Cardano Leios 1,000 TPS Showcase Milestone Reaches 96%

Cardano’s Ouroboros Leios scaling program has moved deeper into performance testing, with the project tracker for the “Showcase 1k TPS” milestone reaching approximately 96%. The figure reflects progress across development tasks attached to that target, while the official roadmap defines the showcase as a controlled network demonstration rather than a Cardano mainnet benchmark. (github.com)

No official peak TPS result from the public Musashi Dojo testnet has been published as of August 16. The next stage of testing is now focused on producing the parameter and throughput data needed for the Dijkstra rollout path

Leios Advances Toward the 1,000 TPS Showcase

Ouroboros Leios is Cardano’s proposed high-throughput consensus upgrade, designed to increase transaction capacity while retaining the security model of Ouroboros Praos. Linear Leios introduces additional block structures and committee-based certification so more transaction data can be processed in parallel.

The “Showcase 1k TPS” target covers load testing, transaction-validation benchmarks, comparisons with Praos and adversarial scenarios. The official roadmap describes a controlled demonstration around 200 TkB/s, with broader performance goals extending beyond the showcase itself.

Leios has previously exceeded 1,000 TPS in simulation environments, but the public Musashi Dojo network has not yet published an equivalent measured peak. The distinction leaves the showcase as a development target still being validated through live testnet work.

Musashi Dojo Enters the Water Phase

Musashi Dojo, the public test environment for Leios, has moved from Earth into Water, the second stage of its phased testing program. Water focuses on testing different timing settings, block-size configurations and component builds to identify combinations that improve throughput. (leios.cardano-scaling.org)

The latest prototype-2026w32 release also changes how operators participate in Leios certification. Block producers now use registered BLS verification keys, while nodes without the corresponding signing key operate as non-voting relays.

At the network layer, Leios nodes now generate and send endorser-block announcements to peers, an early step toward full announcement-based diffusion. The August 14 development update also added validation for malformed Dijkstra blocks and fixed observability issues affecting testnet metrics. (essentialcardano.io)

Endorser blocks are a core part of the Linear Leios design. They allow larger sets of transactions to be referenced and certified separately from standard Praos blocks, helping the network use available bandwidth and computation more efficiently as transaction volume increases.

Linear Leios Moves Along the Dijkstra Path

Linear Leios is included in Dijkstra Phase 1, placing the scaling protocol on Cardano’s formal hard-fork path alongside Nested Transactions and other ledger changes.

Intersect reported on August 14 that the Dijkstra scope and target dates remain unchanged. The current plan calls for technical completion, node releases, Preview and Pre-production testing, followed by a separate mainnet governance action before activation. (intersectmbo.org)

The rollout is expected to increase throughput gradually through protocol parameter changes rather than activate maximum capacity immediately. Stake pool operators will also need the BLS infrastructure required to participate in Leios committee certification.

Musashi Dojo’s Water phase is now designed to produce the performance data needed to refine those parameters and move Leios from a working public prototype toward reproducible benchmarks. Those results will shape the configuration and operator requirements carried forward into Cardano’s Dijkstra deployment.