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Mithril Team Update

· 2 min read
Jean-Philippe Raynaud
Jean-Philippe Raynaud
Mithril Tech Lead

High level overview​

This week, the Mithril team continued implementing the certification of Cardano transactions in Mithril networks. They implemented a warmup strategy for the signer and aggregator to begin importing transactions as early as possible, thus minimizing the impact of network activation on certification. They also significantly improved the throughput of the prover route of the aggregator by addressing database access bottlenecks. Additionally, the team made progress on low-latency certification by completing the handling of chain rollbacks and nearly completing the retrieval of transactions using the chain sync mini-protocol and Pallas.

Finally, they made final modifications to the threat modeling explainer for the documentation website, which will be released shortly, and worked on a bug that occurs when parsing some blocks of the SanchoNet network.

Low level overview​

  • Completed the issue Handle rollbacks in Cardano transactions #1724
  • Completed the issue Pooled resources should be reset when given back #1743
  • Completed the issue Lock signature of signed entity types during warm-up #1693
  • Completed the issue Warmup import Cardano transactions at node startup #1692
  • Completed the issue Build, test and package arm64 binaries in CI #1751
  • Worked on the issue Threat modeling and risk analysis #1350
  • Worked on the issue Import Cardano transactions with ChainReader #1705
  • Worked on the issue Import Cardano transactions by sequences of block ranges #1766
  • Worked on the issue Implement database connection pooling for Cardano transaction repository #1760
  • Worked on the issue Cardano signatures are not produced on testing-sanchonet #1750

Mithril Team Update

· 2 min read
Jean-Philippe Raynaud
Jean-Philippe Raynaud
Mithril Tech Lead

High level overview​

This week, the Mithril team released the new distribution 2423.0, which includes the removal of the snaphot command of the client CLI, as well as bug fixes and optimizations. They also continued implementing the certification of Cardano transactions in Mithril networks and improved the throughput of the prover route of the aggregator by fixing some bottlenecks in the Merkle proof computation. Additionally, the team made progress on low-latency certification by working on the retrieval of the transactions with the chain sync mini-protocol and Pallas, as well as the handling of rollbacks of the chain.

Finally, they kept working on the threat modeling explainer for the documentation website and provided support for multiple TLS implementations in the client library thanks to a community contribution.

Low level overview​

  • Released the new distribution 2423.0
  • Publication of a dev blog post about the removed Mithril client CLI 'snapshot' command
  • Completed the issue Client verification fails with an already stored but non certified yet transaction #1719
  • Completed the issue Computation of Merkle proof has bottleneck with multiple transactions #1730
  • Completed the issue Automatic rollback on SQL transactions #1741
  • Completed the issue Allow the underlying TLS implementation to be selectable when using a library. #1737
  • Completed the issue Release 2423 distribution #1695
  • Completed the issue Mithril Signer Local Error Policy : Error 182 - MuxError #1632
  • Worked on the issue Handle rollbacks in Cardano transactions #1724
  • Worked on the issue Pooled resources should be reset when given back #1743
  • Worked on the issue Threat modeling and risk analysis #1350
  • Worked on the issue Import Cardano transactions with ChainReader #1705

Mithril Team Update

· 2 min read
Jean-Philippe Raynaud
Jean-Philippe Raynaud
Mithril Tech Lead

High level overview​

This week, the Mithril team continued implementing the certification of Cardano transactions in Mithril networks. They improved the throughput of the prover route of the aggregator by using resource pooling and made progress on low-latency certification by transitioning to a chain point-based beacon, which allows for faster transaction signing. They also kept investigating prover performance bottlenecks, worked on fixing a bug that caused unsigned transactions to appear as signed, and continued implementing the import of transactions with the ChainSync mini-protocol and Pallas.

Additionally, the team started preparing the threat modeling explainer for the documentation website and kept investigating some Cardano node error messages that could be caused by how the Pallas client handles connections to mini-protocols.

