getmempoolancestors "txid" ( verbose )
If txid is in the mempool, returns all in-mempool ancestors.
Arguments:
1. txid (string, required) The transaction id (must be in mempool)
2. verbose (boolean, optional, default=false) True for a json object, false for array of transaction ids
Result (for verbose = false):
[ (json array)
"hex", (string) The transaction id of an in-mempool ancestor transaction
...
]
Result (for verbose = true):
{ (json object)
"transactionid" : { (json object)
"vsize" : n, (numeric) virtual transaction size as defined in BIP 141. This is different from actual serialized size for witness transactions as witness data is discounted.
"weight" : n, (numeric) transaction weight as defined in BIP 141.
"time" : xxx, (numeric) local time transaction entered pool in seconds since 1 Jan 1970 GMT
"height" : n, (numeric) block height when transaction entered pool
"descendantcount" : n, (numeric) number of in-mempool descendant transactions (including this one)
"descendantsize" : n, (numeric) virtual transaction size of in-mempool descendants (including this one)
"ancestorcount" : n, (numeric) number of in-mempool ancestor transactions (including this one)
"ancestorsize" : n, (numeric) virtual transaction size of in-mempool ancestors (including this one)
"wtxid" : "hex", (string) hash of serialized transaction, including witness data
"fees" : { (json object)
"base" : n, (numeric) transaction fee, denominated in BTC
"modified" : n, (numeric) transaction fee with fee deltas used for mining priority, denominated in BTC
"ancestor" : n, (numeric) transaction fees of in-mempool ancestors (including this one) with fee deltas used for mining priority, denominated in BTC
"descendant" : n (numeric) transaction fees of in-mempool descendants (including this one) with fee deltas used for mining priority, denominated in BTC
},
"depends" : [ (json array) unconfirmed transactions used as inputs for this transaction
"hex", (string) parent transaction id
...
],
"spentby" : [ (json array) unconfirmed transactions spending outputs from this transaction
"hex", (string) child transaction id
...
],
"bip125-replaceable" : true|false, (boolean) Whether this transaction signals BIP125 replaceability or has an unconfirmed ancestor signaling BIP125 replaceability.
"unbroadcast" : true|false (boolean) Whether this transaction is currently unbroadcast (initial broadcast not yet acknowledged by any peers)
},
...
}
Examples:
> bitcoin-cli getmempoolancestors "mytxid"
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "getmempoolancestors", "params": ["mytxid"]}' -H 'content-type: text/plain;' http://127.0.0.1:8332/
