Pith Number

pith:WMWYWDDB

pith:2025:WMWYWDDBF3HE5NEVYEYN33D6GB

not attested not anchored not stored refs pending

Exact Unlearning of Finetuning Data via Model Merging at Scale

Aditi Raghunathan, Amrith Setlur, Kartik Srinivas, Kevin Kuo, Virginia Smith

arxiv:2504.04626 v1 · 2025-04-06 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WMWYWDDBF3HE5NEVYEYN33D6GB}

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

3 papers in Pith

FedUP: One-Shot Federated Unlearning via Centroid-Guided Plug-in Filters

Improving LLM Unlearning Robustness via Random Perturbations

Unlearning with Asymmetric Sources: Improved Unlearning-Utility Trade-off with Public Data

Receipt and verification

First computed	2026-07-05T10:45:27.295110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b32d8b0c612ece4eb495c130ddec7e3067d4025eb277287e0fe3bdcd8f1fa47b

Aliases

arxiv: 2504.04626 · arxiv_version: 2504.04626v1 · doi: 10.48550/arxiv.2504.04626 · pith_short_12: WMWYWDDBF3HE · pith_short_16: WMWYWDDBF3HE5NEV · pith_short_8: WMWYWDDB

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/WMWYWDDBF3HE5NEVYEYN33D6GB \
  | 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: b32d8b0c612ece4eb495c130ddec7e3067d4025eb277287e0fe3bdcd8f1fa47b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2b9fc18edf0bb0fbba251f22f5f329f95b3b2f3196e62d5c31f07ff8adf4dfe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-04-06T21:24:29Z",
    "title_canon_sha256": "748ae16792a35b193649f72179352b802bdb6e3ca8fe3b5cad7a806a021ab108"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.04626",
    "kind": "arxiv",
    "version": 1
  }
}