Pith Number

pith:QHVFVXMV

pith:2023:QHVFVXMVVDQKOV4YCW7IN2LYCY

not attested not anchored not stored refs pending

Boosting Big Brother: Attacking Search Engines with Encodings

Ilia Shumailov, Luca Pajola, Mauro Conti, Nicholas Boucher, Ross Anderson

arxiv:2304.14031 v2 · 2023-04-27 · cs.CR · 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{QHVFVXMVVDQKOV4YCW7IN2LYCY}

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	2026-07-05T06:35:08.750856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81ea5add95a8e0a7579815be86e9781624ad7d81ac77b6d70cd3e3b3f6df440a

Aliases

arxiv: 2304.14031 · arxiv_version: 2304.14031v2 · doi: 10.48550/arxiv.2304.14031 · pith_short_12: QHVFVXMVVDQK · pith_short_16: QHVFVXMVVDQKOV4Y · pith_short_8: QHVFVXMV

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/QHVFVXMVVDQKOV4YCW7IN2LYCY \
  | 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: 81ea5add95a8e0a7579815be86e9781624ad7d81ac77b6d70cd3e3b3f6df440a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba5c2d93e5f23752e5f2bbfc9c81f68e7648c7367b3e0c43300a8b757e8f0ff1",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2023-04-27T08:56:42Z",
    "title_canon_sha256": "ad81565e756679bac5078e44888da6e1c6ab8503aaff3faeea1bfd30481057de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.14031",
    "kind": "arxiv",
    "version": 2
  }
}