Pith Number

pith:W3Z5EQMA

pith:2026:W3Z5EQMAO34MPYHW3ZYFCRJDQ3

not attested not anchored not stored refs pending

PrefixWall: Mitigating Prefix Caching Side Channels in Shared LLM Systems

Konstantinos Papaioannou, Marco Guarnieri, Panagiotis Georgios Pennas, Thaleia Dimitra Doudali

arxiv:2603.10726 v2 · 2026-03-11 · cs.CR · cs.DC · 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{W3Z5EQMAO34MPYHW3ZYFCRJDQ3}

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	2026-05-21T01:05:17.653277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6f3d2418076f8c7e0f6de7051452386d85fbb313699177f5dcaaa581a6af27e

Aliases

arxiv: 2603.10726 · arxiv_version: 2603.10726v2 · doi: 10.48550/arxiv.2603.10726 · pith_short_12: W3Z5EQMAO34M · pith_short_16: W3Z5EQMAO34MPYHW · pith_short_8: W3Z5EQMA

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/W3Z5EQMAO34MPYHW3ZYFCRJDQ3 \
  | 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: b6f3d2418076f8c7e0f6de7051452386d85fbb313699177f5dcaaa581a6af27e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f521f9214dafb2cd542cc6b15a49b538efff332c75d72d0e2f0c428a5263bdd",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-03-11T12:59:12Z",
    "title_canon_sha256": "066d0ed4f5f2d4e1d8a1496febf5630e24d401056200da4e1ddb007332d4de6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.10726",
    "kind": "arxiv",
    "version": 2
  }
}