SynapCores Immutable Tables: Blockchain-Grade Data Integrity for Security-Critical Applications

┌──────────────────────────────────────────────────────────────────┐
│                   SYNAPCORES IMMUTABLE TABLE                     │
├──────────────────────────────────────────────────────────────────┤
│                                                                   │
│  Block #0 (Genesis)  →  Block #1  →  Block #2 (Active)  →  ...  │
│  ┌────────────────┐    ┌────────────────┐    ┌────────────────┐ │
│  │ Header:        │    │ Header:        │    │ Header:        │ │
│  │ - Block #: 0   │    │ - Block #: 1   │    │ - Block #: 2   │ │
│  │ - Prev Hash:   │    │ - Prev Hash: ──┼────│ - Prev Hash: ──┼─│
│  │   0x000...     │    │   0xabc...     │    │   0xdef...     │ │
│  │ - Merkle Root  │    │ - Merkle Root  │    │ - Merkle Root  │ │
│  │ - DDL Snapshot │    │ - DDL Snapshot │    │ - DDL Snapshot │ │
│  ├────────────────┤    ├────────────────┤    ├────────────────┤ │
│  │ Record 1       │    │ Record 1001    │    │ Record 2001    │ │
│  │ Record 2       │    │ Record 1002    │    │ Record 2002    │ │
│  │ ...            │    │ ...            │    │ ...            │ │
│  │ Record 1000    │    │ Record 2000    │    │ (Active)       │ │
│  ├────────────────┤    ├────────────────┤    ├────────────────┤ │
│  │ Block Checksum │    │ Block Checksum │    │ Block Checksum │ │
│  │ State: SEALED  │    │ State: SEALED  │    │ State: ACTIVE  │ │
│  └────────────────┘    └────────────────┘    └────────────────┘ │
│                                                                   │
└──────────────────────────────────────────────────────────────────┘

INSERT INTO audit_log (user, action) VALUES ('alice', 'LOGIN');

Step 1: Data Serialization
  → {"user": "alice", "action": "LOGIN"}
  → Bytes: [0x7b, 0x22, 0x75, ...]

Step 2: Checksum Computation (BEFORE encryption)
  → SHA3-256(data_bytes)
  → Checksum: "0x4f3a2b1c..." (stored unencrypted for verification)

Step 3: Encryption (if enabled)
  → Generate random nonce: [0x9f, 0x2e, 0x1a, ...]
  → Derive table key from master key
  → AES-256-GCM(data, key, nonce, aad=[])
  → Output: [nonce || ciphertext || auth_tag]

Step 4: Store Encrypted Record
  → Record.data = encrypted_output
  → Record.checksum = "0x4f3a2b1c..." (plaintext checksum)

CREATE IMMUTABLE TABLE transactions (...)
  CHECKSUM = SHA3_256;  -- Default

CREATE IMMUTABLE TABLE iot_sensor_logs (...)
  CHECKSUM = Blake3;  -- Optimized for speed

CREATE IMMUTABLE TABLE legacy_audit (...)
  CHECKSUM = SHA256;  -- For compatibility

CREATE IMMUTABLE TABLE audit_log (
    event_id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id VARCHAR(100) NOT NULL,
    action VARCHAR(50) NOT NULL,
    timestamp TIMESTAMP DEFAULT NOW(),
    ip_address VARCHAR(45),
    metadata JSONB
) ENGINE = SynapCores
  BLOCK_SIZE = 1000;

CREATE IMMUTABLE TABLE financial_transactions (
    transaction_id UUID PRIMARY KEY,
    account_id INTEGER,
    amount DECIMAL(15,2),
    transaction_type VARCHAR(50),
    timestamp TIMESTAMP,
    encrypted_details JSONB
) ENGINE = SynapCores
  ENCRYPTION = AES256
  CHECKSUM = SHA3_256
  BLOCK_SIZE = 10000;

CREATE IMMUTABLE TABLE patient_records (
    record_id UUID PRIMARY KEY,
    patient_id INTEGER,
    diagnosis TEXT,
    treatment TEXT,
    doctor_id INTEGER,
    hipaa_metadata JSONB
) ENGINE = SynapCores
  ENCRYPTION = AES256  -- Required for HIPAA
  CHECKSUM = SHA3_256
  BLOCK_SIZE = 500;

