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: 1616
Hash: 0e7dea4d122a1c50d7f26d189a77c049e8b8058383e495958da6808d0dfd5a9d
Previous block: 6471d6c07f2b792f25b9062402c4ddda2f628a21b6e7a33c4c59a0571c91de1f
Next block: 1cd26580e04db413daaf0aca7ab17c068c886939f5514f45786f2f4c9f02b062
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159193
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: e40097856d0207a71b88c82242c557b2d93cd89199bacc38e2ad664ed984e342
Median time: 1719159192
Difficulty: 4.656542373906925e-10
Confirmations: 628
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ca2
Bits: 207fffff