Import facts. Review mappings. Preserve every attempt.

A contract preview of the operator flow. Raw payloads are immutable, row errors remain visible, and no reading enters reconciliation through an unapproved channel mapping.

Live intake disabledNo customer endpoint or production object store is connected.

Current gateIngestion evidence still needs review1 mapping and 1 replay require review.

Accepted rows2 868Across 2 immutable imports

Rejected rows12Never silently discarded

Payload ledger

Recent imports

Payload	Status	Rows	Evidence	Received
scheme-a-intervals-2026-10-26.csvimp_01JAZ7T6 · Retained	Canonicalised	1 4400 rejected	`f4f2bc9a…36fe`	27 Oct 2026 · 08:14 SAST
scheme-a-intervals-2026-10-27.csvimp_01JAZ89N · Dry run	Partial	1 42812 rejected	`80ac510a…6863`	27 Oct 2026 · 09:02 SAST

Append-only workbench

Channel mappings

GRID_MAINGrid supply / import

v1 · 01 Jan 2026Approved

UNIT_14_KWHUnit 14 / consumption

v2 · 01 Nov 2026Approval required

Corrections create a linked version. Raw vendor values are never edited.

Recovery queue

Dead letters

OpenUNKNOWN VENDOR CHANNELdlq_01JAZ89P · from imp_01JAZ89N

Replay links a new import attempt; the failed attempt remains evidence.