Pith Number

pith:JBCBU7HH

pith:2024:JBCBU7HHMAGNH2RFETO7K4H6YI

not attested not anchored not stored refs pending

Pencil: Private and Extensible Collaborative Learning without the Non-Colluding Assumption

Ke Xu, Mingwei Xu, Qi Li, Xuanqi Liu, Zhuotao Liu

arxiv:2403.11166 v1 · 2024-03-17 · 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{JBCBU7HHMAGNH2RFETO7K4H6YI}

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	2026-07-05T07:57:12.614879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48441a7ce7600cd3ea2524ddf570fec22759315ea2d5b62e14c582640a9ad29a

Aliases

arxiv: 2403.11166 · arxiv_version: 2403.11166v1 · doi: 10.48550/arxiv.2403.11166 · pith_short_12: JBCBU7HHMAGN · pith_short_16: JBCBU7HHMAGNH2RF · pith_short_8: JBCBU7HH

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/JBCBU7HHMAGNH2RFETO7K4H6YI \
  | 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: 48441a7ce7600cd3ea2524ddf570fec22759315ea2d5b62e14c582640a9ad29a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7c0a4d5d6aeb3fc943e2b3e67210566ff09ddacb482e20315a1de06205d02a7",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2024-03-17T10:26:41Z",
    "title_canon_sha256": "519c541ac1c28df0cef5dbc060303002799f6d675671c53fb324887d22c64506"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.11166",
    "kind": "arxiv",
    "version": 1
  }
}