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: 2051
Hash: 139c228657a86697a726fd362f5458d51e4bdd4d75dc2c6a8e9e4220896dedc7
Previous block: 481cfe6dc530e9ccbb4b7ab2ee23aae533513d84ece2ad54cac391282b87c52c
Next block: 7c7f2ff4895db966b32d725f02f7c9d8fdcd7e3fc46bb52807df9beee6bb8bb1
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964778
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: dc28f5e662e8e73c3e2000770dde874c4153c4393eb3e07fb8085d7e4c3a584e
Median time: 1728964778
Difficulty: 4.656542373906925e-10
Confirmations: 193
Chainwork: 0000000000000000000000000000000000000000000000000000000000001008
Bits: 207fffff