INSERT INTO audit_log (user_id, action, ip_address)
VALUES ('alice', 'LOGIN', '192.168.1.100');

SELECT * FROM audit_log
WHERE user_id = 'alice'
  AND timestamp > NOW() - INTERVAL '7 days';

VERIFY TABLE audit_log;

VERIFY RECORD audit_log
WHERE event_id = '550e8400-e29b-41d4-a716-446655440000';

UPDATE audit_log
SET action = 'LOGOUT'
WHERE event_id = '550e8400...';
-- Error: Cannot update immutable table

DELETE FROM audit_log
WHERE timestamp < '2024-01-01';
-- Error: Cannot delete from immutable table

ALTER TABLE audit_log ADD COLUMN new_field TEXT;
-- Error: Cannot alter immutable table structure

VERIFY TABLE audit_log;

Returns:
{
    "is_valid": true,
    "blocks_verified": 152,
    "records_verified": 152000,
    "errors": [],
    "verification_time_ms": 342
}

VERIFY RECORD audit_log
WHERE event_id = '550e8400-e29b-41d4-a716-446655440000';

Returns:
{
    "is_valid": true,
    "checksum_match": true,
    "block_number": 42,
    "position": 123,
    "merkle_proof_valid": true
}

SELECT * FROM BLOCKS('audit_log');

Returns:
block_number | record_count | timestamp            | block_checksum | state
-------------|--------------|----------------------|----------------|-------
0            | 1000         | 2025-01-01 00:00:00 | 0xabc123...    | SEALED
1            | 1000         | 2025-01-01 01:23:45 | 0xdef456...    | SEALED
2            | 347          | 2025-01-01 02:15:22 | 0x789abc...    | ACTIVE

CREATE IMMUTABLE TABLE patient_audit_trail (
    audit_id UUID PRIMARY KEY,
    patient_id VARCHAR(20),
    phi_accessed VARCHAR(500),  -- Protected Health Information
    accessed_by VARCHAR(100),
    access_reason TEXT,
    timestamp TIMESTAMP
) ENGINE = SynapCores
  ENCRYPTION = AES256  -- HIPAA requires encryption at rest
  CHECKSUM = SHA3_256;

CREATE IMMUTABLE TABLE payment_transactions (
    transaction_id UUID PRIMARY KEY,
    card_last_4 VARCHAR(4),
    amount DECIMAL(10,2),
    merchant_id VARCHAR(50),
    authorization_code VARCHAR(20),
    timestamp TIMESTAMP,
    fraud_score DECIMAL(5,2),
    encrypted_card_data BYTEA
) ENGINE = SynapCores
  ENCRYPTION = AES256
  CHECKSUM = SHA3_256
  BLOCK_SIZE = 5000;

CREATE IMMUTABLE TABLE classified_system_audit (
    event_id UUID PRIMARY KEY,
    clearance_level VARCHAR(20),  -- UNCLASSIFIED, SECRET, TOP SECRET
    user_id VARCHAR(100),
    action_type VARCHAR(50),
    resource_classification VARCHAR(20),
    timestamp TIMESTAMP,
    digital_signature VARCHAR(512)
) ENGINE = SynapCores
  ENCRYPTION = AES256  -- Required for classified systems
  CHECKSUM = SHA3_256  -- FIPS 202 approved
  BLOCK_SIZE = 10000;

CREATE IMMUTABLE TABLE drug_batch_chain_of_custody (
    event_id UUID PRIMARY KEY,
    batch_number VARCHAR(50),
    drug_name VARCHAR(200),
    location VARCHAR(200),
    temperature DECIMAL(5,2),
    humidity DECIMAL(5,2),
    custodian VARCHAR(100),
    timestamp TIMESTAMP,
    gps_coordinates VARCHAR(50)
) ENGINE = SynapCores
  CHECKSUM = Blake3  -- High throughput for IoT sensors
  BLOCK_SIZE = 5000;