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.

home    blocks

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

Height: 2457
Hash: 46e9270fda93beeb086ab93df3ca159caae9e63f659ed41478a219b396b08221
Previous block: 267dd2b659aa84f3678d9ccb37356b6866755e550f57a2466d4be1d6b70a12ec
Next block: 4b55c228679997728b54b0a0e90f1a38d588586af81a8e4476850b615381de28
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847296
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 46cd2425f5fac03698cd8682d583f0510ccaa0b77c5f433a857b2c7d07786b53
Median time: 1743847295
Difficulty: 4.656542373906925e-10
Confirmations: 186
Chainwork: 0000000000000000000000000000000000000000000000000000000000001334
Bits: 207fffff