Fee Burn (EIP‑1559)
Protocol mechanism that destroys the base fee to counterbalance issuance and align incentives.
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Archives: Glossary
Archives: Glossary
Fee Market
Mechanism by which users compete for blockspace through gas prices, tips, or auctions.
qTESLA (Post‑Quantum Signature)
Lattice‑based digital signature scheme proposed for post‑quantum use, not selected in NIST’s final standardization.
QRL (Quantum Resistant Ledger)
Blockchain project using XMSS hash‑based signatures to provide quantum‑resistant security.
Queries Per Second (QPS)
Throughput metric for APIs, indexers, and RPC endpoints measuring how many queries are handled per second.
Query Plan
Execution strategy chosen by a database or indexer to answer a query efficiently.
Quasi‑Finality
High probability that a block will not be reverted after several confirmations, typical for Nakamoto consensus.
Quorum Set (FBAS)
Configuration of slices and thresholds that define which validator combinations form a quorum in FBAS.
Quorum Slice (FBAS)
Subset of validators sufficient to convince a node of agreement in federated Byzantine agreement systems like Stellar.
Quorum Certificate (QC)
Aggregate signature or proof that a quorum of validators voted for a block, used in HotStuff‑style BFT.
Quorum (Distributed Systems)
Minimum number of nodes that must agree to commit an operation, used in BFT and consensus protocols.
