Pith Number

pith:KHLRLZVV

pith:2025:KHLRLZVVRXZDAZ3HEGVE2E4EGV

not attested not anchored not stored refs pending

Erased but Not Forgotten: How Backdoors Compromise Concept Erasure

Anna Rohrbach, Jonas Henry Grebe, Marcus Rohrbach, Tobias Braun

arxiv:2504.21072 v2 · 2025-04-29 · cs.CR · cs.AI · 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{KHLRLZVVRXZDAZ3HEGVE2E4EGV}

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

2 papers in Pith

Whispers in the Noise: Surrogate-Guided Concept Awakening via a Multi-Agent Framework

Token by Token, Compromised: Backdoor Vulnerabilities in Unified Autoregressive Models

Receipt and verification

First computed	2026-06-02T01:03:31.415475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51d715e6b58df230676721aa4d13843578927a8ce61886b92ec20d25e77ba7d1

Aliases

arxiv: 2504.21072 · arxiv_version: 2504.21072v2 · doi: 10.48550/arxiv.2504.21072 · pith_short_12: KHLRLZVVRXZD · pith_short_16: KHLRLZVVRXZDAZ3H · pith_short_8: KHLRLZVV

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/KHLRLZVVRXZDAZ3HEGVE2E4EGV \
  | 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: 51d715e6b58df230676721aa4d13843578927a8ce61886b92ec20d25e77ba7d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "608206e38717fae043d56ec1776cf3b2275fef6f82a37cf9c37799ec91e6ba9c",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-04-29T16:13:06Z",
    "title_canon_sha256": "33af044d640b7523dc4480146f3ea5e347149c549545a390fa40d0668a4ec2bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.21072",
    "kind": "arxiv",
    "version": 2
  }
}