And they all happened to come from the same unknown person.
2 days ago, there were like 6 blocks in a row all from "Unknown" source, all having -25 BTC listed at "Transaction fees". Network hashrate
was at 57 Thashes, then "Unknown" source vanished and network dropped to like 45 Thashes.
Any thought?
Blockchain.info was bugged. I think 3 or 4 of those Unknown blocks were BTC Guild. Blockchain.info was failing to parse the coinbase transaction properly, thus the negative fee.