The explorer is running in 'regtest' mode. This saves disk space, but there is limited data.
The code for this application can be found at github.com/pdxrod/blockchain_explorer.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 737
Hash: 439bc234f1cb67efac4e219401cf90b01c60b8b647a75a8cb0aa8d35a059b3f2
Previous block: 6038da3b437ebc2d85163e0f5e5dbba94f32baa6632770f386521f1a7f602f98
Next block: 172fc50fb2ec2d9c3d3213dc1d6a532da2bf73c24cdad3bfb540fabcfc7da644
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864266
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 5d6b26f2b0e4e51b1644b31396910b48da3818eef855a8c93830b7229c691af9
Median time: 1701864265
Difficulty: 4.656542373906925e-10
Confirmations: 1507
Chainwork: 00000000000000000000000000000000000000000000000000000000000005c4
Bits: 207fffff