Pith Number

pith:5V2GT4HD

pith:2022:5V2GT4HD5ZAWEGRNHD3ZTYGM34

not attested not anchored not stored refs pending

Backdoor Defense with Machine Unlearning

Cen Chen, Jianfeng Ma, Li Wang, Mingyuan Fan, Ximeng Liu, Yang Liu, Zhuo Ma

arxiv:2201.09538 v1 · 2022-01-24 · 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{5V2GT4HD5ZAWEGRNHD3ZTYGM34}

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

1 paper in Pith

SalUn: Empowering Machine Unlearning via Gradient-based Weight Saliency in Both Image Classification and Generation

Receipt and verification

First computed	2026-07-05T03:50:58.472890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed7469f0e3ee41621a2d38f799e0ccdf213707489a439a09fda12160cdf4ce46

Aliases

arxiv: 2201.09538 · arxiv_version: 2201.09538v1 · doi: 10.48550/arxiv.2201.09538 · pith_short_12: 5V2GT4HD5ZAW · pith_short_16: 5V2GT4HD5ZAWEGRN · pith_short_8: 5V2GT4HD

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/5V2GT4HD5ZAWEGRNHD3ZTYGM34 \
  | 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: ed7469f0e3ee41621a2d38f799e0ccdf213707489a439a09fda12160cdf4ce46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f506a8e24a437243b00851a61199e76e777c726e6aee0c3b1aef877c6ef2e1b",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2022-01-24T09:09:12Z",
    "title_canon_sha256": "29f951483dd4dd98c14bdd1d4ebe4cc25c571fa9ba655ba452af67703f931cf4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.09538",
    "kind": "arxiv",
    "version": 1
  }
}