# ChainID 138 Explorer+ and Virtual Banking VTM Platform

## 1. Objective
Build a next-generation, cross-chain blockchain intelligence and interaction platform that:
- Starts as a **ChainID 138** explorer (Blockscout-class) and expands into a **multi-chain, multi-protocol** explorer.
- Adds **transaction interaction** features (swap/bridge/on-ramp/off-ramp, account management, signing workflows) comparable to wallet suites.
- Integrates **Virtual Banking Tellers** via **Soul Machines** to deliver a Virtual Teller Machine (VTM) experience.
- Uses **Chainlink CCIP DON** for secure cross-chain messaging/bridging coordination and observability.
- Supports **Solace Bank Group** digital banking UX with compliant identity, account, and payment rails.
- Delivers a **bleeding-edge UX** including XR / metaverse-like environments where appropriate.

## 2. Product Scope
### 2.1 Core Pillars
1) **Explorer & Indexing** (Blockscan/Etherscan/Blockscout parity)
2) **Mempool & Real-time** (pending tx, propagation, bundle tracking)
3) **Cross-chain Intelligence** (entity graph, address attribution, unified search)
4) **Action Layer** (swap/bridge, token tools, contract deploy/verify, portfolio)
5) **Banking & Compliance** (KYC/KYB, risk, limits, ledger, fiat rails)
6) **Virtual Teller Machine** (Soul Machines-based digital humans + workflow automation)
7) **XR Experience** (optional immersive interfaces for exploration + teller workflows)

### 2.2 Non-goals (initial)
- Operating as a custodial exchange (unless licensed and separately scoped)
- Providing investment advice or trading signals beyond analytics

## 3. Target Users and Use Cases
- **Developers**: contract verification, ABI decoding, tx debugging, logs, traces
- **Retail users**: balances, NFTs, swaps, bridges, notifications, address book
- **Institutions**: compliance dashboards, entity risk, proof-of-funds, audit trails
- **Bank customers**: virtual teller support, onboarding, account actions, dispute workflows

## 4. Reference Feature Set (What to Match/Surpass)
### 4.1 Etherscan/Blockscan-class
- Address/Tx/Block pages, token pages, internal tx, logs, traces, verified contracts
- Advanced filters, CSV export, APIs, alerts, labels, watchlists

### 4.2 Mempool / “Blockchain.com-like”
- Pending tx stream, fee estimation, propagation time, RBF/replace-by-fee (where applicable)
- Bundles/MEV visibility (where supported), private tx markers

### 4.3 Blockscout-class
- Open-source extensibility: smart contract verification pipelines, sourcify support
- Multi-chain config and modular indexer

### 4.4 Wallet/Bridge suite
- Swap routing, bridge routing, cross-chain portfolio, approvals management
- Integrations (Changelly / AtomicWallet-like UX): quotes, slippage, KYC prompts

## 5. System Architecture (High-Level)
### 5.1 Component Overview
- **Frontend**: Web + mobile + XR clients
- **API Gateway**: unified edge API, auth, rate limits
- **Explorer Services**: blocks/tx/indexing/search/analytics
- **Mempool Services**: pending tx ingestion, fee oracle, websockets
- **Cross-chain Layer**: CCIP coordination, message observability, routing
- **Action Layer**: swap/bridge orchestration, wallet connect, signing workflows
- **Banking Layer**: identity, compliance, ledger, payments, customer service
- **Virtual Teller Layer**: Soul Machines integration + workflow engine
- **Data Layer**: OLTP + time-series + search + graph + data lake
- **Ops/Security**: SIEM, KMS/HSM, secrets, audit, monitoring

### 5.2 Logical Diagram
```mermaid
flowchart LR
  subgraph Clients
    W[Web App]
    M[Mobile App]
    X[XR Client]
  end

  subgraph Edge
    CDN[CDN/WAF]
    GW[API Gateway]
    WS[WebSocket Gateway]
  end

  subgraph Core
    S1[Explorer API]
    S2[Mempool/Realtime]
    S3[Search Service]
    S4[Analytics Service]
    S5[Cross-chain Service]
    S6[Action Orchestrator]
    S7[Banking API]
    S8[Teller Orchestrator]
  end

  subgraph Data
    DB[(Relational DB)]
    ES[(Search Index)]
    TS[(Time-series)]
    G[(Graph DB)]
    DL[(Data Lake)]
  end

  subgraph External
    RPC[Chain RPC/Nodes]
    CCIP[Chainlink CCIP DON]
    DEX[DEX Aggregators]
    BR[Bridge Providers]
    BANK[Banking Rails/KYC]
    SM[Soul Machines]
  end

  W-->CDN-->GW
  M-->CDN
  X-->CDN
  W-->WS
  M-->WS

  GW-->S1
  GW-->S3
  GW-->S4
  GW-->S5
  GW-->S6
  GW-->S7
  GW-->S8

  WS-->S2

  S1-->DB
  S1-->ES
  S2-->TS
  S3-->ES
  S4-->DL
  S4-->TS
  S5-->G
  S5-->DL
  S6-->DEX
  S6-->BR
  S6-->CCIP
  S7-->BANK
  S8-->SM

  S1-->RPC
  S2-->RPC
```

