Robinhood Chain kept producing blocks despite roughly 40-minute app disruption

Robinhood Chain, an Ethereum layer-2 network, kept producing blocks throughout its September 4 disruption. CryptoSlate's September 5 report that block production stopped for at least 14 minutes was wrong. Glass Hull's September 29 measurement counted 854,255 blocks across all 1,440 minutes of September 4 UTC. Glass Hull found that the longest gap between consecutive recorded block timestamps was two seconds. The chain produced 592 blocks in the minute beginning 12:57 UTC, the reported start of the supposed halt. Glass Hull instead measured two pauses totaling 14 minutes in posting Robinhood Chain transaction data to Ethereum. The pauses ran from 12:29:47 to 12:38:23 UTC and from 12:42:47 to 12:48:11 UTC. Both pauses ended before 12:57 UTC, and neither interrupted block production. L2BEAT's liveness record lists comparable gaps in Ethereum data submissions. Walnut's September 23 analysis found that successful traffic through busy Robinhood Chain apps fell sharply from about 12:37 to 13:20 UTC. Walnut found that its median busy app completed about one fifth of its usual successful transactions during the slump. Walnut interprets delayed oracle updates and smart-wallet transaction failures as signs that attempted submissions were lost before reaching blocks. Public chain data do not establish the point of failure. QuickNode began investigating increased Robinhood Chain mainnet latency at 13:10 UTC. At 16:20 UTC, QuickNode warned that users might encounter degraded performance and transactions failing to land while it investigated sequencer-feed connection issues. QuickNode's record covers its own service, while Walnut's roughly 40-minute figure measures successful app traffic. Arbitrum said on September 4 that the chain had no downtime and direct user transactions had no delays. Arbitrum also reported a brief performance impact for some providers that rely on the chain's data stream amid many feed subscribers. Walnut argues that a low batch-poster tip was outbid during an Ethereum fee spike, delaying data posts. Glass Hull leaves the cause of the posting gaps unresolved. The precise off-chain failure point, whether in a sequencer queue or an RPC layer, and its connection to the posting delays remain unresolved.