Pith Number

pith:6MI3RH75

pith:2024:6MI3RH75JLOBNOZRUDU7TCSO27

not attested not anchored not stored refs pending

Are You Doubtful? Oh, It Might Be Difficult Then! Exploring the Use of Model Uncertainty for Question Difficulty Estimation

Hedderik van Rijn, Leonidas Zotos, Malvina Nissim

arxiv:2412.11831 v2 · 2024-12-16 · 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{6MI3RH75JLOBNOZRUDU7TCSO27}

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.

Cited by

2 papers in Pith

LLMs Struggle to Measure What Distinguishes Students of Different Proficiency Levels: A Study of Item Discrimination in Reading Comprehension Assessment

Cognitive Episodes in LLM Reasoning Traces Enable Interpretable Human Item Difficulty Prediction

Receipt and verification

First computed	2026-07-05T10:50:46.114327Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f311b89ffd4adc16bb31a0e9f98a4ed7fea9f21fe23ccee14852c133fb0569ca

Aliases

arxiv: 2412.11831 · arxiv_version: 2412.11831v2 · doi: 10.48550/arxiv.2412.11831 · pith_short_12: 6MI3RH75JLOB · pith_short_16: 6MI3RH75JLOBNOZR · pith_short_8: 6MI3RH75

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/6MI3RH75JLOBNOZRUDU7TCSO27 \
  | 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: f311b89ffd4adc16bb31a0e9f98a4ed7fea9f21fe23ccee14852c133fb0569ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "583fa1b3091576afc63cd49cafefa6a76ab35fa3db07568d15f69a0fad1ece2c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2024-12-16T14:55:09Z",
    "title_canon_sha256": "aeb0d98dc4b079ef81efefe735bebd65b56d76d9397432b1fb24f004bbe48d79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.11831",
    "kind": "arxiv",
    "version": 2
  }
}