Why we built BAM

Post #1 — by the BAM team

Most messaging on Ethereum rides as transactions. Gas per sender, per message — fine for one-off writes, hopeless for large multi-sender streams like timelines, comments, and feeds.

BAM packs many messages into one blob and posts a single transaction. Each sender signs their own message, so the chain becomes a notarised log of who said what. The aggregator picks which messages to include but can't forge them.

That's the whole trust story. The rest is plumbing.