## 6. ChainID 138 Explorer Foundation
### 6.1 Node and Data Sources
- **Full nodes** for ChainID 138 (archive + tracing if EVM-based)
- **RPC endpoints** (load-balanced, multi-region)
- **Indexer** pipelines:
  - Blocks + tx + receipts
  - Event logs
  - Traces (call traces, internal tx)
  - Token transfers (ERC-20/721/1155)

### 6.2 Indexing Pipeline
- Ingestion: block listener + backfill workers
- Decode: ABI registry + signature database
- Persist: canonical relational schema + denormalized search docs
- Materialize: analytics aggregates (TPS, gas, top contracts)

### 6.3 Contract Verification
- Solidity/Vyper verification workflow
- Sourcify integration
- Build artifact storage (immutable)
- Multi-compiler version support

### 6.4 Public APIs
- REST + GraphQL
- Etherscan-compatible API surface (optional) for tool compatibility
- Rate limiting and API keys

## 7. Multi-Chain Expansion
### 7.1 Chain Abstraction
Define a chain adapter interface:
- RPC capabilities (archive, tracing, debug)
- Token standards
- Gas model
- Finality model

### 7.2 Multi-Chain Indexing Strategy
- Per-chain indexer workers
- Shared schema with chain_id partitioning
- Cross-chain unified search

### 7.3 Cross-chain Entity Graph
- Address clustering heuristics (opt-in labels)
- Contract/protocol tagging
- CCIP message links (source tx ↔ message ↔ destination tx)

### 7.4 Cross-chain Observability via CCIP
- Ingest CCIP message events
- Normalize message IDs
- Track delivery status, retries, execution receipts

#### CCIP Flow Diagram
```mermaid
sequenceDiagram
  participant U as User
  participant A as Action Orchestrator
  participant S as Source Chain
  participant D as CCIP DON
  participant T as Target Chain
  participant E as Explorer/Indexer

  U->>A: Initiate cross-chain action
  A->>S: Submit source tx (send message)
  S-->>E: Emit tx + CCIP events
  E->>E: Index source tx + messageId
  D-->>T: Deliver/execute message
  T-->>E: Emit execution tx + receipt
  E->>E: Link messageId to target tx
  E-->>U: Show end-to-end status
```

## 8. Action Layer (Swap/Bridge/Wallet Operations)
### 8.1 Wallet Connectivity
- WalletConnect v2
- Hardware wallet support (where available)
- Embedded wallet option (custodial/non-custodial mode—policy gated)

### 8.2 Swap Engine
- DEX aggregator integration (quotes, routing)
- Slippage controls
- Approval management (allowance scanning + revoke)
- Transaction simulation (pre-flight)

### 8.3 Bridge Engine
- Provider abstraction (CCIP + third-party bridges)
- Quote comparison (fees, ETA, trust score)
- Failover routing
- Proof and receipt tracking

### 8.4 Safety Controls
- Phishing/contract risk scoring
- Address screening
- Simulation + signing warnings

## 9. Banking Layer (Solace Bank Group Integration)
### 9.1 Identity and Compliance
- KYC/KYB workflow orchestration
- Sanctions/PEP screening integration points
- Risk tiers, limits, and step-up verification

### 9.2 Account and Ledger
- Customer ledger (double-entry)
- Wallet mapping (customer ↔ addresses)
- Reconciliation jobs
- Audit trails and immutable logs

### 9.3 Payments and Fiat Rails
- On-ramp/off-ramp provider integration
- ACH/wire/card rails (as available)
- Settlement monitoring

### 9.4 Compliance Dashboards
- Case management
- SAR/STR workflow hooks (jurisdiction-dependent)
- Evidence export packages

## 10. Virtual Teller Machine (VTM) with Soul Machines
### 10.1 VTM Concepts
Replace “chat widget” with a **digital human teller** that:
- Guides onboarding and identity verification
- Explains transactions (fees, risk, finality)
- Initiates actions (swap/bridge) with user consent
- Handles banking workflows (password reset, dispute intake, limit increase requests)

### 10.2 Integration Architecture
- Soul Machines Digital Human UI embedded in Web/Mobile/XR
- Teller Orchestrator connects:
  - Conversation state
  - Customer profile/permissions
  - Workflow engine actions
  - Human escalation (ticket/call)

```mermaid
flowchart TB
  UI[Digital Human UI]
  NLU[Intent/Policy Layer]
  WF[Workflow Engine]
  BANK[Banking API]
  ACT[Action Orchestrator]
  EXP[Explorer Services]
  HUM[Human Agent Console]

  UI-->NLU
  NLU-->WF
  WF-->BANK
  WF-->ACT
  WF-->EXP
  WF-->HUM
```

