Pith Number

pith:4LX4554O

pith:2025:4LX4554OM4JUWSFSA4FCVBTVBU

not attested not anchored not stored refs pending

Are Recommenders Self-Aware? Label-Free Recommendation Performance Estimation via Model Uncertainty

Guohao Jian, Jiayu Li, Min Zhang, Qingyao Ai, Weizhi Ma, Zhiqiang Guo, Ziyi Ye

arxiv:2507.23208 v1 · 2025-07-31 · cs.IR · 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{4LX4554OM4JUWSFSA4FCVBTVBU}

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	2026-07-05T11:46:07.546130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2efcef78e67134b48b2070a2a86750d08aa25f78fdc6c82115b36429c43358a

Aliases

arxiv: 2507.23208 · arxiv_version: 2507.23208v1 · doi: 10.48550/arxiv.2507.23208 · pith_short_12: 4LX4554OM4JU · pith_short_16: 4LX4554OM4JUWSFS · pith_short_8: 4LX4554O

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/4LX4554OM4JUWSFSA4FCVBTVBU \
  | 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: e2efcef78e67134b48b2070a2a86750d08aa25f78fdc6c82115b36429c43358a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7245451e785e3751f3107b3d6454e906e320198cbbf51f8533a427ed234e7b15",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2025-07-31T03:04:34Z",
    "title_canon_sha256": "c85cd9c02937dfa096c742dfc376e314abfdb2e81aef7f504171cc74e42fe92d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.23208",
    "kind": "arxiv",
    "version": 1
  }
}