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: 1157
Hash: 4225fa72b37f7cbabd9822a8a41a8080a0be87a79e77f0c070099294c32a9a03
Previous block: 26f43aa668659ba89cc176e02622ada994ef789b1bedcb2e98fdae3c562cee4d
Next block: 6f8bce22a2aba4f418ee18d29263071196a914b45b4e9a965f2658646d8d7365
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857861
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 6e4ad78466e20db971ebaedf2d4f84a079d1f43d8ad857d43ed88e60e0fc17b9
Median time: 1707857860
Difficulty: 4.656542373906925e-10
Confirmations: 1087
Chainwork: 000000000000000000000000000000000000000000000000000000000000090c
Bits: 207fffff