Pith Number

pith:KABOQGHM

pith:2011:KABOQGHMI5KYICCTWDM6CRPE64

not attested not anchored not stored refs pending

Privacy Preserving Spam Filtering

Bhiksha Raj, Manas A. Pathak, Mehrbod Sharifi

arxiv:1102.4021 v2 · 2011-02-19 · cs.LG · 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{KABOQGHMI5KYICCTWDM6CRPE64}

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.

Cited by

1 paper in Pith

Half-Moon Cookie: Private, Similarity-Based Blocklisting with TOCTOU-Attack Resilience

Receipt and verification

First computed	2026-05-18T04:12:54.692239Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5002e818ec4755840853b0d9e145e4f70a6cc968168c3e1d3a00c30510d2e2bd

Aliases

arxiv: 1102.4021 · arxiv_version: 1102.4021v2 · doi: 10.48550/arxiv.1102.4021 · pith_short_12: KABOQGHMI5KY · pith_short_16: KABOQGHMI5KYICCT · pith_short_8: KABOQGHM

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/KABOQGHMI5KYICCTWDM6CRPE64 \
  | 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: 5002e818ec4755840853b0d9e145e4f70a6cc968168c3e1d3a00c30510d2e2bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bf1621e8efe1cdc6a052ab71783f2ff62f3384883c691f9443be213db5af3cd",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2011-02-19T20:40:56Z",
    "title_canon_sha256": "d6d9e338007bef25331b2b26438b1c0e112663bb571d41b936fcdbee5008cd88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4021",
    "kind": "arxiv",
    "version": 2
  }
}