Pith Number

pith:6TKQO4FB

pith:2026:6TKQO4FBQVXEUPDVI3GZKQCDLV

not attested not anchored not stored refs pending

ALDEN: Boosting Private Data Extraction from Retrieval-Augmented Generation Systems via Active Learning and Distribution Estimation

Danjue Chen, Jianfeng He, Ning Wang, Shixiong Li, Tao Li, Xingyu Lyu, Yidan Hu, Yimin Chen

arxiv:2605.18762 v1 · 2026-04-10 · cs.IR · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6TKQO4FBQVXEUPDVI3GZKQCDLV}

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	2026-05-20T00:06:20.579141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4d50770a1856e4a3c7546cd9540435d68399a2f5451cd24bf54faf09a468fb7

Aliases

arxiv: 2605.18762 · arxiv_version: 2605.18762v1 · doi: 10.48550/arxiv.2605.18762 · pith_short_12: 6TKQO4FBQVXE · pith_short_16: 6TKQO4FBQVXEUPDV · pith_short_8: 6TKQO4FB

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/6TKQO4FBQVXEUPDVI3GZKQCDLV \
  | 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: f4d50770a1856e4a3c7546cd9540435d68399a2f5451cd24bf54faf09a468fb7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b122deeb0c2b9089b2037e0fec24da8b08d23604189605b483c7cf0028f381a",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-04-10T08:26:40Z",
    "title_canon_sha256": "84b62af56bdd3e9013de3212d906644631c95d7f9b922f46cfe5721362e6a7be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.18762",
    "kind": "arxiv",
    "version": 1
  }
}