Pith Number

pith:W32A5RSY

pith:2021:W32A5RSYZDTQVST3AV2FPXOF7D

not attested not anchored not stored refs pending

Practical and Secure Federated Recommendation with Personalized Masks

Di Chai, Junxue Zhang, Kai Chen, Kun Guo, Leye Wang, Liu Yang, Qiang Yang

arxiv:2109.02464 v2 · 2021-08-18 · cs.IR · cs.AI · 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{W32A5RSYZDTQVST3AV2FPXOF7D}

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	2026-07-05T04:32:51.323302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6f40ec658c8e70aca7b057457ddc5f8fb64b024be1d0efde06a76cb450ee6c9

Aliases

arxiv: 2109.02464 · arxiv_version: 2109.02464v2 · doi: 10.48550/arxiv.2109.02464 · pith_short_12: W32A5RSYZDTQ · pith_short_16: W32A5RSYZDTQVST3 · pith_short_8: W32A5RSY

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/W32A5RSYZDTQVST3AV2FPXOF7D \
  | 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: b6f40ec658c8e70aca7b057457ddc5f8fb64b024be1d0efde06a76cb450ee6c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c613b7143255f5c40123ebef4f9892c507b4e850cca1c32683dc72f7b0a88e3e",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-08-18T07:12:23Z",
    "title_canon_sha256": "6e7c732ee72297f1b02232384ca40d4c26f336ff8e5ecfc0edb230ed44edb7d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.02464",
    "kind": "arxiv",
    "version": 2
  }
}