docs: ADR026 Authored Namespaces

[evan-forbes]

Overview

Cute little idea for a flavor of permissioned namespaces that is really simple and stateless!

This is actually part of the ordering work, as having namespaces that only a specific user can post to is required for some designs.

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[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 2 additional findings.

[rach-id]

[questions]
1. How to reserve a namespace? just by specifying namespace version 1? is it a paid feature?
2. what if a PFB or another PP in the same block use the same namespace but specify version 0, which one will be used? who has precedence? or both will be included?
3. Is the goal of this proposal to stop other accounts from posting to the authored namespaces? Or if there is no PP that uses it for a block, anyone else can put a namespace 0 there?

Got my answers. I have new ones, can you expand on:

This is actually part of the ordering work, as having namespaces that only a specific user can post to is required for some designs.

How is this part of the ordering work? which designs require this?

[evan-forbes]

How is this part of the ordering work? which designs require this?

all will be revealed with time

jk

the fibre validators don't know who is supposed to be a proposer for whatever chain, therefore any one could propose for a slot.

this avoids that as now the rollup protocol can look for a proposal from a specific rollup proposer