Pith Number

pith:UMCRQ64Y

pith:2026:UMCRQ64YXPE22M22JTFQ75OMDD

not attested not anchored not stored refs pending

FloatDoor: Platform-Triggered Backdoors in LLMs

Felix M\"achtle, Jonas Sander, Nils Loose, Thomas Eisenbarth

arxiv:2606.19535 v1 · 2026-06-17 · 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{UMCRQ64YXPE22M22JTFQ75OMDD}

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	2026-06-19T16:12:28.094306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a305187b98bbc9ad335a4ccb0ff5cc18d3de9d90a8f4516588228a4cba6762d9

Aliases

arxiv: 2606.19535 · arxiv_version: 2606.19535v1 · doi: 10.48550/arxiv.2606.19535 · pith_short_12: UMCRQ64YXPE2 · pith_short_16: UMCRQ64YXPE22M22 · pith_short_8: UMCRQ64Y

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/UMCRQ64YXPE22M22JTFQ75OMDD \
  | 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: a305187b98bbc9ad335a4ccb0ff5cc18d3de9d90a8f4516588228a4cba6762d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d81cf3c4adbe605d77022dd0e0ed2c6621e0fb0dc38f0948d326b23f1e024e9",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-06-17T19:28:30Z",
    "title_canon_sha256": "5d8f0583ccd923832d1e6ca2092d3700f173a72e800366bfb7374379f4ee6f18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19535",
    "kind": "arxiv",
    "version": 1
  }
}