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The slots and epochs section of the Cardano Stake Pool Course states that the Ouroboros Praos protocol is proprietary.

Is this correct and, if so, is there a reason why this central part of the implementation needs to be proprietary?

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    Great catch! I have no idea how the word "proprietary" found its way in there. It's wrong, of course. I've just merged your pull request. BTW we moved this old course to the new developer portal that is being built. A lot of things are already improved, but if someone wants to contribute to the SPO category, please get in touch with me. Jun 1, 2021 at 9:49
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    @adatainment I'd be interested in contributing. Also - it would be good to see whether Chris Moreton's fork of plutus-pioneer-program can be merged, he is doing a great job of documenting the lectures: plutus-pioneer-program.readthedocs.io/en/latest
    – isedwards
    Jun 1, 2021 at 13:24

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That is not correct!

The ledger specifications are licensed under Apache License 2.0 and the paper is also open to public.

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  • To be fair, the source states "The Cardano blockchain uses the proprietary Ouroboros Praos protocol to facilitate consensus on the chain." Jun 1, 2021 at 2:07
  • Yes, the source is wrong. Or probably the wording is wrong. Jun 1, 2021 at 6:23
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    I've created an issue here to get the source corrected
    – isedwards
    Jun 1, 2021 at 9:38
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    And the CF merged it right away! CF rocks. Jun 1, 2021 at 12:37

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