Pith Number

pith:CTQ2FZQU

pith:2024:CTQ2FZQUAPO5CFQDBJONJN5EFG

not attested not anchored not stored refs pending

Constrained C-Test Generation via Mixed-Integer Programming

Iryna Gurevych, Ji-Ung Lee, Marc E. Pfetsch

arxiv:2404.08821 v1 · 2024-04-12 · 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{CTQ2FZQUAPO5CFQDBJONJN5EFG}

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	2026-07-05T08:07:40.740495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14e1a2e61403ddd116030a5cd4b7a429b82d6b0c54137d9456194dac77839b5d

Aliases

arxiv: 2404.08821 · arxiv_version: 2404.08821v1 · doi: 10.48550/arxiv.2404.08821 · pith_short_12: CTQ2FZQUAPO5 · pith_short_16: CTQ2FZQUAPO5CFQD · pith_short_8: CTQ2FZQU

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/CTQ2FZQUAPO5CFQDBJONJN5EFG \
  | 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: 14e1a2e61403ddd116030a5cd4b7a429b82d6b0c54137d9456194dac77839b5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "703dd00f03af8df9ce106c7fb383fefc5d1df97c70e36b2c0b879d5a723ec281",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2024-04-12T21:35:21Z",
    "title_canon_sha256": "f11f498fbda76771dc695fca5eb1f4c7934267030f479f416c02b2536dd3f7d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.08821",
    "kind": "arxiv",
    "version": 1
  }
}