Pith Number

pith:AKAMACWO

pith:2018:AKAMACWODBAW7I3N3YKIBZ4VOL

not attested not anchored not stored refs pending

Differentially Private User-based Collaborative Filtering Recommendation Based on K-means Clustering

Hong Zhong, Lin Chen, Shun Zhang, Yu Wang, Zhili Chen

arxiv:1812.01782 v1 · 2018-12-05 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AKAMACWODBAW7I3N3YKIBZ4VOL}

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	2026-05-17T23:59:00.662292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0280c00ace18416fa36dde1480e79572df5cc9fe714a0b6ad40b0466c8a12126

Aliases

arxiv: 1812.01782 · arxiv_version: 1812.01782v1 · doi: 10.48550/arxiv.1812.01782 · pith_short_12: AKAMACWODBAW · pith_short_16: AKAMACWODBAW7I3N · pith_short_8: AKAMACWO

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/AKAMACWODBAW7I3N3YKIBZ4VOL \
  | 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: 0280c00ace18416fa36dde1480e79572df5cc9fe714a0b6ad40b0466c8a12126

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0216667c73be464d278dee686ee7abd55be735a6825126e24d42a664f386e39",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2018-12-05T02:17:23Z",
    "title_canon_sha256": "bad78c634052b54ffd6f84e9ab0e8930f1e2b0aeaf1a71f003c944f7f663ad83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.01782",
    "kind": "arxiv",
    "version": 1
  }
}