Hey there @cp0x!
So two unsuccessful projects were:
DendrETH: A trustless oracle for liquid staking protocols and
[ZKLLVM] Trustless ZK-proof TVL oracle
They received only 1st half of the grant (i.e. 25K DAI each) failing to meet milestones.
So basically these remaining parts are reallocated to this project in a hope to build second-opinion ZKVM oracle, the grant disbursement scheme is the same.
Btw 1 of 3 applicants who got it to the implementation stage was Succinct team.