How can you verify Solana’s history if validator ledger entries — the foundation of block formation and Proof of History (PoH) sequencing — are missing?

Early Solana archives (e.g., BigQuery, pre-v1.18 BigTable) lack entries, making precise replay, PoH verification, and bank state commitment validation impossible.

At DexterLab we are reconstructing the missing entries by:
- Downloading epoch-scale ledger dumps (>1TB) from GCS
- Parsing RocksDB directly to extract original entries
- Rebuilding full entry streams to match original validator ledger state

Challenges we solve:
- Massive data ingestion and decoding at scale
- Handling incomplete or corrupted ledger segments
- Reconstructing accurate entry ordering without metadata drift
- Maintaining deterministic replay and state hash consistency

Our pipeline enables full Solana historical verification from genesis — without gaps, drift, or trust assumptions.