Pith Number

pith:NAN3TJKB

pith:2024:NAN3TJKB6IV62TC22XUSFWSGZR

not attested not anchored not stored refs pending

Beyond Flesch-Kincaid: Prompt-based Metrics Improve Difficulty Classification of Educational Texts

Anastassia Shaitarova, Dirk Hovy, Donya Rooein, Paul Rottger

arxiv:2405.09482 v2 · 2024-05-15 · 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{NAN3TJKB6IV62TC22XUSFWSGZR}

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	2026-07-05T08:28:09.980259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

681bb9a541f22bed4c5ad5e922da46cc79bd8c88d58a31f5746ff28e027eaa94

Aliases

arxiv: 2405.09482 · arxiv_version: 2405.09482v2 · doi: 10.48550/arxiv.2405.09482 · pith_short_12: NAN3TJKB6IV6 · pith_short_16: NAN3TJKB6IV62TC2 · pith_short_8: NAN3TJKB

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/NAN3TJKB6IV62TC22XUSFWSGZR \
  | 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: 681bb9a541f22bed4c5ad5e922da46cc79bd8c88d58a31f5746ff28e027eaa94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "487b3177eae9b836fd5ee7aef1759b41ee401ae5ff5a51cbfe3e747d0e823b2e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2024-05-15T16:22:16Z",
    "title_canon_sha256": "776af96733a695c6caabd8f7a7a926b70425dbb1a3f650ff1f82baea2cceeaad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.09482",
    "kind": "arxiv",
    "version": 2
  }
}