Pith Number

pith:TQGFFC7F

pith:2026:TQGFFC7FBMDWN7FR7UPF6PYNPS

not attested not anchored not stored refs pending

Crossing the Margin Cliff: Toward Relearn-Robust LLM Unlearning via Margin Calibration

Chih-Hong Cheng, Jiaxu Liu, Xiangyu Yin, Zhen Chen

arxiv:2607.27836 v1 · 2026-07-30 · 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{TQGFFC7FBMDWN7FR7UPF6PYNPS}

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	2026-07-31T01:34:26.480253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

9c0c528be50b0766fcb1fd1e5f3f0d7cb7f9c230ca1d584dbf5b1dc93ed15fff

Aliases

arxiv: 2607.27836 · arxiv_version: 2607.27836v1 · doi: 10.48550/arxiv.2607.27836 · pith_short_12: TQGFFC7FBMDW · pith_short_16: TQGFFC7FBMDWN7FR · pith_short_8: TQGFFC7F

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/TQGFFC7FBMDWN7FR7UPF6PYNPS \
  | 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: 9c0c528be50b0766fcb1fd1e5f3f0d7cb7f9c230ca1d584dbf5b1dc93ed15fff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d0334eed805c6689e86eb8cb728f9e428b151207413b42029f1c724950a8e83",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-07-30T08:15:58Z",
    "title_canon_sha256": "658895d417f1e7cb1f3a29e2fa40716fbe9604b4d53275734e8f5f94a5e205a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.27836",
    "kind": "arxiv",
    "version": 1
  }
}