Decibel Activates Aptos Encrypted Mempool for Traders

Decibel Trade has introduced the Aptos Encrypted Mempool on its decentralized trading platform, allowing users to conceal pending order details before execution to reduce maximal extractable value and transaction manipulation risks, according to CryptoNews.

The optional feature encrypts transaction payloads including trading instructions and functions called, while keeping sender addresses and gas fees visible. Validators collectively decrypt orders after block finalization using the network's batch threshold encryption framework established under Aptos Improvement Proposal 144.

Performance and Technical Design

Aptos testing recorded approximately 20 milliseconds of additional latency per block in a 50-node benchmark. The underlying encryption key is generated for each epoch, with validators holding separate decryption shares that require the consensus mechanism's stake-weighted threshold to reconstruct.

Decibel is an onchain trading exchange incubated by Aptos Labs that launched in February 2026, featuring an order-book model where matching and settlement occur via blockchain infrastructure. Independent DefiLlama data placed Decibel's total value locked near $29.4 million on October 21.

Key facts

• Decibel Trade activated the Aptos Encrypted Mempool to let traders hide pending order payloads from validators.
• The optional feature keeps sender addresses and gas fees visible while concealing transaction instructions until block finalization.
• Aptos benchmark testing recorded around 20 milliseconds of additional latency per block in a 50-node setup.
• Decibel reported a total value locked of $29.4 million on October 21 according to DefiLlama data.