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: 2263
Hash: 3bbeb4c35655cb6c9b4a60a9cac4f0dd05f1c9de23d4dd7f3f9873f9975d314b
Previous block: 411f4e40cd34a68c2da025ff83d0041cdc9694ab2108ed5626a3ee41887f4ac6
Next block: 6448c136b4f6afc23b7937ebd51cb849b40a7edfc7c686b627a0ed45e7e16b3c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847264
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 7f439839569f686344e9ce155ed8c88ecda3f8d51ebb844ddeab8b321d0c230a
Median time: 1743847263
Difficulty: 4.656542373906925e-10
Confirmations: 380
Chainwork: 00000000000000000000000000000000000000000000000000000000000011b0
Bits: 207fffff