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: 904
Hash: 4cd7a415521f8347e88471a8c84c77b3ea65ba2b13c1b8f6e6ddc9a1852deb99
Previous block: 5a0b2cc826f2b0749da53c574fe98f5eb833ded900a121fbd0ed733ef68c5c07
Next block: 2f09d33dcaf0ef46bac6eb86a6e2cad95010e8e786c711ab129c2908ad470f5c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857819
Stripped size: 218
Size: 254
Nonce: 7
Merkle root: 4fbf6053862f46c8a1122e5f861d717c599d3c8510b74b75824c86f9d1a51055
Median time: 1707857818
Difficulty: 4.656542373906925e-10
Confirmations: 1340
Chainwork: 0000000000000000000000000000000000000000000000000000000000000712
Bits: 207fffff