Pith Number

pith:RXOP5R7S

pith:2026:RXOP5R7SE2WC7QFKVPEVO4TNF3

not attested not anchored not stored refs pending

Corpus Prevalence of Multiple-Choice Question Options

Hedderik van Rijn, Leonidas Zotos, Malvina Nissim

arxiv:2602.17377 v2 · 2026-02-19 · 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{RXOP5R7SE2WC7QFKVPEVO4TNF3}

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	2026-06-23T03:13:54.583942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ddcfec7f226ac2fc0aaabc957726d2ee529b3846fee3dff9340c3a6df10825e

Aliases

arxiv: 2602.17377 · arxiv_version: 2602.17377v2 · doi: 10.48550/arxiv.2602.17377 · pith_short_12: RXOP5R7SE2WC · pith_short_16: RXOP5R7SE2WC7QFK · pith_short_8: RXOP5R7S

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/RXOP5R7SE2WC7QFKVPEVO4TNF3 \
  | 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: 8ddcfec7f226ac2fc0aaabc957726d2ee529b3846fee3dff9340c3a6df10825e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63c9a516b3676d93ddc6a273feec0c8d248ad0a8cc89978f57d5d1f090a90e28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-02-19T13:58:48Z",
    "title_canon_sha256": "9517f8308478e17daac9dfa28d9e43cba0f450bedd0e5c287af4f52470e3e435"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.17377",
    "kind": "arxiv",
    "version": 2
  }
}