Quote
Why inCounter=1 is not equal witCount=2? How use witData having witLen length?
Code:
5ca369bcf633ffdaef635b0778baf2543c191f565436504738a06f8c29dcb319 :
version : 01000000
ptr : 8
segwit_tx : 1
swmarker : 00
swflag : 01
ptr : 12
num_inputs : 1
ptr : 14
txid_index[0] : D10B8D4F7BC14F36471BD1CD9346AEF399B48952B668F879857A4F61AA05075B01000000
ptr : 86
in_script_size[0] : 17
ptr : 88
in_script[0] : 1600146E5A9E498616FBF8AE1EFF60C58FCCDE69B58673
ptr : 134
in_seq[0] : FFFFFFFF
ptr : 142
num_outputs : 1
ptr : 144
out_amount : E069F90200000000
ptr : 160
out_script_size[0] : 17
ptr : 162
out_script[0] : A9148145BD99ED2B6A539BEADB478717CB43A3F9102287
ptr : 208
num_wits[0] : 2
ptr : 210
wit_size : 48
ptr : 212
tmpwits[0] : 483045022100883892D8D95E33D2F3968702653E7005786F35D6CD2AB5AD25729A87BFA41BFE02202BAC1AD96DA21FEDF7CE0290E85BB34D7553E75766BBC2F8187B6CAE25ED863601
ptr : 356
wit_size : 21
ptr : 358
tmpwits[1] : 2102A7082D3C292129FD18D0F49B7614657E1613FCCC2BDEBE40AA8B828C01A69B66
ptr : 424
in_wits[0] : 483045022100883892D8D95E33D2F3968702653E7005786F35D6CD2AB5AD25729A87BFA41BFE02202BAC1AD96DA21FEDF7CE0290E85BB34D7553E75766BBC2F8187B6CAE25ED863601 2102A7082D3C292129FD18D0F49B7614657E1613FCCC2BDEBE40AA8B828C01A69B66
nlocktime : 00000000
That "witness count" is just how many items are in this current witness' stack.
For this witness there is the signature and the pubkey, so the witness count is "2".
This entire witness with its two items is used by the first input input in the transaction. You can see the transaction is redeeming a p2sh(p2wpkh).
--------------------
Quote
Why I must insert one byte before transaction 44?
Code:
118c83b2c7aa4b500e0c0333dbfef990ca6c324004d68f68acb10ddada918474 :
version : 01000000
ptr : 8
segwit_tx : 1
swmarker : 00
swflag : 01
ptr : 12
num_inputs : 2
ptr : 14
txid_index[0] : 0D668D9CEE347DD5256BEAC4D3A6E6CB6AA6EA1AF197D0C3EC08359223139E1B00000000
ptr : 86
in_script_size[0] : 17
ptr : 88
in_script[0] : 1600143F0402FCB8BEEF28A89BE7E94794EC66D469FDB6
ptr : 134
in_seq[0] : FEFFFFFF
ptr : 142
txid_index[1] : 0D668D9CEE347DD5256BEAC4D3A6E6CB6AA6EA1AF197D0C3EC08359223139E1B01000000
ptr : 214
in_script_size[1] : 6B
ptr : 216
in_script[1] : 483045022100EACEEE00202693D7D54AA84BD8B216F62B1F041B16E08E0352EB1ED50F1EF10102201A90288F667F975CC8D524431D61BD8B15F5D189610D31A9BD12EE37C0674F06012103C4561CE27291B1730E5A429934F45FB4FF9B56E24B6E10E0D176F198FA029671
ptr : 430
in_seq[1] : FEFFFFFF
ptr : 438
num_outputs : 2
ptr : 440
out_amount : 506C980000000000
ptr : 456
out_script_size[0] : 19
ptr : 458
out_script[0] : 76A9140AF575373DAD17150D91B6A191A371B59E09D87F88AC
ptr : 508
out_amount : 001C4E0E00000000
ptr : 524
out_script_size[1] : 17
ptr : 526
out_script[1] : A91403572C975AEC5228C0E2982EF8A03B6830E0554F87
ptr : 572
num_wits[0] : 2
ptr : 574
wit_size : 48
ptr : 576
tmpwits[0] : 483045022100913D331B78A2C1A2EC0E2AF7A826181F26E15E0195CEF13F492D2E22B8DD9E2C02201F808621F9684574CBBD755933509F6BCE7536AA5C36DD4C57FD635E5485404901
ptr : 720
wit_size : 21
ptr : 722
tmpwits[1] : 2103E2728BDC007032F5B30C823F4A3CD9236EAB5E3A6F23C6AE6BE8BD63FF847922
ptr : 788
in_wits[0] : 483045022100913D331B78A2C1A2EC0E2AF7A826181F26E15E0195CEF13F492D2E22B8DD9E2C02201F808621F9684574CBBD755933509F6BCE7536AA5C36DD4C57FD635E5485404901 2103E2728BDC007032F5B30C823F4A3CD9236EAB5E3A6F23C6AE6BE8BD63FF847922
num_wits[1] : 0
ptr : 790
in_wits[1] :
nlocktime : 19510d00
In here the same thing happens with the first input. It also redeems a p2sh(p2wpkh) so we see the normal witness stack of two items, the signature and the pubkey.
The second input redeems a non-segwit scriptpubkey. By bip141 rules, when a segwit input and a non segwit input are redeemed in the same transaction, the non-segwit input will have an empty witness. That is the single 0x00 byte that tells you "this is a witness stack of 0 items"