Pith Number

pith:CWRBOLQO

pith:2020:CWRBOLQODXGEOJWMF3CUMHQRMM

not attested not anchored not stored refs pending

Differential Privacy of Hierarchical Census Data: An Optimization Approach

Ferdinando Fioretto, Keyu Zhu, Pascal Van Hentenryck

arxiv:2006.15673 v2 · 2020-06-28 · cs.DB · cs.AI · 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{CWRBOLQODXGEOJWMF3CUMHQRMM}

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	2026-07-05T02:38:29.328676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15a2172e0e1dcc4726cc2ec5461e11632503e9c0a4fb167e2d5701fc8424af25

Aliases

arxiv: 2006.15673 · arxiv_version: 2006.15673v2 · doi: 10.48550/arxiv.2006.15673 · pith_short_12: CWRBOLQODXGE · pith_short_16: CWRBOLQODXGEOJWM · pith_short_8: CWRBOLQO

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/CWRBOLQODXGEOJWMF3CUMHQRMM \
  | 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: 15a2172e0e1dcc4726cc2ec5461e11632503e9c0a4fb167e2d5701fc8424af25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ff668e8fb940e35084e1ca00a3ee3de850d70307ac79bb9d2bbe484bfd762b3",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2020-06-28T18:19:55Z",
    "title_canon_sha256": "f1bac0dc303df23f009376f0f6ea22236ef113a342821ac3f8616383b98a10ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.15673",
    "kind": "arxiv",
    "version": 2
  }
}