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: 913
Hash: 5a1a9ed97a91b20c3b0a13eeeada58a05ce228d2f13a79e653fc6204f73d0f05
Previous block: 000bb7c7a4bf3a9e62adb3b4bd002127342827eea2c4823ec62606e51b1744c0
Next block: 1ee0270233dd1ad0c7843992a4f58d4cd87e5d19713f6c61110b1599a0f5a835
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857821
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 7d3f8363d514c6565df2560e09250a9ef3772ba6eddf92787a0659cdaae6b631
Median time: 1707857820
Difficulty: 4.656542373906925e-10
Confirmations: 1331
Chainwork: 0000000000000000000000000000000000000000000000000000000000000724
Bits: 207fffff