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: 2429
Hash: 5fbc68dde038ca76da2ff2513b3487cced1c517e25ee37bc15eaba732d09a66f
Previous block: 44ff95fc1b6904eff953ea96714b0a841cf6dca5885697abe4f9e8f08e1ce8c2
Next block: 57c2c092d3227f3f46a93772a5e1f9001baabfcca6f00573f6e11e1aea527fef
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847291
Stripped size: 218
Size: 254
Nonce: 7
Merkle root: 32e10bfbe77726f49653abe55f57d863512254a88f4442f19770f6274ac9b384
Median time: 1743847291
Difficulty: 4.656542373906925e-10
Confirmations: 214
Chainwork: 00000000000000000000000000000000000000000000000000000000000012fc
Bits: 207fffff