Pith Number

pith:CQVNROJ3

pith:2020:CQVNROJ3NWIAIILDEQ4YHGPB6E

not attested not anchored not stored refs pending

How to Put Users in Control of their Data in Federated Top-N Recommendation with Learning to Rank

Antonio Ferrara, Fedelucio Narducci, Tommaso Di Noia, Vito Walter Anelli, Yashar Deldjoo

arxiv:2008.07192 v4 · 2020-08-17 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CQVNROJ3NWIAIILDEQ4YHGPB6E}

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	2026-07-05T02:01:13.947870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

142ad8b93b6d9004216324398399e1f12da1fa11c73f3c5ec409238be190760d

Aliases

arxiv: 2008.07192 · arxiv_version: 2008.07192v4 · doi: 10.48550/arxiv.2008.07192 · pith_short_12: CQVNROJ3NWIA · pith_short_16: CQVNROJ3NWIAIILD · pith_short_8: CQVNROJ3

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/CQVNROJ3NWIAIILDEQ4YHGPB6E \
  | 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: 142ad8b93b6d9004216324398399e1f12da1fa11c73f3c5ec409238be190760d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01285d0356a9e6d5b6ffc01ba4a8541848dec88c4ed2f35536a7e347df063f06",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-08-17T10:13:15Z",
    "title_canon_sha256": "f5ecade241ecc3ae4529e4cc60e28346cc9a32b91ea26449004b453555bebc5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.07192",
    "kind": "arxiv",
    "version": 4
  }
}