Low level overview​

  • Completed the issue Implement Resource Pooling for Block Range Merkle maps #1698
  • Completed the issue Sign Cardano transactions with ChainPoint based beacon #1697
  • Completed the issue Cardano transactions prover performances drop with more than 5 transactions #1722
  • Worked on the issue Import Cardano transactions with ChainReader #1705
  • Worked on the issue Client verification fails with an already stored but non certified yet transaction #1719
  • Worked on the issue Computation of Merkle proof has bottleneck with multiple transactions #1730
  • Worked on the issue Threat modeling and risk analysis #1350
  • Worked on the issue Release 2423 distribution #1695
  • Worked on the issue Mithril Signer Local Error Policy : Error 182 - MuxError #1632

Mithril Team Update

· 2 min read
Jean-Philippe Raynaud
Jean-Philippe Raynaud
Mithril Tech Lead

High level overview​

This week, the Mithril team released a new Mithril protocol insights dashboard and a new explorer page displaying active and deregistered SPOs for the latest Cardano epochs. They also continued implementing the certification of Cardano transactions in Mithril networks by improving the throughput of the prover route of the aggregator and making progress on low-latency certification by completing the implementation of a chain block reader from the Cardano mini-protocol with Pallas.

Additionally, the team started working on a new beacon for signing Cardano transactions based on the chain point. Finally, they refactored the persistence library, enhanced their testing tools for Cardano transactions, and fixed a block parsing problem that prevented the signature of Cardano transactions in the test networks.

Low level overview​

  • Released the Mithril Protocol Insights Dashboard
  • Completed the issue Prototype optimizations for increasing Cardano transactions proof generation throughput #1687
  • Completed the issue Retrieve Cardano blocks with chainsync in pallas PoC #1590
  • Completed the issue Explorer display in/out SPOs in registered signers page #1686
  • Completed the issue Create a test Cardano transactions builder #1667
  • Completed the issue Cardano signatures are not produced on testing-sanchonet and testing-mainnet #1681
  • Completed the issue Remove snapshot command in client CLI #1690
  • Completed the issue Block Streamer returns ChainScannedBlocks #1704
  • Completed the issue Remove connections coupling with providers in database #1711
  • Worked on the issue Implement Resource Pooling for Block Range Merkle maps #1698
  • Worked on the issue Sign Cardano transactions with ChainPoint based beacon #1697
  • Worked on the issue Import Cardano transactions with ChainReader #1705
  • Worked on the issue Mithril Signer Local Error Policy : Error 182 - MuxError #1632

Mithril Team Update

· 2 min read
Jean-Philippe Raynaud
Jean-Philippe Raynaud
Mithril Tech Lead

High level overview​

This week, the Mithril team continued implementing the certification of Cardano transactions in Mithril networks. They worked on scaling proof generation for mainnet by prototyping optimizations and benchmarking performance improvements. They also made progress on low-latency certification by completing the retrieval of the chain tip and importing transactions from the Cardano mini-protocol with Pallas. Additionally, they worked on a new explorer page to display in/out SPOs for the latest Cardano epochs.

Finally, the team upgraded the testing-sanchonet network following the SanchoNet network respin, created a module for building test transactions, and began removing the deprecated snapshot command from the client CLI.

Low level overview​

  • Completed the issue Aggregator stress test crashes during signer registration #1676
  • Completed the issue Prune Cardano transactions stored on signer #1645
  • Completed the issue ChainObserver supports retrieving the Chain Point of the tip of the chain #1589
  • Completed the issue Prepare testing-sanchonet for respin with Cardano 8.11-pre #1694
  • Completed the issue MacOS Rust tests are flaky in CI #1556
  • Worked on the issue Prototype optimizations for increasing Cardano transactions proof generation throughput #1687
  • Worked on the issue Retrieve Cardano blocks with chainsync in pallas PoC #1590
  • Worked on the issue Explorer display in/out SPOs in registered signers page #1686
  • Worked on the issue Create a test Cardano transactions builder #1667
  • Worked on the issue Cardano signatures are not produced on testing-sanchonet and testing-mainnet #1681
  • Worked on the issue Remove snapshot command in client CLI #1690
  • Worked on the issue Mithril Signer Local Error Policy : Error 182 - MuxError #1632