Pith Number

pith:QDKBTK5B

pith:2020:QDKBTK5BAXLO3YY465SGFWGA6A

not attested not anchored not stored refs pending

When in Doubt, Ask: Generating Answerable and Unanswerable Questions, Unsupervised

Liubov Nikolenko, Pouya Rezazadeh Kalehbasti

arxiv:2010.01611 v2 · 2020-10-04 · cs.CL · cs.FL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QDKBTK5BAXLO3YY465SGFWGA6A}

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	2026-07-05T03:11:56.209972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80d419aba105d6ede31cf76462d8c0f03f7ac9ed5d96c4864d5b3250f104dcd1

Aliases

arxiv: 2010.01611 · arxiv_version: 2010.01611v2 · doi: 10.48550/arxiv.2010.01611 · pith_short_12: QDKBTK5BAXLO · pith_short_16: QDKBTK5BAXLO3YY4 · pith_short_8: QDKBTK5B

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/QDKBTK5BAXLO3YY465SGFWGA6A \
  | 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: 80d419aba105d6ede31cf76462d8c0f03f7ac9ed5d96c4864d5b3250f104dcd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "058734a727fbfb71f86c6bc2cdc14247e2a84694700e425596c0b87de550bbd3",
    "cross_cats_sorted": [
      "cs.FL",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-10-04T15:56:44Z",
    "title_canon_sha256": "3bbc92cd86932c0c25963b7b92cbe31b9e4c1975d41bebd0c1e1288d4b1bb91b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.01611",
    "kind": "arxiv",
    "version": 2
  }
}