A scaling system that executes transactions separately and publishes required data and commitments to a base chain.
The rollup collects many transfers into one batch and publishes the required data, rather than asking Ethereum to execute each transfer individually.
A service giving wallets and applications access to blockchain node APIs.
"The explorer sees my transaction, but my wallet's RPC endpoint is not returning current data."
One hundred millionth of a bitcoin, commonly shortened to sat.
'That costs 5,000 sats.' The price is 0.00005 BTC, written in a unit that's easier to read.
A digital-signature construction with properties useful for certain multisignature and aggregation protocols.
Recovery words used by many wallets to derive the keys that control an account.
"I can restore with my private recovery backup. That support DM asking me to send the words is a different story."
A Bitcoin upgrade that separates witness data, such as signatures, from the traditional transaction serialization.
A SegWit transaction stores its signature data in the witness section; its traditional transaction ID excludes that witness data.
Controlling the authorization needed to move your own blockchain assets.
You review a transfer and sign it with your own hardware wallet; there is no exchange withdrawal request to approve.
A component or participant that orders transactions for execution in a scaling system.
"The rollup accepted my transaction quickly. Its sequencer response came before the batch settled on Ethereum."
A cryptographic hash algorithm in the SHA-2 family that produces a 256-bit digest.
Bitcoin mining code applies SHA-256 twice to a candidate block header, then compares that digest with the proof-of-work target.
A separate blockchain connected to another chain while using its own consensus security.