It would be easier to upgrade nodes, keys and wallets than having all this drama whenever someone feels like forking the blockchain.
Many keys pairs can be generated with ones seed. Each pair (public-private) could be classified by a hash of the public key, or just its ending numbers. Class 0 if it finishes by 0, class 1 if it finishes by 1 etc... Each chain would only accept transactions within their classes. Fork nodes should only accept unused classes for receivers, otherwise they would be malicious... well a sender has the control of the chain he/she's using by choosing which class he/she's sending money too. So even with a "malicious" fork the sender would be protected.
Topic: automatic Replay protection in the signatures and nodes (Read 350 times)
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