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: 1906
Hash: 7ee9e1e7191609cd7b1ba2e0c4a313170d2963caa6ebded8b371dac65fbf049e
Previous block: 786fc974a9b503b2240707fee7e10503e7150b33d15ce06ea4d590f69494b5fa
Next block: 0417d0689e6a93d9e9a2b11614450e87ecad195e50e7ed2f31d5947f9e843fe9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159241
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 02f318a109d02574070ac4eaf27172d4a025ece911ab5f507940843f454d259a
Median time: 1719159240
Difficulty: 4.656542373906925e-10
Confirmations: 338
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ee6
Bits: 207fffff