Mark Tyneway

Here are some various implementations that I have been able to find. - https://github.com/google/trillian - https://github.com/ethereum/research/tree/master/sparse_merkle_tree - https://github.com/loomnetwork/plasma-cash/blob/master/server/test/SparseMerkleTree.js - https://github.com/loomnetwork/plasma-cash/blob/master/server/contracts/Core/SparseMerkleTree.sol - https://github.com/aergoio/SMT

@mpetrunic Have you seen this issue? https://github.com/bcoin-org/bcrypto/issues/27 At runtime, `NODE_ENV` can be set as `js` and that might fix the problem. The require of the module looks like this: https://github.com/bcoin-org/bcrypto/blob/1d257bb1a505caf50181983f85a15a98d27de481/lib/pbkdf2.js#L9-L16...

@alexbarnsley @mpetrunic Have you tried the latest version of bcrypto? A lot has changed including the removal of OpenSSL as a dependency.

@majestic84 Thanks for submitting a PR. The tests will break without updating them as well See: https://github.com/tynes/lcoin/commit/df5c412eab494860a156aa4e1c4984f962f1e130 https://github.com/tynes/lcoin/commit/6083da2714eb9a671c8e1876a1324d9fc0f13a94

Just to be clear that the `StandardBridge` and the `L2ToL2CrossDomainMessenger` are in different bridge systems. The L1L2 bridging contracts are strictly different than the L2L2 bridging contracts, so a change...

I am generally in favor of this approach and would be open to getting it merged, I think it can be a powerful primitive. It doesn't solve the problem of...

I would like us to consider adding it to the L1 attributes transaction's calldata instead of in the extradata field for 2 reasons: 1) L1 may repurpose the extradata field...

> Submit the account storage root of the message passer for the previous block's post-state, which seems messy. These values are intended to be fetched off-chain rather than used on-chain,...

Putting it in the withdrawals root makes a lot of sense h/t @clabby Test case: - Make sure that the account root can be fetched if there is no diff...

I think its fine to target this towards granite now as we know its not landing in fjord