Pith Number

pith:NQVZW7UT

pith:2026:NQVZW7UTUFMYKVJKDAHEABA244

not attested not anchored not stored refs pending

RegCheck: A tool for structured comparisons between study registrations and papers

Beth Clarke, Ian Hussey, Jamie Cummins, Malte Elson

arxiv:2601.13330 v2 · 2026-01-19 · 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{NQVZW7UTUFMYKVJKDAHEABA244}

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	2026-07-14T02:21:27.763402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c2b9b7e93a15985552a180e40041ae7111809781d7c7c1cb4c08b40042a37db

Aliases

arxiv: 2601.13330 · arxiv_version: 2601.13330v2 · doi: 10.48550/arxiv.2601.13330 · pith_short_12: NQVZW7UTUFMY · pith_short_16: NQVZW7UTUFMYKVJK · pith_short_8: NQVZW7UT

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/NQVZW7UTUFMYKVJKDAHEABA244 \
  | 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: 6c2b9b7e93a15985552a180e40041ae7111809781d7c7c1cb4c08b40042a37db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94da788bceaa04470b1c65d3f6053e20c483c38c045bc7e59f428f711637c283",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-01-19T19:10:45Z",
    "title_canon_sha256": "128db20f098dea29e1cf9924b18512e59378839fbeb0cb476245a62e14bb9fe6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.13330",
    "kind": "arxiv",
    "version": 2
  }
}