Pith Number

pith:2WWC3WVH

pith:2019:2WWC3WVHCXTPK2BPQF3PC5GUY4

not attested not anchored not stored refs pending

A Longitudinal Analysis of Online Ad-Blocking Blacklists

Mohamed Ali Kaafar, Muhammad Ikram, Saad Sajid Hashmi

arxiv:1906.00166 v1 · 2019-06-01 · 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{2WWC3WVHCXTPK2BPQF3PC5GUY4}

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	2026-05-17T23:44:27.952681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5ac2ddaa715e6f5682f8176f174d4c70ba6e37dfd1075649d3b31f005c4f004

Aliases

arxiv: 1906.00166 · arxiv_version: 1906.00166v1 · doi: 10.48550/arxiv.1906.00166 · pith_short_12: 2WWC3WVHCXTP · pith_short_16: 2WWC3WVHCXTPK2BP · pith_short_8: 2WWC3WVH

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/2WWC3WVHCXTPK2BPQF3PC5GUY4 \
  | 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: d5ac2ddaa715e6f5682f8176f174d4c70ba6e37dfd1075649d3b31f005c4f004

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3771b92d08358cb145459f8b3ee6e7e0f1c7debddd7b13152d1d228fbd18bd65",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-06-01T06:52:18Z",
    "title_canon_sha256": "0013fe2b7080e977b0a770a8989952a8d786e11d815e5dd007174e350baee064"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.00166",
    "kind": "arxiv",
    "version": 1
  }
}