A resolver that learns about blocklists only after the first scam needs a
release before it can warn anyone. The consumer ships now, pointed at a list
with no entries, so the first real report costs a transaction instead.
A list is an address, named by a BNS name whose bl record holds it. Entries
are RPT (the report), BLK and UBK. A flag counts only when it names a valid
report in the same list for the same name and reason, and only when its
transaction is spent FROM the list address: anyone can pay an address, so
being in its history proves nothing. That spend rule is what lets the
authority change hands later without the resolver learning the difference.
resolveName attaches blocked, blockReason, blockReportTxid and blockedBy to a
flagged name and leaves every other answer untouched. With no subscription it
is the old resolver exactly. A list that cannot be read never stops a name
from resolving. Lists are read from full electrum servers: the project's
beacon-only indexers answer 'no history' for any other address, which would
look like an empty list.
The default list is sirius-blocklist.x, a two-part name because a three-part
one collapses to its parent. Address conversion is dependency-free so this
file stays a single-file drop-in.
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