What is Aptos?
- Author
- CRYPTO PORT Editorial
- Published
- Updated
- Reading time
- 5 min
In short
Aptos is a Proof of Stake blockchain that launched in October 2022. It is built by Aptos Labs, founded by engineers from Meta's blockchain project, and uses the Move language with a parallel execution engine. The design targets safe asset representation together with high throughput.
Key points
- Uses Move, whose type system prevents assets from being copied or lost
- Block-STM executes transactions optimistically in parallel and re-runs only those that conflict
- Account keys can be rotated without changing the address
- Inherits the technical lineage of Meta's blockchain project
Definition
A Proof of Stake blockchain combining the Move language with an optimistic parallel execution engine to pursue both throughput and safe asset handling.
Aptos descends from Diem, the payment blockchain Meta — then Facebook — was developing. That project was abandoned for regulatory reasons, but the Move language and consensus work carried over into an independent network launched in 2022.
The point of Move is that a value representing an asset can be defined as a type that cannot be copied and cannot be silently discarded. Bugs that duplicate a balance or destroy tokens mid-transfer are rejected at compile time — a design choice grounded in the observation that many contract vulnerabilities come from mishandling assets.
For throughput it uses Block-STM. Transactions are optimistically executed in parallel on the assumption they do not interfere, and only those found to conflict on reads and writes afterwards are re-executed. Developers need not declare dependencies in advance, so ordinary code benefits from parallelism.
On the user side, key rotation is built in: you can replace an account's key without changing its address, which matters if a key may have been exposed, since assets need not be moved. The chain is used for exchanges, NFTs, games and stablecoin circulation.
Watch out for
- · A large share of the initial allocation went to the company and investors, and its unlocking affects supply
- · Move is not EVM-compatible, so Ethereum contracts do not run unchanged
- · The network is young and its long-run operating record is limited
Frequently asked questions
Does it use the same Move as Sui?
They share an origin, but Sui extended the language for its object model, and code is not portable between the two.