Pith Number

pith:SMQPX7FE

pith:2025:SMQPX7FEJHEDO2AGSCYIVZQCHZ

not attested not anchored not stored refs pending

Unifying Laplace Mechanism with Instance Optimality in Differential Privacy

David Durfee

arxiv:2505.02798 v1 · 2025-05-05 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SMQPX7FEJHEDO2AGSCYIVZQCHZ}

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	2026-07-05T10:58:43.109494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9320fbfca449c837680690b08ae6023e7faa0e823749546386b7c8ee08a3d39f

Aliases

arxiv: 2505.02798 · arxiv_version: 2505.02798v1 · doi: 10.48550/arxiv.2505.02798 · pith_short_12: SMQPX7FEJHED · pith_short_16: SMQPX7FEJHEDO2AG · pith_short_8: SMQPX7FE

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/SMQPX7FEJHEDO2AGSCYIVZQCHZ \
  | 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: 9320fbfca449c837680690b08ae6023e7faa0e823749546386b7c8ee08a3d39f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f2c07a5c52a7cc723dcf3e428f7f82f24de93130aaf7c69e87b22b0f6bdd661",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2025-05-05T17:20:28Z",
    "title_canon_sha256": "eed114d461ec155a5680c3f680a774a1ef5507e290b907c9019d886ed6e8b9b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.02798",
    "kind": "arxiv",
    "version": 1
  }
}