Pith Number

pith:QPRGIAAY

pith:2026:QPRGIAAYAGUAWZNL5VQNJM3VYH

not attested not anchored not stored refs pending

A Grammar of Machine Learning Workflows: Rejecting Data Leakage at Call Time

Simon Roth

A grammar of eight typed primitives, a directed acyclic graph, and four hard constraints makes the most damaging forms of data leakage structurally unrepresentable in machine learning workflows.

arxiv:2603.10742 v4 · 2026-03-11 · cs.LG

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\usepackage{pith}
\pithnumber{QPRGIAAYAGUAWZNL5VQNJM3VYH}

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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.

Claims

C1strongest claim

This paper presents a grammar - eight typed primitives, a directed acyclic graph, and four hard constraints - that makes the most damaging leakage types structurally unrepresentable.

C2weakest assumption

That the four hard constraints and the terminal assessment gate are sufficient to block all damaging leakage types while remaining practical for real workflows and enforceable at call time.

C3one line summary

A grammar of eight typed primitives, a DAG, and four constraints makes the most damaging forms of data leakage in ML workflows structurally unrepresentable.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-06-02T01:03:45.350814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83e264001801a80b65abed60d4b375c1cd5b0469bb303b0798d7288b45836581

Aliases

arxiv: 2603.10742 · arxiv_version: 2603.10742v4 · doi: 10.48550/arxiv.2603.10742 · pith_short_12: QPRGIAAYAGUA · pith_short_16: QPRGIAAYAGUAWZNL · pith_short_8: QPRGIAAY

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/QPRGIAAYAGUAWZNL5VQNJM3VYH \
  | 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: 83e264001801a80b65abed60d4b375c1cd5b0469bb303b0798d7288b45836581

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7b2a51f1b279dc6b76ff9f6899fb610e8fe4fad69eb9d6bc777adf8ea73ad2b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-03-11T13:15:33Z",
    "title_canon_sha256": "48f12eded636e225f1591a7db43b33bdf4752a6e951ed8bd35919e7e0c07d05a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.10742",
    "kind": "arxiv",
    "version": 4
  }
}