Pith Number

pith:SN2NVYBI

pith:2026:SN2NVYBID5RMCFLPP6FK7ZHW7J

not attested not anchored not stored refs pending

Real-Time Hard Negative Sampling via LLM-based Clustering for Large-Scale Two-Tower Retrieval

Aameek Singh, Harrison (Zihao) Zhao, Ivan Ji, Lei Huang, Liuyi Hu, Max (Xiangjun) Fan, Qunshu Zhang

arxiv:2607.00448 v1 · 2026-07-01 · cs.IR · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SN2NVYBID5RMCFLPP6FK7ZHW7J}

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	2026-07-02T01:17:43.680394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9374dae0281f62c1156f7f8aafe4f6fa5cbff00b2191c7e4300758f9cc3a33c9

Aliases

arxiv: 2607.00448 · arxiv_version: 2607.00448v1 · doi: 10.48550/arxiv.2607.00448 · pith_short_12: SN2NVYBID5RM · pith_short_16: SN2NVYBID5RMCFLP · pith_short_8: SN2NVYBI

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/SN2NVYBID5RMCFLPP6FK7ZHW7J \
  | 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: 9374dae0281f62c1156f7f8aafe4f6fa5cbff00b2191c7e4300758f9cc3a33c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb8ba78ca86a69badcdc928aec065c31eb30c3c167b6a69cc4d45bd0ed4db602",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-07-01T05:07:32Z",
    "title_canon_sha256": "784ea7f95355e05779b45b4bac0ae407006609d8cc37042361979c8f7fcca41f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.00448",
    "kind": "arxiv",
    "version": 1
  }
}