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: 1063
Hash: 3f23e1ab5f5af445c566015e1ec56c6d1337f3e72adda3847201cb50cd7daccf
Previous block: 4bf60e0abd448fcff8e9d3d9acd77ec1a83d73d7c0269f97aefde6ebb06b8459
Next block: 1aa84daabfcd2867ee7250c7e1d0471d768462b7fea77dd0256de731c02bf624
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857846
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 21f475e1390ee408ce1d63a7edc851e707e5095a8ff62455bb2610aaa2589be3
Median time: 1707857845
Difficulty: 4.656542373906925e-10
Confirmations: 1181
Chainwork: 0000000000000000000000000000000000000000000000000000000000000850
Bits: 207fffff