The short answer
On 13 August we corrected Cardano's profile, which said research deliverable D3.1 would publish a migration strategy as a Cardano Improvement Proposal. Input Output's own wording calls it a SIP. The profile and roadmap now use the source's term. This is a naming correction only: no score, tier or evidence changed, and no code moved.
What we fixed
Our Cardano profile described deliverable D3.1 of the chain's research program as publishing a post-quantum migration strategy in the form of a Cardano Improvement Proposal, usually shortened to CIP. That is the familiar name for Cardano's public proposal process.
Input Output, the research and engineering firm behind Cardano, uses a different term for this deliverable in its own write-up: a SIP. We had translated it into the more common label. That was our edit, not theirs, and it is the kind of small drift that makes a claim harder to check against the source.
The profile text and the roadmap entry now use the term the source uses. If you want to compare our wording to the original, the link is in the sources below.
Where to go next
- Cardano: the full rating Every dimension score, with the source behind each one, and what the rating means if you hold it.
- Moving to a quantum-ready chain If you have decided you want assets on a chain built for the quantum era, this is how that works in practice, and the honest case for not doing it.
- Which is the most quantum-resistant blockchain? One question, one answer, with the working shown. This page is a summary of the Hardy Index, which is the live ranking behind it.
Sources
Every dated event above carries its own primary source. These are those sources, each checked on the date shown.
- Cardano Vision 2026: the research program securing Cardano's next era Input | Output (IOG) · primary · checked 13 August 2026
- Cardano Vision 2026: Human Centred, Scalable, Post Quantum Secure (governance action) Cardano GovTool · primary · checked 11 August 2026
- CIP-19: Cardano Addresses Cardano Improvement Proposals · primary · checked 13 August 2026
This is a security-readiness assessment, not investment advice.