OpenChainGraph Suite · Bank Capital & Credit Risk

RDARR Management-Body Attestation Cycle

Note (dated 2026-08-04): a chain composes independent computations performed in an analytical order. No step's output is carried into the next step by the execution model; each step computes from its own declared inputs. This is true of every chain on this site, including chains whose per-step copy below reads as a data handoff.
Reading mode (READINESS-BUILD): These checks can be gathered in any order; the sequence below is for convenience. The recomputed figure and the quality-metric scores are two separately gated checks assembled into one attestation bundle for release.

Two-step attestation cycle for risk data aggregation and risk reporting. The attestation is the deliverable: step 1 re-derives a stated risk-report figure from a declared tabular extract under a declared aggregation policy, so the signature is backed by a recomputed number rather than a self-assessment; step 2 scores the deterministic quality metrics against policy-supplied thresholds, each labelled with its ECB Guide prerequisite area. Step 1 is gated review_required when any source line is excluded from the recompute, with the risk-data owner as reviewer. Step 2 is gated dual_control(2) for periodic attestation release, with one of the two distinct approver identities bound to a management-body role. The recompute is evidence for the institution's own internal attestation; it is not a supervisory submission and carries no supervisory pass mark.

OpenChainGraph · 2 Steps attestation mandate Hash-Anchored §4 chain_depth:2 Client-Side · Zero PII
Chain Topology: RDARR Aggregation Recompute → RDARR Quality Scorecard
§4 Execution Hash · Chain Definition Anchor
execution_hash:computing…
Chain Stages · 2 Steps
1 ROOT node review_required
RDARR Aggregation Recompute art-480-rdarr-aggregation-recompute
Recomputed figure, signed delta against the reported figure, and the per-level contribution breakdown localise a break to one roll-up node; the same extract feeds the quality scorecard
§27 Human Accountability gate: any source line excluded from the recompute routes the cycle to review_required, with the risk-data owner as reviewer, before the scorecard stage is treated as settled.
MCP Call · rdarr_aggregation_recompute
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "rdarr_aggregation_recompute",
    "arguments": {}
  },
  "id": 1
}
2 TERMINAL node dual_control(2)
RDARR Quality Scorecard art-481-rdarr-quality-scorecard
Per-metric pass/breach plus an overall scorecard status, each metric labelled by ECB Guide prerequisite area, released under dual control into the accountability evidence bundle for the cycle. Final stage.
§27 Human Accountability gate: releasing the periodic attestation is dual_control(2): two distinct approver identities, one of them bound to a management-body role. A scorecard status of breach stops the cycle before release.
MCP Call · rdarr_quality_scorecard
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "rdarr_quality_scorecard",
    "arguments": {}
  },
  "id": 1
}
Export Artifacts
Download the §4 chain definition artifact (hash-anchored composite JSON) or the §13.11 W3C Verifiable Credentials view. Both derive from the chain definition; no new hash is minted. Available after hash computation.