Pith Number

pith:ZTI4BYZT

pith:2022:ZTI4BYZTLZ2EOBKD2JZDR2PZWA

not attested not anchored not stored refs pending

A Feasibility Study of Answer-Agnostic Question Generation for Education

Chris Callison-Burch, Chuning Yuan, Dayheon Choi, Eleni Miltsakaki, Etan Ginsberg, Hannah Gonzalez, Liam Dugan, Shriyash Upadhyay

arxiv:2203.08685 v2 · 2022-03-16 · cs.CL · cs.AI · cs.HC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZTI4BYZTLZ2EOBKD2JZDR2PZWA}

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	2026-07-05T04:09:19.053849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccd1c0e3335e74470543d27238e9f9b02e4565c7eb664e79d344d1c283dde864

Aliases

arxiv: 2203.08685 · arxiv_version: 2203.08685v2 · doi: 10.48550/arxiv.2203.08685 · pith_short_12: ZTI4BYZTLZ2E · pith_short_16: ZTI4BYZTLZ2EOBKD · pith_short_8: ZTI4BYZT

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/ZTI4BYZTLZ2EOBKD2JZDR2PZWA \
  | 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: ccd1c0e3335e74470543d27238e9f9b02e4565c7eb664e79d344d1c283dde864

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4931ce905ce2a01af29ca0c72f5a3e18fb7f8e8ee7d04b61950d816b9a84082",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.HC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2022-03-16T15:16:18Z",
    "title_canon_sha256": "0b305ca5e140acbcf49bbd4413c944c3e5a7fd69791b54f8a27729ce437f23de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.08685",
    "kind": "arxiv",
    "version": 2
  }
}