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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 363
Hash: 6e85621f0ab926b9d90a0ed510becf3478273c1843d4dba6d29c722c2ac0d6cf
Previous block: 6802fa2132af06f9be558eedcfa18ef9a63d86eb3b723137eb5c5479b7d3aa20
Next block: 1d3fcea51e7c6c104c4faf68624733c2d646f2f36d9ca3dc221636fc2232b0b0
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597928
Stripped size: 218
Size: 218
Nonce: 1
Merkle root: d6adb99661409c01e3a9b7ebeb29dbc852dc01905b9725d5e48add80d84aae2e
Median time: 1701597927
Difficulty: 4.656542373906925e-10
Confirmations: 1881
Chainwork: 00000000000000000000000000000000000000000000000000000000000002d8
Bits: 207fffff