How does MuSig work in actual Bitcoin eventualities? Questions on communication and steps

Signature Technology

1. Let L = h(P1 || ... || Pn). Every participant computes the digest: ai = h(L || Pi).
2. Compute the aggregated public key: X̃ = Σ (ai * Pi) for i = 1, ..., n. X̃ is made public.
3. Every participant randomly selects ri and computes: Ri = ri * G. Every participant sends their dedication: ti = h(Ri) to all different individuals.
4. After receiving the opposite n-1 commitments, every participant sends their level Ri.
5. After receiving the opposite n-1 factors Ri, every participant verifies: ti = h(Ri) for all i ∈ {1, ..., n}.
6. Calculate the aggregated level: Rsum = R1 + ... + Rn.
7. Every participant computes the problem: c = h(Rsum || X̃ || M).
8. Every participant calculates their partial signature: si = ri + c * di * ai mod N.Lastly, compute the aggregated signature: ssum = s1 + ... + sn mod N.
9. The signature is the pair (Rsum, ssum).

Signature Verification
Test if:
ssum * G = Rsum + c * X̃.

Questions:

1. Sharing ti, Ri, and si:
   How do individuals ship their commitments (ti), share their Ri values, and change partial signatures (si)? What does this course of appear like in apply? Is there an ordinary, asynchronous, and user-friendly option to handle this in software program? Or do individuals have to manually compute their si, sum them, and share the outcomes backwards and forwards?

2. Verification Course of:
   Who verifies the ultimate signature (Rsum, ssum)? When and the way does this verification occur in real-world Bitcoin use instances? Is the verification accomplished by way of P2SH scripts?
   And relating to the initiation of the verification course of—does a participant (e.g., one of many multisig signers) who has collected all of the Rsum and ssum values create the transaction from the P2SH tackle? Or am I misunderstanding this movement?

3. What Occurs With out Commitments?
   What might an adversary do if the commitments (ti) weren’t a part of the protocol? What sort of assaults might happen, and the way would they exploit the shortage of commitments?