Pith Number

pith:6VISOFI2

pith:2026:6VISOFI2HQHJQVHFCG5X6MWPUV

not attested not anchored not stored refs pending

GradAlign: Gradient-Aligned Data Selection for LLM Reinforcement Learning

Ningyuan Yang, Sean Welleck, Weihua Du, Weiwei Sun, Yiming Yang

arxiv:2602.21492 v2 · 2026-02-25 · cs.LG · cs.AI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6VISOFI2HQHJQVHFCG5X6MWPUV}

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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.

Cited by

1 paper in Pith

Let the Target Select for Itself: Data Selection via Target-Aligned Paths

Receipt and verification

First computed	2026-07-21T01:19:53.542449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f55127151a3c0e9854e511bb7f32cfa56a25273f2b75f807f62b4e480a724ace

Aliases

arxiv: 2602.21492 · arxiv_version: 2602.21492v2 · doi: 10.48550/arxiv.2602.21492 · pith_short_12: 6VISOFI2HQHJ · pith_short_16: 6VISOFI2HQHJQVHF · pith_short_8: 6VISOFI2

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/6VISOFI2HQHJQVHFCG5X6MWPUV \
  | 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: f55127151a3c0e9854e511bb7f32cfa56a25273f2b75f807f62b4e480a724ace

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8ef00d9db871b8867cb30704e9ffe090ef0fe9e2a8d68b7ad83eb479baf3c00",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-02-25T01:54:50Z",
    "title_canon_sha256": "7651b849d7ca6aa7653cd66e78bb76b362a18cebe0cdf9fbcef092e3fe3a7145"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.21492",
    "kind": "arxiv",
    "version": 2
  }
}