNT}

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	2026-05-18T00:01:42.472803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8947e2f4c3d350093ae3f2332fd3706ce9a2c8ce303227bedfa5ca8dbf225680

Aliases

arxiv: 1811.00697 · arxiv_version: 1811.00697v1 · doi: 10.48550/arxiv.1811.00697 · pith_short_12: RFD6F5GD2NIA · pith_short_16: RFD6F5GD2NIASOXD · pith_short_8: RFD6F5GD

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/RFD6F5GD2NIASOXD6IZS7U3QNT \
  | 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: 8947e2f4c3d350093ae3f2332fd3706ce9a2c8ce303227bedfa5ca8dbf225680

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "559efa2143b177af0d05aac2a134489ec932d332905eda14918339533df4bbff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2018-11-02T01:23:51Z",
    "title_canon_sha256": "0ea030f3f348a5d5e36a7f38d545cdf24139e893633a3a18e917df1b795f000c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.00697",
    "kind": "arxiv",
    "version": 1
  }
}