Pith Number

pith:2AKZAKPC

pith:2025:2AKZAKPCMWCTUPWLX3ESEY4UAE

not attested not anchored not stored refs pending

Not Every Token Needs Forgetting: Selective Unlearning to Limit Change in Utility in Large Language Model Unlearning

Anil Ramakrishna, Kai-Wei Chang, Rahul Gupta, Volkan Cevher, Yixin Wan

arxiv:2506.00876 v1 · 2025-06-01 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2AKZAKPCMWCTUPWLX3ESEY4UAE}

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

2 papers in Pith

Unlearning What Matters: Token-Level Attribution for Precise Language Model Unlearning

Less is More: Geometric Unlearning for LLMs with Minimal Data Disclosure

Receipt and verification

First computed	2026-07-05T11:13:42.126525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0159029e265853a3ecbbec92263940139bd985ac4540edba7054b36ac47db68

Aliases

arxiv: 2506.00876 · arxiv_version: 2506.00876v1 · doi: 10.48550/arxiv.2506.00876 · pith_short_12: 2AKZAKPCMWCT · pith_short_16: 2AKZAKPCMWCTUPWL · pith_short_8: 2AKZAKPC

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/2AKZAKPCMWCTUPWLX3ESEY4UAE \
  | 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: d0159029e265853a3ecbbec92263940139bd985ac4540edba7054b36ac47db68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff6d409fc1a0f14def5e3a3557fa642cb4d10ead83673b33550701cf9b27fa19",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-06-01T07:36:45Z",
    "title_canon_sha256": "39648186af3e5c4aa310ccd8bda0c2706278883af3f6e0817b63f5905d236eec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.00876",
    "kind": "arxiv",
    "version": 1
  }
}