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: 2259
Hash: 53c610773f0da7f7884aeaf4997ad87b0f46fb90c0b1005c74be7cab5d58f650
Previous block: 29c44aec0fc1c68fafa57bc26da873a00bcf84caec398d1fc86da9e0a2c881e0
Next block: 5e6a4dffbd4db3698906560ae1a3af4468fdf0568b0a573906e0842f374277f8
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480986
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 20b8b85e2a759a26b6a8e249225edf118257e84acb2571d649c1e7b4136bec1e
Median time: 1719480985
Difficulty: 4.656542373906925e-10
Confirmations: 33
Chainwork: 00000000000000000000000000000000000000000000000000000000000011a8
Bits: 207fffff