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: 1880
Hash: 58c0c4082cd4771804552af10fce5566c6c658ee42696273042a7b1abd27957c
Previous block: 6e1bb4ab7d3904a2fa5c99d8c574aa9c0b23fcb5e0e95e69a5f6d5195ba5a047
Next block: 6eb6c8fc3db7da99ed93bee9abb5b59a34cf5974832b32c4bbaf0d4b4132c143
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159237
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: ccbcc9cebbefb60d78fe236757375e4bbaf51edb3f1489079d1c66c363933133
Median time: 1719159236
Difficulty: 4.656542373906925e-10
Confirmations: 364
Chainwork: 0000000000000000000000000000000000000000000000000000000000000eb2
Bits: 207fffff