Pith Number

pith:UP26OLP2

pith:2009:UP26OLP2RK33WSFMD57QWVNKSN

not attested not anchored not stored refs pending

Optimizing Histogram Queries under Differential Privacy

Andrew McGregor, Chao Li, Gerome Miklau, Michael Hay, Vibhor Rastogi

arxiv:0912.4742 v2 · 2009-12-23 · cs.DB · 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{UP26OLP2RK33WSFMD57QWVNKSN}

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	2026-05-18T04:41:25.120030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3f5e72dfa8ab7bb48ac1f7f0b55aa936cff945823eef125dc052b96e9736dfe

Aliases

arxiv: 0912.4742 · arxiv_version: 0912.4742v2 · doi: 10.48550/arxiv.0912.4742 · pith_short_12: UP26OLP2RK33 · pith_short_16: UP26OLP2RK33WSFM · pith_short_8: UP26OLP2

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/UP26OLP2RK33WSFMD57QWVNKSN \
  | 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: a3f5e72dfa8ab7bb48ac1f7f0b55aa936cff945823eef125dc052b96e9736dfe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "359a437de4dd618968deaa024ca0442c5c7bf56be05554fbd755f9204c821868",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2009-12-23T21:22:50Z",
    "title_canon_sha256": "c0eb218f50c99ff4d49c79e5301c1fb02dbfac59aaa490a60fe13c10d07861b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4742",
    "kind": "arxiv",
    "version": 2
  }
}