Pith Number

pith:7VGEXAL5

pith:2025:7VGEXAL5VHE5PS7TIGZCX4UFQP

not attested not anchored not stored refs pending

Gradient Imbalance in Direct Preference Optimization

Can Jin, Jenq-Neng Hwang, Jingzhe Shi, Lei Li, Qinwei Ma, Serge Belongie

arxiv:2502.20847 v1 · 2025-02-28 · 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{7VGEXAL5VHE5PS7TIGZCX4UFQP}

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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

2 papers in Pith

AdaDPO: Self-Adaptive Direct Preference Optimization with Balanced Gradient Updates

Boosting Reinforcement Learning with Verifiable Rewards via Randomly Selected Few-Shot Guidance

Receipt and verification

First computed	2026-07-05T10:21:40.894769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd4c4b817da9c9d7cbf341b22bf28583d8cff08b2a9bbad16d1108cc3af6c640

Aliases

arxiv: 2502.20847 · arxiv_version: 2502.20847v1 · doi: 10.48550/arxiv.2502.20847 · pith_short_12: 7VGEXAL5VHE5 · pith_short_16: 7VGEXAL5VHE5PS7T · pith_short_8: 7VGEXAL5

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/7VGEXAL5VHE5PS7TIGZCX4UFQP \
  | 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: fd4c4b817da9c9d7cbf341b22bf28583d8cff08b2a9bbad16d1108cc3af6c640

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6edb87d0bd995b2e3c5539a87105feb77e073fa69e7f31a2cded466df307069e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-02-28T08:47:03Z",
    "title_canon_sha256": "f7c0f99c752d9249bb2941d4b6004819fc7151312d96b4f3d41b96b3c5b897e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.20847",
    "kind": "arxiv",
    "version": 1
  }
}