Pith Number

pith:PL2ISBQ2

pith:2011:PL2ISBQ2UFMWNH5V5PXNRUFX4S

not attested not anchored not stored refs pending

An Information-Theoretic Privacy Criterion for Query Forgery in Information Retrieval

David Rebollo-Monedero, Javier Parra-Arnau, Jordi Forn\'e

arxiv:1111.4045 v1 · 2011-11-17 · cs.IT · cs.CR · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PL2ISBQ2UFMWNH5V5PXNRUFX4S}

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	2026-05-18T02:21:29.176672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7af489061aa159669fb5ebeed8d0b7e48c86435841b318ddc6984d7786e84cee

Aliases

arxiv: 1111.4045 · arxiv_version: 1111.4045v1 · doi: 10.48550/arxiv.1111.4045 · pith_short_12: PL2ISBQ2UFMW · pith_short_16: PL2ISBQ2UFMWNH5V · pith_short_8: PL2ISBQ2

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/PL2ISBQ2UFMWNH5V5PXNRUFX4S \
  | 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: 7af489061aa159669fb5ebeed8d0b7e48c86435841b318ddc6984d7786e84cee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3861e8e3e2b0ad021d6659493808c6145a6f600786eff6cadca4de973531adc",
    "cross_cats_sorted": [
      "cs.CR",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-11-17T10:06:49Z",
    "title_canon_sha256": "83459403fe004545606df159f357c5ac599309562d8c4074f20e5083a83ed321"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.4045",
    "kind": "arxiv",
    "version": 1
  }
}