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: 958
Hash: 2f03a614826286fdafd3e52d284dbb312b36cdc399e8834ed0567bc197d41a2d
Previous block: 660467262e2016a20deb525c9d66e09995db8527076e5fc530c9e833d7cd0f39
Next block: 1188ad6a02a404870eaaa06c6cf2f955ee81f61cdfb83e5f6d47c78d83d0cdcc
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857828
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 6ae1ec574f3000326db88218b20abd7c789d00ad48edf550c1ca826e940f7075
Median time: 1707857827
Difficulty: 4.656542373906925e-10
Confirmations: 1286
Chainwork: 000000000000000000000000000000000000000000000000000000000000077e
Bits: 207fffff