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getblockchaininfo

Returns an object containing various state info regarding blockchain processing.

Result:

{
  "chain": "xxxx",        (string) current network name as defined in BIP70 (main, test, regtest)
  "blocks": xxxxxx,         (numeric) the current number of blocks processed in the server
  "headers": xxxxxx,        (numeric) the current number of headers we have validated
  "bestblockhash": "...", (string) the hash of the currently best block
  "difficulty": xxxxxx,     (numeric) the current difficulty
  "difficulty_algoname": x  (string) difficulty per algorithm after crow activation
  "mediantime": xxxxxx,     (numeric) median time for the current best block
  "verificationprogress": xxxx, (numeric) estimate of verification progress [0..1]
  "chainwork": "xxxx"     (string) total amount of work in active chain, in hexadecimal
  "size_on_disk": xxxxxx,   (numeric) the estimated size of the block and undo files on disk
  "pruned": xx,             (boolean) if the blocks are subject to pruning
  "pruneheight": xxxxxx,    (numeric) lowest-height complete block stored (only present if pruning is enabled)
  "automatic_pruning": xx,  (boolean) whether automatic pruning is enabled (only present if pruning is enabled)
  "prune_target_size": xxxxxx,  (numeric) the target size used by pruning (only present if automatic pruning is enabled)
  "softforks": [            (array) status of softforks in progress
     {
        "id": "xxxx",        (string) name of softfork
        "version": xx,         (numeric) block version
        "reject": {            (object) progress toward rejecting pre-softfork blocks
           "status": xx,       (boolean) true if threshold reached
        },
     }, ...
  ],
  "bip9_softforks": {          (object) status of BIP9 softforks in progress
     "xxxx" : {                (string) name of the softfork
        "status": "xxxx",    (string) one of "defined", "started", "locked_in", "active", "failed"
        "bit": xx,             (numeric) the bit (0-28) in the block version field used to signal this softfork (only for "started" status)
        "startTime": xx,       (numeric) the minimum median time past of a block at which the bit gains its meaning
        "timeout": xx,         (numeric) the median time past of a block at which the deployment is considered failed if not yet locked in
        "since": xx,           (numeric) height of the first block to which the status applies
        "statistics": {        (object) numeric statistics about BIP9 signalling for a softfork (only for "started" status)
           "period": xx,       (numeric) the length in blocks of the BIP9 signalling period 
           "threshold": xx,    (numeric) the number of blocks with the version bit set required to activate the feature 
           "elapsed": xx,      (numeric) the number of blocks elapsed since the beginning of the current period 
           "count": xx,        (numeric) the number of blocks with the version bit set in the current period 
           "possible": xx      (boolean) returns false if there are not enough blocks left in this period to pass activation threshold 
        }
     }
  }
  "warnings" : "...",         (string) any network and blockchain warnings.
}

Examples:

avian-cli getblockchaininfo