According to @OnchainLens, Vitalik Buterin donated a total of 256 ETH to SimpleXChat and Session via Railgun, with the transfers visible under tx hashes 0x55f50e09fae2fca23a0824a28e07e8d6874bbeba0f6eebd79785f707718d7008 and 0xbd876d58fca5e5b557423d41362bf194b72e28fa06e064d9482863888f2c5fa0, source: Onchain Lens; Etherscan. @OnchainLens also reports that this followed an earlier move of 1,006 ETH valued at $2.93 million to the RAILGUN Project, source: Onchain Lens. Traders can validate timing and size of these flows via the referenced Etherscan transaction hashes for real-time on-chain monitoring, source: Etherscan.