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aitbc/docs/advanced/02_reference/2_payment-architecture.md
AITBC System dda703de10 feat: implement v0.2.0 release features - agent-first evolution
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🚀 Ready for v0.2.0 release with agent-first architecture
2026-03-18 20:17:23 +01:00

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# AITBC Payment Architecture
## Overview
The AITBC platform uses a dual-currency system:
- **AITBC Tokens**: For job payments and platform operations
- **Bitcoin**: For purchasing AITBC tokens through the exchange
## Payment Flow
### 1. Job Payments (AITBC Tokens)
```
Client ──► Creates Job with AITBC Payment ──► Coordinator API
│ │
│ ▼
│ Create Token Escrow
│ │
│ ▼
│ Exchange API (Token)
│ │
▼ ▼
Miner completes job ──► Release AITBC Escrow ──► Miner Wallet
```
### 2. Token Purchase (Bitcoin → AITBC)
```
Client ──► Bitcoin Payment ──► Exchange API
│ │
│ ▼
│ Process Bitcoin
│ │
▼ ▼
Receive AITBC Tokens ◄─── Exchange Rate ◄─── 1 BTC = 100,000 AITBC
```
## Implementation Details
### Job Payment Structure
```json
{
"payload": {...},
"ttl_seconds": 900,
"payment_amount": 100, // AITBC tokens
"payment_currency": "AITBC" // Always AITBC for jobs
}
```
### Payment Methods
- `aitbc_token`: Default for all job payments
- `bitcoin`: Only used for exchange purchases
### Escrow System
- **AITBC Token Escrow**: Managed by Exchange API
- Endpoint: `/api/v1/token/escrow/create`
- Timeout: 1 hour default
- Release on job completion
- **Bitcoin Escrow**: Managed by Wallet Daemon
- Endpoint: `/api/v1/escrow/create`
- Only for token purchases
## API Endpoints
### Job Payment Endpoints
- `POST /v1/jobs` - Create job with AITBC payment
- `GET /v1/jobs/{id}/payment` - Get job payment status
- `POST /v1/payments/{id}/release` - Release AITBC payment
- `POST /v1/payments/{id}/refund` - Refund AITBC tokens
### Exchange Endpoints
- `POST /api/exchange/purchase` - Buy AITBC with BTC
- `GET /api/exchange/rate` - Get current rate (1 BTC = 100,000 AITBC)
## Database Schema
### Job Payments Table
```sql
CREATE TABLE job_payments (
id VARCHAR(255) PRIMARY KEY,
job_id VARCHAR(255) NOT NULL,
amount DECIMAL(20, 8) NOT NULL,
currency VARCHAR(10) DEFAULT 'AITBC',
payment_method VARCHAR(20) DEFAULT 'aitbc_token',
status VARCHAR(20) DEFAULT 'pending',
...
);
```
## Security Considerations
1. **Token Validation**: All AITBC payments require valid token balance
2. **Escrow Security**: Tokens held in smart contract escrow
3. **Rate Limiting**: Exchange purchases limited per user
4. **Audit Trail**: All transactions recorded on blockchain
## Example Flow
### 1. Client Creates Job
```bash
curl -X POST http://localhost:18000/v1/jobs \
-H "X-Api-Key: ${CLIENT_API_KEY}" \
-H "Content-Type: application/json" \
-d '{
"payload": {
"job_type": "ai_inference",
"parameters": {"model": "gpt-4"}
},
"payment_amount": 100,
"payment_currency": "AITBC"
}'
```
### 2. Response with Payment
```json
{
"job_id": "abc123",
"state": "queued",
"payment_id": "pay456",
"payment_status": "escrowed",
"payment_currency": "AITBC"
}
```
### 3. Job Completion & Payment Release
```bash
curl -X POST http://localhost:18000/v1/payments/pay456/release \
-H "X-Api-Key: ${CLIENT_API_KEY}" \
-d '{"job_id": "abc123", "reason": "Job completed"}'
```
## Benefits
1. **Stable Pricing**: AITBC tokens provide stable job pricing
2. **Fast Transactions**: Token payments faster than Bitcoin
3. **Gas Optimization**: Batch operations reduce costs
4. **Platform Control**: Token supply managed by platform
## Migration Path
1. **Phase 1**: Implement AITBC token payments for new jobs
2. **Phase 2**: Migrate existing Bitcoin job payments to tokens
3. **Phase 3**: Phase out Bitcoin for direct job payments
4. **Phase 4**: Bitcoin only used for token purchases
This architecture ensures efficient job payments while maintaining Bitcoin as the entry point for platform participation.