Pith Number

pith:Y6KPJSB2

pith:2025:Y6KPJSB2EB5X4XACT3DTJQMTGC

not attested not anchored not stored refs pending

Don't Forget It! Conditional Sparse Autoencoder Clamping Works for Unlearning

Andrii Shportko (1), Gustavo Mercier (1), Matthew Khoriaty (1), Zach Wood-Doughty (1) ((1) Northwestern University)

arxiv:2503.11127 v1 · 2025-03-14 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y6KPJSB2EB5X4XACT3DTJQMTGC}

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	2026-07-05T10:31:12.513469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c794f4c83a207b7e5c029ec734c19330b7d42052a9961acfe55a9a90d7265fd1

Aliases

arxiv: 2503.11127 · arxiv_version: 2503.11127v1 · doi: 10.48550/arxiv.2503.11127 · pith_short_12: Y6KPJSB2EB5X · pith_short_16: Y6KPJSB2EB5X4XAC · pith_short_8: Y6KPJSB2

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/Y6KPJSB2EB5X4XACT3DTJQMTGC \
  | 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: c794f4c83a207b7e5c029ec734c19330b7d42052a9961acfe55a9a90d7265fd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00f0daecc810f5bc3e180ae2b30e53e39af71800b7230a4dc8bc1151e3c99cad",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-03-14T06:43:19Z",
    "title_canon_sha256": "3c854291dc042c60f80da80d712c99b2429ad685ea5246f53a3a0e567b36b8cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.11127",
    "kind": "arxiv",
    "version": 1
  }
}