Pith Number

pith:FWL6EX3W

pith:2026:FWL6EX3WDESSHFHX4C7PHCQ4J4

not attested not anchored not stored refs pending

Two Sides of the Same Coin: Learning the Backdoor to Remove the Backdoor

Christian Wressnegger, Qi Zhao

arxiv:2607.05748 v1 · 2026-07-07 · 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{FWL6EX3WDESSHFHX4C7PHCQ4J4}

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	2026-07-08T01:18:43.773598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d97e25f7619252394f7e0bef38a1c4f301780491559def468d6e2504d967f29

Aliases

arxiv: 2607.05748 · arxiv_version: 2607.05748v1 · doi: 10.48550/arxiv.2607.05748 · pith_short_12: FWL6EX3WDESS · pith_short_16: FWL6EX3WDESSHFHX · pith_short_8: FWL6EX3W

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/FWL6EX3WDESSHFHX4C7PHCQ4J4 \
  | 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: 2d97e25f7619252394f7e0bef38a1c4f301780491559def468d6e2504d967f29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fec3544f31835cb0327352d0d000306cb094bb218daa6f45293d09830b709b22",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-07T02:11:08Z",
    "title_canon_sha256": "c91b16ae5d1f21eb5edcb4f65a41435ae732ac2d8caa867c35e5ccb9097efcae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.05748",
    "kind": "arxiv",
    "version": 1
  }
}