Pith Number

pith:WRXACNEI

pith:2001:WRXACNEI6XZZZKPNWTAAPIF4XL

not attested not anchored not stored refs pending

When being Weak is Brave: Privacy in Recommender Systems

Ananth Y. Grama, Batul J. Mirza, Benjamin J. Keller, George Karypis, Naren Ramakrishnan

arxiv:cs/0105028 v1 · 2001-05-18 · cs.CR · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WRXACNEI6XZZZKPNWTAAPIF4XL}

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	2026-07-04T14:24:08.904232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b46e013488f5f39ca9edb4c007a0bcbacf1547a80dca03a17022314a9b171546

Aliases

arxiv: cs/0105028 · arxiv_version: cs/0105028v1 · doi: 10.48550/arxiv.cs/0105028 · pith_short_12: WRXACNEI6XZZ · pith_short_16: WRXACNEI6XZZZKPN · pith_short_8: WRXACNEI

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/WRXACNEI6XZZZKPNWTAAPIF4XL \
  | 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: b46e013488f5f39ca9edb4c007a0bcbacf1547a80dca03a17022314a9b171546

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0bd286e38f474fdec1ab9961357ffe5684cded74dafa6b305b028b0c2b97c3c5",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "",
    "primary_cat": "cs.CR",
    "submitted_at": "2001-05-18T18:47:10Z",
    "title_canon_sha256": "d3405c8b524f859b6148aba922d8e9bcc430d9a6f937054ad025d7a3d1853621"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0105028",
    "kind": "arxiv",
    "version": 1
  }
}