View in context in the libbitcoin Slack #general mirror.
auto const raw = bc::to_chunk(bc::base16_literal(
"010000000000000000000000000000000000000000000000000000000000000000000"
"0003ba3edfd7a7b12b27ac72c3e67768f617fc81bc3888a51323a9fb8aa4b1e5e4ada"
"e5494dffff7f200200000001010000000100000000000000000000000000000000000"
"00000000000000000000000000000ffffffff4d04ffff001d0104455468652054696d"
"65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b2"
"06f66207365636f6e64206261696c6f757420666f722062616e6b73ffffffff0100f2"
"052a01000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a6796"
"2e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b"
"6bf11d5fac00000000"));
bc::chain::block block_regtest;
block_regtest.from_data(raw); // or with witness = true