Transformation predicate

One append-only processing event that binds its outputs to exact input artifacts and predecessor statement payloads.

Predicate type

https://usemakoto.dev/predicate/v0.2/transform

JSON Schema

transform.schema.json

Each input carries two bindings

• Artifact binding: the SHA-256 of the exact input bytes.
• Provenance binding: the predecessor statement payload digest and subject name that supplied those bytes.

{
  "name": "customers.raw.json",
  "digest": {"sha256": "…"},
  "provenance": {"statementDigest": {"sha256": "…"}, "subjectName": "customers.raw.json"}
}

Joins use inputs from multiple predecessors. Splits use multiple output subjects or multiple descendants. Array order never defines lineage.