A web based interface to the Bitcoin API JSON-RPC

Command: signrawtransaction

The signrawtransaction RPC signs a transaction in the serialized transaction format using private keys stored in the wallet or provided in the call.

Parameter #1—the transaction to sign
Parameter #2—unspent transaction output details
Parameter #3—private keys for signing
Parameter #4—signature hash type
Result—the transaction with any signatures made

The transaction to sign as a serialized transaction.
Click "+" to add more dependencies. The previous outputs being spent by this transaction including:
  • The TXID of the transaction the output appeared in. The TXID must be encoded in hex in RPC byte order.
  • The index number of the output (vout) as it appeared in its transaction, with the first output being 0.
  • The output’s pubkey script encoded as hex.
  • If the pubkey script was a script hash, this must be the corresponding redeem script
Note: Dependancies are optional, but if included the following is required: TXID, Vout and pubkeyscript.
Click "+" to add more keys, "-" to remove added keys. A private key in base58check format to use to create a signature for this transaction.
The type of signature hash to use for all of the signatures performed. (You must use separate calls to the signrawtransaction RPC if you want to use different signature hash types for different signatures.
signrawtransaction "hexstring" ( [{"txid":"id","vout":n,"scriptPubKey":"hex","redeemScript":"hex"},...] ["privatekey1",...] sighashtype )

Sign inputs for raw transaction (serialized, hex-encoded).
The second optional argument (may be null) is an array of previous transaction outputs that
this transaction depends on but may not yet be in the block chain.
The third optional argument (may be null) is an array of base58-encoded private
keys that, if given, will be the only keys used to sign the transaction.

Requires wallet passphrase to be set with walletpassphrase call.

1. "hexstring"     (string, required) The transaction hex string
2. "prevtxs"       (string, optional) An json array of previous dependent transaction outputs
     [               (json array of json objects, or 'null' if none provided)
         "txid":"id",             (string, required) The transaction id
         "vout":n,                  (numeric, required) The output number
         "scriptPubKey": "hex",   (string, required) script key
         "redeemScript": "hex",   (string, required for P2SH or P2WSH) redeem script
         "amount": value            (numeric, required) The amount spent
3. "privkeys"     (string, optional) A json array of base58-encoded private keys for signing
    [                  (json array of strings, or 'null' if none provided)
      "privatekey"   (string) private key in base58-encoding
4. "sighashtype"     (string, optional, default=ALL) The signature hash type. Must be one of

  "hex" : "value",           (string) The hex-encoded raw transaction with signature(s)
  "complete" : true|false,   (boolean) If the transaction has a complete set of signatures
  "errors" : [                 (json array of objects) Script verification errors (if there are any)
      "txid" : "hash",           (string) The hash of the referenced, previous transaction
      "vout" : n,                (numeric) The index of the output to spent and used as input
      "scriptSig" : "hex",       (string) The hex-encoded signature script
      "sequence" : n,            (numeric) Script sequence number
      "error" : "text"           (string) Verification or signing error related to the input

> bitcoin-cli signrawtransaction "myhex"
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "signrawtransaction", "params": ["myhex"] }' -H 'content-type: text/plain;'