| Report Date | 2025/09/12 |
| Submitted by | Davide Galassi |
Core contributor to PolkaJam, Parity's implementation of the JAM protocol. My recent work mostly focused on ensuring strict compliance with the Gray Paper specifications.
Parity colleagues can review my contributions in the project repository.
Authored the official test vectors for JAM Gray Paper versions 0.6.7 and 0.7.0 in
PR #54 and
#55 respectively.
These vectors became the widely accepted reference for JAM, significantly
accelerating interoperability across implementations. Multiple teams have
already adopted them successfully, using them to detect and resolve
implementation issues.
I'am leading the development of a JAM fuzzer, which is expected to become the official tool for fuzzing third-party implementations during the M1 audit phase.
The tool is already in active use, continuously discovering bugs across
multiple implementations. Findings are publicly reported and discussed
(see next section).
My work on the fuzzer can be found in PolkaJam PR
#510.
I'm maintaining the JAM Conformance Testing Material repository, a central resource for ensuring protocol compliance across implementations.
The repository is used to track implementor progress,
share fuzzer reports,
and host discussions,
helping teams quickly identify and resolve divergences.
This living resource is regularly updated, keeping the community aligned on
discoveries. It is having a significant impact in accelerating JAM protocol
implementation and improving cross-implementation reliability.
I also designed and maintain the fuzzer protocol
specification,
which defines the communication protocol between the fuzzer and its targets.
I established the foundations for performance benchmarking of JAM implementations.
While still rough, the results already provides useful insights into execution
times, which are critical for estimating the duration of the M1 audit: achieving
consistent confidence across implementations requires running the same number
of fuzzer steps on both fast and slow implementations.
The raw data from this work powers the
JAM Conformance Dashboard,
which presents performance metrics in a clear and accessible way for the
broader community.
Offered occasional support to JAM implementers in public channels,
primarily on topics within my areas of expertise.
Set up structured cross-team collaboration workflows through the dedicated
JAM Conformance channel
and the JAM Conformance repository.
Provide your voting record in relation to required thresholds for your rank.
| Ranks | Activity thresholds | Agreement thresholds | Member's voting activities | Comments |
|---|---|---|---|---|
| I | 90% | N/A | None | There was nothing to vote on |
| II | 80% | N/A | None | There was nothing to vote on |
| III | 70% | 100% | ||
| IV | 60% | 90% | ||
| V | 50% | 80% | ||
| VI | 40% | 70% |
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