Pith Number

pith:WRP4JNDN

pith:2026:WRP4JNDNDLN44SBIWF6VX6KAS5

not attested not anchored not stored refs pending

FormInv: A Measurement Protocol for Semantic Invariance in Mathematical Reasoning Benchmarks

Nishal Thomas, Noel Thomas

arxiv:2605.29001 v1 · 2026-05-27 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WRP4JNDNDLN44SBIWF6VX6KAS5}

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	2026-05-29T01:04:43.125373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b45fc4b46d1adbce4828b17d5bf9409771643fb8404883d1aec2c9a81e47208f

Aliases

arxiv: 2605.29001 · arxiv_version: 2605.29001v1 · doi: 10.48550/arxiv.2605.29001 · pith_short_12: WRP4JNDNDLN4 · pith_short_16: WRP4JNDNDLN44SBI · pith_short_8: WRP4JNDN

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/WRP4JNDNDLN44SBIWF6VX6KAS5 \
  | 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: b45fc4b46d1adbce4828b17d5bf9409771643fb8404883d1aec2c9a81e47208f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1b23d983e236180d7fe4e69ae8cc5d5beebf22ffaecfac14368b5f97aeea45b",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-27T18:59:18Z",
    "title_canon_sha256": "4185b73d265b157ab63653ba51bd4e4c3731908367168fc1e1a07decaae135e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.29001",
    "kind": "arxiv",
    "version": 1
  }
}