Pith Number

pith:Z4TCHZSN

pith:2025:Z4TCHZSNZKX75UTE57YOGPC2EF

not attested not anchored not stored refs pending

SHA256 at SemEval-2025 Task 4: Selective Amnesia -- Constrained Unlearning for Large Language Models via Knowledge Isolation

Kuan-Hao Huang, Saransh Agrawal

arxiv:2504.12996 v1 · 2025-04-17 · cs.CL · 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{Z4TCHZSNZKX75UTE57YOGPC2EF}

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	2026-07-05T10:50:35.927673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf2623e64dcaaffed264eff0e33c5a216877e6c43c83f7e7d72780089fe77cac

Aliases

arxiv: 2504.12996 · arxiv_version: 2504.12996v1 · doi: 10.48550/arxiv.2504.12996 · pith_short_12: Z4TCHZSNZKX7 · pith_short_16: Z4TCHZSNZKX75UTE · pith_short_8: Z4TCHZSN

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/Z4TCHZSNZKX75UTE57YOGPC2EF \
  | 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: cf2623e64dcaaffed264eff0e33c5a216877e6c43c83f7e7d72780089fe77cac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fccb1573817f19657c6b252eceae0c00d8fe1873afbb4e49269365c24f9b8b8e",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-04-17T15:05:40Z",
    "title_canon_sha256": "2562a57951c52e6585adba51b8171da72c53c9ca26f5e12e8d8ee2aa66193f9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.12996",
    "kind": "arxiv",
    "version": 1
  }
}