Pith Number

pith:GIIVZH3W

pith:2026:GIIVZH3WZYX3CF3EBWEJYYHVMM

not attested not anchored not stored refs pending

ReverseMath: Answer Inversion for Scalable and Verifiable Mathematical Problem Generation

Hinrich Sch\"utze, Michael A. Hedderich, Raoyuan Zhao, Yihong Liu, Yupei Du

arxiv:2605.27709 v1 · 2026-05-26 · 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{GIIVZH3WZYX3CF3EBWEJYYHVMM}

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	2026-05-28T01:04:46.870536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32115c9f76ce2fb117640d889c60f5631dc90ad1661d9f05a45672b1468f7adf

Aliases

arxiv: 2605.27709 · arxiv_version: 2605.27709v1 · doi: 10.48550/arxiv.2605.27709 · pith_short_12: GIIVZH3WZYX3 · pith_short_16: GIIVZH3WZYX3CF3E · pith_short_8: GIIVZH3W

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/GIIVZH3WZYX3CF3EBWEJYYHVMM \
  | 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: 32115c9f76ce2fb117640d889c60f5631dc90ad1661d9f05a45672b1468f7adf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c5f4445da6db2ad86d6ca653162b6f2c30e71b2e8d47dec6ea8126348d72c3f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-26T21:32:47Z",
    "title_canon_sha256": "d3f22123bcb324720e1c6621df33e81a2146f4a0643a86538a0aded80fe57a38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.27709",
    "kind": "arxiv",
    "version": 1
  }
}