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: 2290
Hash: 635f81ae56126c82f5e5b848c3a48ab8f4c724cd6fed9a0d8a109f17507be691
Previous block: 747dc157b924a63ec7ca98ce08832abf19f985e7632eba97dc11dca7691c5378
Next block: 277bcdc13c1391be598234ba8548f4ff2d42d247659912021273502402520eb0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847268
Stripped size: 218
Size: 254
Nonce: 6
Merkle root: 6e2a95415e48f321e826744bf11bf9f352c9e585fad6484509e179c321ffc682
Median time: 1743847267
Difficulty: 4.656542373906925e-10
Confirmations: 353
Chainwork: 00000000000000000000000000000000000000000000000000000000000011e6
Bits: 207fffff