Pith Number

pith:3UY4LHC2

pith:2025:3UY4LHC2UH6I3RUE7PUYXGS7IG

not attested not anchored not stored refs pending

Approximate Differential Privacy of the $\ell_2$ Mechanism

Alexander Yu, Alex Kulesza, Matthew Joseph

arxiv:2502.15929 v1 · 2025-02-21 · 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{3UY4LHC2UH6I3RUE7PUYXGS7IG}

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	2026-07-05T10:18:18.546823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd31c59c5aa1fc8dc684fbe98b9a5f41ad9388ca8d10a1735dc5c0b0c3ebcdc0

Aliases

arxiv: 2502.15929 · arxiv_version: 2502.15929v1 · doi: 10.48550/arxiv.2502.15929 · pith_short_12: 3UY4LHC2UH6I · pith_short_16: 3UY4LHC2UH6I3RUE · pith_short_8: 3UY4LHC2

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/3UY4LHC2UH6I3RUE7PUYXGS7IG \
  | 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: dd31c59c5aa1fc8dc684fbe98b9a5f41ad9388ca8d10a1735dc5c0b0c3ebcdc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "708ca72ffd93fe691a8ceb1b14834026a3bf77100f9f0572731d4211da7b7482",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-02-21T20:56:34Z",
    "title_canon_sha256": "17b06130a2768e74460eb059ae4f23c268de508bf04d3f043e90b53f1c6944de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.15929",
    "kind": "arxiv",
    "version": 1
  }
}