Stale Block
A stale block is mined simultaneously with another but excluded from the main chain.
Related terms
SHA-256
SHA-256 is the hashing algorithm used by Bitcoin and similar cryptocurrencies.
Sharding
Sharding divides a blockchain into smaller segments (shards) to improve scalability.
Sidechain Miners
Sidechain miners focus on secondary blockchains connected to the main chain.
Soft Fork
A soft fork updates blockchain protocols while maintaining compatibility with old rules.
Stablecoins
Stablecoins are cryptocurrencies pegged to assets like fiat currencies for price stability.
Stranded Gas
Stranded gas is unused gas repurposed for Bitcoin mining instead of flaring.