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: 2302
Hash: 1f8c3ad57eb9c0555c08fbae7b9a165f53f504baf1ddbf848bc3b8202544486c
Previous block: 503375f61c5c462364cb6eb017872ca7b8afd591cc155dfabf17117c01f433a0
Next block: 5787fb7b5bd4d5cf3cac2a5df9cf8098d99500b41669bf3feb700f1b82dead59
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847270
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 6bbd680a0f8dac3f7014668874ea7d4afe153624cbcdfa309cdb47e2e3c151f0
Median time: 1743847269
Difficulty: 4.656542373906925e-10
Confirmations: 341
Chainwork: 00000000000000000000000000000000000000000000000000000000000011fe
Bits: 207fffff