getblock "hash" ( verbose )

If verbose is false, returns a string that is serialized, hex-encoded data for block 'hash'.
If verbose is true, returns an Object with information about block .

1. "hash" (string, required) The block hash
2. verbose (boolean, optional, default=true) true for a json object, false for the hex encoded data

Result (for verbose = true):
"hash" : "hash", (string) the block hash (same as provided)
"confirmations" : n, (numeric) The number of confirmations, or -1 if the block is not on the main chain
"size" : n, (numeric) The block size
"height" : n, (numeric) The block height or index
"version" : n, (numeric) The block version
"merkleroot" : "xxxx", (string) The merkle root
"tx" : [ (array of string) The transaction ids
"transactionid" (string) The transaction id
"time" : ttt, (numeric) The block time in seconds since epoch (Jan 1 1970 GMT)
"nonce" : n, (numeric) The nonce
"bits" : "1d00ffff", (string) The bits
"difficulty" :, (numeric) The difficulty
"previousblockhash" : "hash", (string) The hash of the previous block
"nextblockhash" : "hash" (string) The hash of the next block

Result (for verbose=false):
"data" (string) A string that is serialized, hex-encoded data for block 'hash'.

> bitcoin-cli getblock "00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09"
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getblock", "params": ["00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09"] }' -H 'content-type: text/plain;'
Don't trust. Verify. Docs extracted from src/rpcblockchain.cpp#L243-L277.