Pith Number

pith:U4OWUOB7

pith:2026:U4OWUOB73OG6PYPAOZZJZ7QHD3

not attested not anchored not stored refs pending

Credit-assigned Policy Gradient for Early Stage Retrieval in Two-stage Ranking

Ana-Roxana Pop, Ariel Evnine, Haruka Kiyohara, Israel Nir, Mihaela Curmei, Nitzan Razin, Sarah Dean, Shankar Kalyanaraman, Thorsten Joachims, Udi Weinsberg

arxiv:2605.26385 v1 · 2026-05-25 · cs.IR · cs.AI · 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{U4OWUOB73OG6PYPAOZZJZ7QHD3}

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	2026-05-27T01:05:15.397023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a71d6a383fdb8de7e1e076729cfe071eff41e61b1d0ea079170403cf1f798677

Aliases

arxiv: 2605.26385 · arxiv_version: 2605.26385v1 · doi: 10.48550/arxiv.2605.26385 · pith_short_12: U4OWUOB73OG6 · pith_short_16: U4OWUOB73OG6PYPA · pith_short_8: U4OWUOB7

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/U4OWUOB73OG6PYPAOZZJZ7QHD3 \
  | 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: a71d6a383fdb8de7e1e076729cfe071eff41e61b1d0ea079170403cf1f798677

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36b073b4f41ab8cab6d2bb6d0daac8658756d44259fd59163e4dd9b91a9048b2",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-05-25T23:17:37Z",
    "title_canon_sha256": "33a3be9329d7bdca8fe0c8318e88d207f9f41ff374e50b4ea34706df0e92d725"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.26385",
    "kind": "arxiv",
    "version": 1
  }
}