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: 215
Hash: 0e136713823bf281a2328cfd3d1efc1d1ab58a1bbec8441c50323ff70d89b0bb
Previous block: 710ccbc1a38c6f0deb45a21dd674af35fd1c8c80a205936aae92fceefe25458c
Next block: 0ad584fc3ce887bceadaa68759d0116278ce6a1c221d95a3e9a0474ecb3223ff
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597903
Stripped size: 218
Size: 218
Nonce: 2
Merkle root: 8073468902c6e357001a9e5e92fd08f5ba44920bc8c0df3869cd818ff613a2be
Median time: 1701597902
Difficulty: 4.656542373906925e-10
Confirmations: 2029
Chainwork: 00000000000000000000000000000000000000000000000000000000000001b0
Bits: 207fffff