Eva

@BigLep - To prevent API endpoints ever possibly getting out of sync, my read of https://github.com/filecoin-project/lotus/pull/13299#discussion_r2322464994 is that it might be good to ensure `ChainGetFinalizedTipSet` references `GetHeaviestTipSet` under the hood???

Please remove the unstable label of the v1 API (e.g. https://github.com/filecoin-project/lotus/tree/master/documentation/en) It's discourages devs from using it, when in fact, we recommend the v1 API over v0 Perhaps "mutable" might...

I had wondered if this might be related to signDataCap and signClientDeal, methods for Fil+, but Hugo pointed out that these have separate methods: https://github.com/LedgerHQ/app-filecoin/blob/develop/app/src/apdu_handler.c#L540-L559

FYI - I'm asking the Fil+ team how this might impact their current workflows here: https://filecoinproject.slack.com/archives/C01DLAPKDGX/p1731581852642289 Update: the Fil+ team would also like the extra CID operation below removed to...

Summary of next steps from the Fil+ thread. Can you please: - remove `signClientDeal` entirely (this is unused and closed in https://github.com/filecoin-project/lotus/issues/5386 as 'won't fix') - `signDataCap` - remove the...

`signDataCap` can be removed, confirmed with FIDL (they are moving away from it anyway)

Update: [FRC-0102: Wallet-Signing Envelope for Arbitrary Messages](https://github.com/filecoin-project/FIPs/blob/master/FRCs/frc-0102.md) has now been merged and the EIP-191 spec for the Filecoin ecosystem can be implemented.