The 2015 Spam Attacks: How $10,000 Impacted the Bitcoin Network? In the Bitcoin Core software repository, a recent proposal suggested removing the policy limit on OP_Return output size. We have already shared our views on this matter. The proposal sparked controversy and reignited debates about what constitutes spam on the Bitcoin blockchain and how to handle it. Here, we revisit the spam attacks that targeted the Bitcoin network a decade ago, in the summer of 2015. Our goal is to compare pas...

The 2015 Spam Attacks: How $10,000 Impacted the Bitcoin Network? In the Bitcoin Core software repository, a recent proposal suggested removing the policy limit on OP_Return output size. We have already shared our views on this matter. The proposal sparked controversy and reignited debates about what constitutes spam on the Bitcoin blockchain and how to handle it. Here, we revisit the spam attacks that targeted the Bitcoin network a decade ago, in the summer of 2015. Our goal is to compare pas...