Pith Number

pith:56OMW2O2

pith:2019:56OMW2O2EIXP4JQDBDLVM55ST7

not attested not anchored not stored refs pending

Recommender Systems Fairness Evaluation via Generalized Cross Entropy

Alejandro Bellogin, Hamed Zamani, Tommaso Di Noia, Vito Walter Anelli, Yashar Deldjoo

arxiv:1908.06708 v1 · 2019-08-19 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{56OMW2O2EIXP4JQDBDLVM55ST7}

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	2026-07-04T23:58:18.730170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef9ccb69da222efe260308d75677b29fe94e744314f6ffdfe8cd5573d121f632

Aliases

arxiv: 1908.06708 · arxiv_version: 1908.06708v1 · doi: 10.48550/arxiv.1908.06708 · pith_short_12: 56OMW2O2EIXP · pith_short_16: 56OMW2O2EIXP4JQD · pith_short_8: 56OMW2O2

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/56OMW2O2EIXP4JQDBDLVM55ST7 \
  | 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: ef9ccb69da222efe260308d75677b29fe94e744314f6ffdfe8cd5573d121f632

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ed4ed759de9f9a2f54180d6f27876937f98785e82f869719f62a30c883b477c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-08-19T11:36:54Z",
    "title_canon_sha256": "4669afd94f5c46abe014cdc1703aa6f9b9932a2d53a9b1df2c4a35b0b9b54152"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06708",
    "kind": "arxiv",
    "version": 1
  }
}