Pith Number

pith:K25EJZHN

pith:2026:K25EJZHN2VBFBR4PNBT3EJBQPJ

not attested not anchored not stored refs pending

From Parameters to Feature Space: Task Arithmetic for Backdoor Mitigation in Model Merging

Haodong Li, Weixiang Li, Wenjian Luo, Yamin Hu, Yiya Diao, Zhenqian Zhu

arxiv:2606.12498 v1 · 2026-06-10 · cs.CR · 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{K25EJZHN2VBFBR4PNBT3EJBQPJ}

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	2026-06-12T00:07:52.483863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56ba44e4edd54250c78f6867b224307a59e5e6898a489561a4d92ac32f899623

Aliases

arxiv: 2606.12498 · arxiv_version: 2606.12498v1 · doi: 10.48550/arxiv.2606.12498 · pith_short_12: K25EJZHN2VBF · pith_short_16: K25EJZHN2VBFBR4P · pith_short_8: K25EJZHN

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/K25EJZHN2VBFBR4PNBT3EJBQPJ \
  | 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: 56ba44e4edd54250c78f6867b224307a59e5e6898a489561a4d92ac32f899623

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cddd26a47efb9d86c35be399ed3db28a4c0d433ed2ee48b0a49a6d4d311baa5",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-06-10T13:51:36Z",
    "title_canon_sha256": "86be209864f0221beaed63d72ff1b99a0d167ecd44e8c354ca05d7a9a9588dab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.12498",
    "kind": "arxiv",
    "version": 1
  }
}