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: 1192
Hash: 3f8214aef367b3398c9ab981f2e6d7a17f9648a47968140ac43c5a7f6ca8c430
Previous block: 0cb43e7a923136576a1bd325c370336780670b9c3316c009f43b2b4a7691f219
Next block: 78b89149b94e1986d7877d5f2f575a717d6baa7ff1a615e38007a61077fd09b4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857867
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 5bf4ecb37e4ead2f3376d4e0a4d494c5497c553398e0c166bcb6cd5339b9fb8a
Median time: 1707857866
Difficulty: 4.656542373906925e-10
Confirmations: 1052
Chainwork: 0000000000000000000000000000000000000000000000000000000000000952
Bits: 207fffff