### 10.3 Teller Workflows (Examples)
- “Open a wallet and link my account”
- “Bridge funds from Chain A to ChainID 138”
- “Explain why my transaction is pending”
- “Generate proof-of-funds report for a recipient”
- “Start KYC / continue KYC”

### 10.4 Governance and Guardrails
- Role-based permissions
- Mandatory confirmations for financial actions
- Audit logging of teller-initiated actions
- Safe completion templates for regulated workflows

## 11. XR / Metaverse-like UX
### 11.1 Experience Modes
- **2D Mode**: standard explorer UI with high-performance tables
- **3D Mode**: optional immersive views:
  - Block/tx graph spaces
  - Cross-chain message tunnels (CCIP)
  - “Bank branch” virtual environment for teller

### 11.2 XR Technical Stack (Option Set)
- WebXR (browser-based)
- Unity/Unreal client for high-fidelity experiences
- Shared backend APIs; XR is a client variant, not a separate system

### 11.3 XR UI Principles
- Minimal motion sickness (teleport navigation, stable anchors)
- Accessibility fallback to 2D
- Real-time data overlays (blocks, mempool)

## 12. Data Architecture
### 12.1 Storage Choices (Reference)
- Relational DB (Postgres) for canonical chain data
- Search (OpenSearch/Elasticsearch) for fast query
- Time-series (ClickHouse/Timescale) for mempool + metrics
- Graph DB (Neo4j) for cross-chain entity/message links
- Data lake (S3-compatible) for history, ML, audits

### 12.2 Data Retention
- Full chain history retained; hot vs cold tiers
- Mempool retained short-term (e.g., 7–30 days) with aggregates longer

## 13. Security, Privacy, and Reliability
### 13.1 Security Controls
- KMS/HSM for sensitive keys
- Secrets management
- Signed builds + SBOM
- DDoS protection via WAF/CDN
- Least privilege IAM

### 13.2 Privacy
- PII separated from public chain data
- Tokenization/encryption for identity artifacts
- Regional data residency controls

### 13.3 Reliability
- Multi-region read replicas
- Queue-based ingestion
- Backpressure and reorg handling
- SLOs: API p95 latency, websocket delivery, indexing lag

## 14. Observability
- Centralized logging + tracing
- Indexer lag dashboards
- CCIP message lifecycle dashboards
- Transaction funnel analytics (quote→sign→confirm)

## 15. Implementation Roadmap
### Phase 0 — Foundations (2–4 weeks)
- ChainID 138 nodes + RPC HA
- Minimal indexer + explorer UI MVP
- Search + basic APIs

### Phase 1 — Blockscout+ Parity (4–8 weeks)
- Traces, internal tx, token transfers
- Contract verification + sourcify
- Websockets for new blocks/tx
- User accounts, watchlists, alerts

### Phase 2 — Mempool + Advanced Analytics (4–8 weeks)
- Pending tx stream + fee estimator
- MEV/bundle awareness (where supported)
- Advanced dashboards + exports

### Phase 3 — Multi-chain + CCIP Observability (6–12 weeks)
- Chain adapters for target chains
- Unified search + entity graph
- CCIP message tracking end-to-end

### Phase 4 — Action Layer (Swap/Bridge) (6–12 weeks)
- WalletConnect + transaction simulation
- Swap aggregator integration
- Bridge provider abstraction + CCIP routing option

### Phase 5 — Solace Banking + VTM (8–16 weeks)
- Identity/compliance orchestration
- Ledger + on/off ramp integrations
- Soul Machines digital teller embedding
- Teller workflow engine + human escalation

### Phase 6 — XR Experience (optional, parallel)
- 3D explorer scenes
- Virtual branch teller experiences
- Performance tuning + accessibility fallback

## 16. Team and Responsibilities
- **Protocol/Node Engineering**: nodes, RPC, tracing
- **Data/Indexing**: pipelines, reorg handling, schemas
- **Backend/API**: gateway, services, auth, rate limits
- **Frontend**: explorer UI, actions UI, account UX
- **Banking/Compliance**: identity, ledger, case management
- **Conversational/VTM**: Soul Machines integration, workflow engine
- **Security**: threat modeling, audits, keys, privacy
- **DevOps/SRE**: deployment, observability, SLOs

## 17. Deliverables
- Multi-chain Explorer UI (web/mobile)
- CCIP message observability dashboards
- Action layer: swap/bridge + safety tooling
- Solace Banking integration layer + compliance console
- VTM: digital teller experiences (2D + optional XR)
- Public developer APIs + documentation

## 18. Acceptance Criteria (Definition of Done)
- ChainID 138 explorer achieves Blockscout parity for indexing, search, verification
- Multi-chain search returns consistent results across configured networks
- CCIP messages display source-to-destination lifecycle with linked txs
- Swap/bridge actions produce auditable workflows and clear user confirmations
- VTM teller can complete onboarding + a guided bridge action with full audit logs
- Security posture meets defined controls (KMS, RBAC, logging, privacy separation)

