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Fix Statemint - Aura Key Scheme
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After Shell successfully processed the runtime upgrade to Statemint and handed over block production to the Statemint collators, they were not able to produce blocks due to a mismatch in key types. Specifically, Aura uses sr25519 keys to sign blocks, but the keys in the genesis chain spec were generated using ed25519.
A new runtime was created as a temporary fix. This runtime enables ed25519 in Aura for Statemint. This will be enacted on the Relay Chain so that validators will be able to validate the collator signatures. After the chain is producing blocks again, a follow up runtime upgrade will migrate Aura back to using sr25519 keys.
Call hash: 0x0e21b5233c7591ee89eca0cae71cf9a9a4c45fe2393075ab33361a673f5d322d
Preimage:
- Shell and Statemint were working together to produce blocks on a blockchain.
- They had a problem because the keys they were using didn't match.
- They made a temporary fix by creating a new runtime that allowed them to use the keys they had.
- This fixed the problem and they were able to start producing blocks again.
- They will make another change later to use the keys they originally wanted to use.
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