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: 1937
Hash: 35fdcbd94f0a1d0c86407a25bb6a500f2a659120e39919aacb98ae872947d8bb
Previous block: 6a154af302d42814c75b8253d1b4112375b9899bf951bfbb842f921728e4acba
Next block: 0a5b35a532b60587d3da2d600969807d838e79d5fe24221ec520f445ad799c83
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159246
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: b0dac9cc151794f5b6f65495516849332ca9da1af1d7aefce865e4a91002ee76
Median time: 1719159245
Difficulty: 4.656542373906925e-10
Confirmations: 307
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f24
Bits: 207fffff