Multichain Orchestration Architecture (C4)
Document ID: GOS-80-CHAIN-MULTICHAIN-C4 Version: 0.1.0 Status: DRAFT Owner Role: CHAIN_OFFICER Last Review Date: 2026-03-04 Next Review Date: 2026-04-04
Resolving locale, route permissions, and workspace projection.
Current scope: Guest
Category: 80_chain | Version: v1.0.0
Owner: DOCUMENT_CUSTODIAN | Review cycle: 60 days
Approval authority: GOVERNANCE_ADMIN, CHAIN_OFFICER
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Metadata incomplete: Change Log
Document ID: GOS-80-CHAIN-MULTICHAIN-C4 Version: 0.1.0 Status: DRAFT Owner Role: CHAIN_OFFICER Last Review Date: 2026-03-04 Next Review Date: 2026-04-04
flowchart LR
A[Core Ledger Service] -->|Outbox events| B[(Kafka)]
B --> C[Mint Orchestrator]
C --> D[Policy Gate]
D --> E[Mint Executor\nTarget Chain Adapter]
E --> F[Signer Boundary\nHSM or KMS]
E --> G[Execution Chain RPC]
B --> H[Algo Anchor Service]
H --> I[Algorand Adapter]
I --> J[Signer Boundary\nHSM or KMS]
I --> K[Algod\nTestnet or Mainnet]
C --> L[(Orchestration Store)]
H --> L
C --> M[(Audit Hash Chain)]
H --> M
B --> N[DLQ Handler]
Core Ledger Service
Mint Orchestrator
Mint Executor
Algo Anchor Service
Signer Boundary
Kafka
sequenceDiagram
participant Ledger as Core Ledger
participant Kafka as Kafka
participant Orch as Mint Orchestrator
participant Exec as Mint Executor
participant Chain as Execution Chain
participant Anchor as Algo Anchor Service
participant Algo as Algorand
Ledger->>Kafka: milestone.approved
Kafka->>Orch: milestone.approved
Orch->>Kafka: mint.requested
Kafka->>Exec: mint.requested
Exec->>Chain: submit mint tx
Chain-->>Exec: tx confirmed
Exec->>Kafka: mint.confirmed
Kafka->>Anchor: mint.confirmed
Anchor->>Algo: submit hash anchor
Algo-->>Anchor: anchor confirmed round
Anchor->>Kafka: anchor.confirmed