Pith Number

pith:SY4WZP32

pith:2026:SY4WZP32SRNSLLWDP64QHQ3S2A

not attested not anchored not stored refs pending

On the Internet, Nobody Knows You're an LLM Bot: Unmasking Web Agents with Multi-Layer Fingerprinting

Cl\'ementine Maurice, Iliana Fayolle, Pierre Laperdrix, Samuel P\'elissier, Sihem Bouhenniche, Walter Rudametkin

arxiv:2606.30119 v1 · 2026-06-29 · cs.CR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SY4WZP32SRNSLLWDP64QHQ3S2A}

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	2026-06-30T02:17:50.440658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96396cbf7a945b25aec37fb903c372d02ed8fccd1eb7c0327e0b75a9515cd4c6

Aliases

arxiv: 2606.30119 · arxiv_version: 2606.30119v1 · doi: 10.48550/arxiv.2606.30119 · pith_short_12: SY4WZP32SRNS · pith_short_16: SY4WZP32SRNSLLWD · pith_short_8: SY4WZP32

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/SY4WZP32SRNSLLWDP64QHQ3S2A \
  | 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: 96396cbf7a945b25aec37fb903c372d02ed8fccd1eb7c0327e0b75a9515cd4c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60f05f1f7d5ebeae94dbb124e6f9216e62a2ad335cbd9141bc6405fa0e345a46",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-06-29T10:51:13Z",
    "title_canon_sha256": "9ec9cea0fdb9fc5150ed41efa7835804908804396e0f9bd43b5153cfd8fee3af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.30119",
    "kind": "arxiv",
    "version": 1
  }
}