Pith Number

pith:UMS4CLDA

pith:2026:UMS4CLDAKUZKTBCNFOMIKUS6WG

not attested not anchored not stored refs pending

LLMs Are Already Good Tutors: Training-Free Prompt Optimization for Pedagogical Math Tutoring

Eunjoo Lee, Hoilym Kwon, Jeongsu Moon, Kyungtae Joo, Minchul Shin, Sookbun Lee, Unggi Lee, Yeil Jeong

arxiv:2605.27088 v1 · 2026-05-26 · cs.CL · 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{UMS4CLDAKUZKTBCNFOMIKUS6WG}

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	2026-05-27T01:06:27.725420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a325c12c605532a9844d2b9885525eb1ad6438faa67e30908a65c67eb138dfa0

Aliases

arxiv: 2605.27088 · arxiv_version: 2605.27088v1 · doi: 10.48550/arxiv.2605.27088 · pith_short_12: UMS4CLDAKUZK · pith_short_16: UMS4CLDAKUZKTBCN · pith_short_8: UMS4CLDA

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/UMS4CLDAKUZKTBCNFOMIKUS6WG \
  | 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: a325c12c605532a9844d2b9885525eb1ad6438faa67e30908a65c67eb138dfa0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcd7e12c7bff150cd2ed84f04176e99c12c23c53cd3d19e59615761fde0e3ee0",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-26T14:35:57Z",
    "title_canon_sha256": "cc93daaa75d2f8f6fa0944966f1401fe04e3b4d324e8fa4b3929cc0cd7b5c9d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.27088",
    "kind": "arxiv",
    "version": 1
  }
}