Block 974,916 has not yet been mined as of November 6, 2026, with the chain tip around block 974,861; at the current average block time of 10-10.3 minutes, the remaining ~55 blocks should arrive within 9-9.5 hours, well before the 2026-11-07 08:30:00Z deadline. The 86% probability reflects high confidence the block will be timestamped before the cutoff, with residual uncertainty from mining variance.