{% docs previous_block_hash %}
The cryptographic hash of the previous block in the Solana blockchain. Used to verify chain continuity and support block explorer lookups. This value is a base58-encoded string.

**Example:**
- "4g2j...8yP"

**Business Context:**
- Supports chain integrity, fork resolution, and auditability.
- Used for block explorer navigation and verification.
{% enddocs %} 