The original idea to structure transaction outputs as elliptic curve points so that they would automatically benefit from transaction cut-through was put forth in a paper called Mimblewimble. Two coins tried to implement the idea, Grin and Beam (IIRC). Much later, Litecoin also adopted the idea for an extension block with different rules than the regular on-chain transactions.
The original idea to structure transaction outputs as elliptic curve points so that they would automatically benefit from transaction cut-through was put forth in a paper called Mimblewimble. Two coins tried to implement the idea, Grin and Beam (IIRC). Much later, Litecoin also adopted the idea for an extension block with different rules than the regular on-chain transactions.