What is Distributed Ledger?
Crypto Glossary Definition
A specific kind of database that is transparently shared and kept in sync across multiple redundant locations and parties.
Why Distributed Ledger Matters
A distributed ledger is a database replicated and synchronized across many independent participants rather than stored in one place — blockchain is the most well-known type, but not every distributed ledger uses a literal chain of blocks.
Distributed Ledger in Practice
A consortium of banks wants to settle interbank transfers faster and with fewer reconciliation errors than their current system, where each bank maintains its own separate internal records that have to be periodically compared and corrected against each other. Instead, they adopt a distributed ledger that every participating bank runs a copy of, so that when one bank records a transfer, all the others see the identical, synchronized update to the shared record in near real time, without needing a central clearinghouse to reconcile everyone's books afterward. This eliminates the delays and disputes that come from each party keeping its own version of the truth. Blockchain, with its literal chain of cryptographically linked blocks, is the most widely recognized way to build a distributed ledger, but it isn't the only way — some enterprise distributed ledgers use different data structures entirely, without a strict linear chain, while still achieving the same goal of a shared, synchronized, tamper-evident record across multiple independent parties. What all distributed ledgers have in common is that no single participant controls or can unilaterally alter the shared record, which is precisely the property that makes them useful for scenarios, like interbank settlement, where multiple parties need to trust the same data without trusting each other directly.
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