Pith Number

pith:CQEWXJEF

pith:2026:CQEWXJEFV7EE3VHGYWQJ624URW

not attested not anchored not stored refs pending

An exponential mechanism based on quadratic approximations for fine-tuning machine learning models with privacy guarantees

Alberto Bocchinfuso, Christopher Stanley, Hoang Tran, Jiayi Wang, Jorge Ramirez, M. Paul Laiu

arxiv:2605.20521 v1 · 2026-05-19 · cs.LG · 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{CQEWXJEFV7EE3VHGYWQJ624URW}

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	2026-05-21T01:04:40.856000Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14096ba485afc84dd4e6c5a09f6b948dbd9e2bcd255ac256cc352b4cecccb0c5

Aliases

arxiv: 2605.20521 · arxiv_version: 2605.20521v1 · doi: 10.48550/arxiv.2605.20521 · pith_short_12: CQEWXJEFV7EE · pith_short_16: CQEWXJEFV7EE3VHG · pith_short_8: CQEWXJEF

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/CQEWXJEFV7EE3VHGYWQJ624URW \
  | 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: 14096ba485afc84dd4e6c5a09f6b948dbd9e2bcd255ac256cc352b4cecccb0c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf5d20df73ab1845605320d9141142eb12c52bf64a1d30f1b8bec6e4732cc512",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-19T21:43:22Z",
    "title_canon_sha256": "6579a65668032e9eba9ee9664e5583cb3f220e6065b2ff8aeea35e41987dcad2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20521",
    "kind": "arxiv",
    "version": 1
  }
}