Blockchain data provider Allium has restored live delivery across Snowflake, Databricks and BigQuery after identifying unauthorized access to certain systems on Oct. 25. Its Oct. 28 datashare update says delivery is operating normally for all chains, while raw and enriched tables for 18 named chains, including Ethereum, Solana, Bitcoin, Base, Arbitrum and Arc, passed existing completeness and freshness checks on Snowflake and Databricks. Historical backfills remain in progress for parts of the service, including some chains such as Hyperliquid and coverage on BigQuery. Allium says stale verified_until timestamps reflect the restoration of automated re-verification rather than missing data. Its recovery instructions retain feature restrictions and credential changes, including revoked API keys, requested new passwords, recommended multi-factor authentication, and temporary limits on new uploads and access to previously uploaded data. Users conducting research, reconciliation or infrastructure work should verify the warehouse, chain and historical window before relying on records from the affected period.