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. mupBAc74k

Height: 2205
Hash: 5ca57b0472f78e19505fd386b8dc2e0ff69f51c55374030c2b1e82e94b19e7e7
Previous block: 6735c5a7581f7163a2652ec56d0fbb70a09e3e3b22edfcb57965af27d14749ed
Next block: 28f6855f4ef4e386df881e0ac962f2e1ba9384208975b9902d0d01d047a69b41
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480977
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: cc73c8af4fb8448db41cf3047538d3ff91cd705d73e095eb26e137a94d63a01f
Median time: 1719480976
Difficulty: 4.656542373906925e-10
Confirmations: 87
Chainwork: 000000000000000000000000000000000000000000000000000000000000113c
Bits: 207fffff