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: 2601
Hash: 023e70b4be18ddaf91d8c9fd1adcfe78a15f33f88a66ef55de8d93e499428f3e
Previous block: 38d0b798ea09580c2f5170c39325d710fce0e66b13719cb46a2399a827a0b106
Next block: 756ecb8a7bcd20ef45692b5e6fdf3ff2a94256248556581d252bc86b7d46b024
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847320
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 78602a0a2644d04405380bbadf48ff7d8613726473feeabf36aa870ec5b5aec1
Median time: 1743847319
Difficulty: 4.656542373906925e-10
Confirmations: 42
Chainwork: 0000000000000000000000000000000000000000000000000000000000001454
Bits: 207fffff