Pith Number

pith:3HJXFK2T

pith:2026:3HJXFK2TZWZXYCIKDKAOADFO2L

not attested not anchored not stored refs pending

FinSTaR: Towards Financial Reasoning with Time Series Reasoning Models

Dongwan Kang, Hwanil Choi, Jaehoon Lee, Jun Seo, Minjae Kim, Seunghan Lee, Soonyoung Lee, Sungdong Yoo, Tae Yoon Lim, Wonbin Ahn

A 2x2 taxonomy of time series capabilities with tailored chain-of-thought strategies enables 78.9 percent accuracy on financial reasoning tasks from S&P stocks.

arxiv:2605.03460 v2 · 2026-05-05 · cs.AI · cs.LG

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\pithnumber{3HJXFK2TZWZXYCIKDKAOADFO2L}

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3 Author claim open · sign in to claim

4 Citations open

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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.

Claims

C1strongest claim

The proposed method achieves 78.9% average accuracy on FinTSR-Bench, substantially outperforming LLM and TSRM baselines. Furthermore, we show that the four capability categories are complementary and mutually reinforcing through joint training, and that Scenario-Aware CoT consistently improves prediction accuracy over standard CoT.

C2weakest assumption

That the ten tasks constructed from S&P stocks adequately capture the distinctive challenges of financial reasoning and that the deterministic-versus-stochastic distinction is the primary reason current models underperform.

C3one line summary

FinSTaR reaches 78.9% accuracy on a new financial time series reasoning benchmark by applying Compute-in-CoT for deterministic assessments and Scenario-Aware CoT for stochastic predictions.

Receipt and verification

First computed	2026-05-26T01:03:32.028733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9d372ab53cdb37c090a1a80e00caed2c4123d041f6c0a62f0c4f883caefe00b

Aliases

arxiv: 2605.03460 · arxiv_version: 2605.03460v2 · doi: 10.48550/arxiv.2605.03460 · pith_short_12: 3HJXFK2TZWZX · pith_short_16: 3HJXFK2TZWZXYCIK · pith_short_8: 3HJXFK2T

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/3HJXFK2TZWZXYCIKDKAOADFO2L \
  | 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: d9d372ab53cdb37c090a1a80e00caed2c4123d041f6c0a62f0c4f883caefe00b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0eca8639d8ae9de6bf5784563888314debc4f078593b865cca5e5818312e4420",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-05T07:46:39Z",
    "title_canon_sha256": "2bfcf241d0bc60a93932934b8cd1c9ec3d962c5398174324e84468fd663267c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.03460",
    "kind": "arxiv",
    "version": 2
  }
}