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: 1894
Hash: 7860416084ca6aec1eea38bcaebe9db3df88ddd62f6e286f5bf2464f885b627f
Previous block: 125774db02564248fff8d4fa3dbd55b42c16aeb0dd28285647d3a7a8fb44febc
Next block: 59cb66998ce295786ad4caff1e8ff2bf249382fc2a41bbc4bf06bfdd97f49674
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159239
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: ae53eea7618f153766734bc359c91134a63252824a1792bc15cdbd7206fab4f5
Median time: 1719159238
Difficulty: 4.656542373906925e-10
Confirmations: 350
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ece
Bits: 207fffff