Pith Number

pith:R4UC6LB4

pith:2022:R4UC6LB4QLBIJZ77SJLSBT5HUR

not attested not anchored not stored refs pending

The 2020 Census Disclosure Avoidance System TopDown Algorithm

Ashwin Machanavajjhala, Brett Moran, Christine Heiss, Daniel Kifer, John M. Abowd, Matthew Spence, Micah Heineck, Pavel Zhuravlev, Philip Leclerc, Robert Ashmead, Robert Johns, Ryan Cumings-Menon, Simson Garfinkel, William Sexton

arxiv:2204.08986 v1 · 2022-04-19 · cs.CR · econ.EM · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R4UC6LB4QLBIJZ77SJLSBT5HUR}

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.

Cited by

1 paper in Pith

Bayesian Nonparametric Privacy-Preserving Synthetic Data Generation: I. Discrete Data

Receipt and verification

First computed	2026-07-05T04:16:09.719289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f282f2c3c82c284e7ff925720cfa7a443a6e56c345e8ac02447fbbc69747fbb

Aliases

arxiv: 2204.08986 · arxiv_version: 2204.08986v1 · doi: 10.48550/arxiv.2204.08986 · pith_short_12: R4UC6LB4QLBI · pith_short_16: R4UC6LB4QLBIJZ77 · pith_short_8: R4UC6LB4

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/R4UC6LB4QLBIJZ77SJLSBT5HUR \
  | 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: 8f282f2c3c82c284e7ff925720cfa7a443a6e56c345e8ac02447fbbc69747fbb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "759e2bd7caf863e4272aed7547965bda4aff5e516847f2a7da74d90b3ef3a747",
    "cross_cats_sorted": [
      "econ.EM",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2022-04-19T16:35:29Z",
    "title_canon_sha256": "878e4da480523083580a3d4b23ccbcecc4dd36ecab74b9407e0f713cd6871ce5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.08986",
    "kind": "arxiv",
    "version": 1
  }
}