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: 1634
Hash: 056b7e61f1aa9cac402b801e752b7681f2db7d10d1e26b5e1510dc30161f43ac
Previous block: 5a24a578ed7e5320f613127cf4e133936d14dc075eb16509cf7a5919a33cf521
Next block: 70439d3c278cd73794f87a8ea2ca023e2d1239a832d8b22103df9ca7b731072c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159196
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 888fcc636a98cbbcc8cab46efd281b40c3ec1a0e44affc4fd21b6f8cfdca0b02
Median time: 1719159195
Difficulty: 4.656542373906925e-10
Confirmations: 610
Chainwork: 0000000000000000000000000000000000000000000000000000000000000cc6
Bits: 207fffff