Karma's a bitch huh?
There is a real interesting story of the Tu-4 Bull and the B-29. In 1943, the then secret B-29 was leaked by Captain Eddie Rickenbacker during a government mission to Russia in 1943. The Russians wanted the plane as part of Lend-Lease but was denied by the United States. However, three B-29s were impounded by the Russians when they landed there. The three B-29s were named Ramp Tramp (42-6256), Ding Hao (42-6358), and The General H.H. Arnold Special (42-6365).Ramp Tramp was disassembled for examination and was the template.
I do agree on a Tupolev Bull as a B-29 knock-off but Conrord and ‘Concordsky’ are actually two different planes. Tu-144 first flew before Concord did.