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: 2269
Hash: 25762e2cdcb72ffeddd5865530c1980894aa7ec568811e13199a4bf14caaf60c
Previous block: 27e7f4df62bf48a19cda532fe211ef2b241cf2124f87eef3d5cb73f935038c6e
Next block: 1349d0b7d08c93e4d0fc9e5f70b3db062d1c9195e2ac0ed1d5e1da32c9a7b1e0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480987
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: b24132df162c7c11f09da084c3776d4282cd1ff2f334ede002c8fdd4c9ba6c85
Median time: 1719480987
Difficulty: 4.656542373906925e-10
Confirmations: 23
Chainwork: 00000000000000000000000000000000000000000000000000000000000011bc
Bits: 207fffff