Right here is how issues might be carried out backwards. Sadly, the bitcoin-explorer (bx) confirm mechanism works a bit of in another way however considerably much like what you have been anticipating. Step 4 under would possibly present particulars that is likely to be helpful for what you’re doing. Step 5 under completes the validation offline.
1. Right here is the straightforward solution to compute transaction IDs from the uncooked hexadecimal transactions.
% echo 01000000018a8a9f938c251be60da2711c6bf168c66213fae8e26251fcec47f9a41d0e71e3020000006b483045022100ad775acd2d0b14904771c28754e0e510ecd8af842732c5c15a0899d1e28ed42902204efb34805a958174f6a6273444cde7f97cf38cec0d96d17c7921490f58e6379d012103c0f217eb4428c61d47d8aa084a28c3d3d26f43b6569283f08fec5451a5fc8c98ffffffff0200803801000000001976a914d2c6b9c7f146ea4039e6ae67904eb94d479b7ed688ac06d79e460e0000001976a914b85f8cde95fe9b30872e49d5b961a4af5d07518688ac00000000 | bx bitcoin256
9b4912711de5e258a74a529227f43647bc3b2304212fb508c5f8e910d5986270
2. Listed below are two means (1st is offline, 2nd is on-line) to extract the Endorsement/Signature and related Public Key used for the TX_ID 9b4912711de5e258a74a529227f43647bc3b2304212fb508c5f8e910d5986270 enter:
% echo 01000000018a8a9f938c251be60da2711c6bf168c66213fae8e26251fcec47f9a41d0e71e3020000006b483045022100ad775acd2d0b14904771c28754e0e510ecd8af842732c5c15a0899d1e28ed42902204efb34805a958174f6a6273444cde7f97cf38cec0d96d17c7921490f58e6379d012103c0f217eb4428c61d47d8aa084a28c3d3d26f43b6569283f08fec5451a5fc8c98ffffffff0200803801000000001976a914d2c6b9c7f146ea4039e6ae67904eb94d479b7ed688ac06d79e460e0000001976a914b85f8cde95fe9b30872e49d5b961a4af5d07518688ac00000000 | bx tx-decode
or
% bx fetch-tx -c ~/bitcoin-explorer/bx-mainnet-remote.cfg 9b4912711de5e258a74a529227f43647bc3b2304212fb508c5f8e910d5986270
that each yield:
transaction
{
hash 9b4912711de5e258a74a529227f43647bc3b2304212fb508c5f8e910d5986270
inputs
{
enter
{
address_hash a0d48c129cfde8f124a16f4d69bc47fd7fb5780d
previous_output
{
hash e3710e1da4f947ecfc5162e2e8fa1362c668f16b1c71a20de61b258c939f8a8a
index 2
}
script "[3045022100ad775acd2d0b14904771c28754e0e510ecd8af842732c5c15a0899d1e28ed42902204efb34805a958174f6a6273444cde7f97cf38cec0d96d17c7921490f58e6379d01] [03c0f217eb4428c61d47d8aa084a28c3d3d26f43b6569283f08fec5451a5fc8c98]"
sequence 4294967295
}
}
lock_time 0
outputs
{
output
{
address_hash d2c6b9c7f146ea4039e6ae67904eb94d479b7ed6
script "dup hash160 [d2c6b9c7f146ea4039e6ae67904eb94d479b7ed6] equalverify checksig"
worth 20480000
}
output
{
address_hash b85f8cde95fe9b30872e49d5b961a4af5d075186
script "dup hash160 [b85f8cde95fe9b30872e49d5b961a4af5d075186] equalverify checksig"
worth 61314356998
}
}
model 1
}
Distinguished Encoding Guidelines (DER) formatted Signature = 3045022100ad775acd2d0b14904771c28754e0e510ecd8af842732c5c15a0899d1e28ed42902204efb34805a958174f6a6273444cde7f97cf38cec0d96d17c7921490f58e6379d01
R =
% echo 3045022100ad775acd2d0b14904771c28754e0e510ecd8af842732c5c15a0899d1e28ed42902204efb34805a958174f6a6273444cde7f97cf38cec0d96d17c7921490f58e6379d01 | lower -c 9-74
00ad775acd2d0b14904771c28754e0e510ecd8af842732c5c15a0899d1e28ed429
S =
% echo 3045022100ad775acd2d0b14904771c28754e0e510ecd8af842732c5c15a0899d1e28ed42902204efb34805a958174f6a6273444cde7f97cf38cec0d96d17c7921490f58e6379d01 | lower -c 79-142
4efb34805a958174f6a6273444cde7f97cf38cec0d96d17c7921490f58e6379d
Pubkey = 03c0f217eb4428c61d47d8aa084a28c3d3d26f43b6569283f08fec5451a5fc8c98
3. The third output of TXID e3710e1da4f947ecfc5162e2e8fa1362c668f16b1c71a20de61b258c939f8a8a incorporates the unique enter script that was signed, requires an extra on-line question:
% bx fetch-tx -c ~/bitcoin-explorer/bx-mainnet-remote.cfg e3710e1da4f947ecfc5162e2e8fa1362c668f16b1c71a20de61b258c939f8a8a
transaction
{
hash e3710e1da4f947ecfc5162e2e8fa1362c668f16b1c71a20de61b258c939f8a8a
inputs
{
enter
{
address_hash 3480cd7a92d09974aacc473512ca80a686249498
previous_output
{
hash 4b7b945088ad38de258490d02bdca724548818e1ad184d0e00a2d4d1e82229c8
index 0
}
script "[3046022100da2122351174582ca4f8b9cfc2567bd2c95c3f30be13ce0f20422ba6c2d55806022100af211740671144cc8cbce04e8028e60eb1028af661a8eba77430e4a8615925da01] [02416953ece00bbc3a1ebca108c8961abae0bcc613ecf838bb0e5799202fbe7ae4]"
sequence 4294967295
}
}
lock_time 0
outputs
{
output
{
address_hash ead65b0c5d7abc0af467ae2f34ed1b84a6662fda
script "dup hash160 [ead65b0c5d7abc0af467ae2f34ed1b84a6662fda] equalverify checksig"
worth 12557630
}
output
{
address_hash 59cca2f8c91a9784c6c38da5a10f00644238b527
script "dup hash160 [59cca2f8c91a9784c6c38da5a10f00644238b527] equalverify checksig"
worth 10100000
}
output
{
address_hash a0d48c129cfde8f124a16f4d69bc47fd7fb5780d
script "dup hash160 [a0d48c129cfde8f124a16f4d69bc47fd7fb5780d] equalverify checksig"
worth 61334886998
}
}
model 1
}
ASCII encoded script = "dup hash160 [a0d48c129cfde8f124a16f4d69bc47fd7fb5780d] equalverify checksig"
and computing the corresponding P2PKH handle:
% echo a0d48c129cfde8f124a16f4d69bc47fd7fb5780d | bx address-encode -v 0
1FfPjjFG1uoA62yiTsje8biYYvEhf8puQP
4. For self consciousness, compute Hex encoded script and related sha256 worth:
% echo “dup hash160 [a0d48c129cfde8f124a16f4d69bc47fd7fb5780d] equalverify checksig” | bx script-encode
76a914a0d48c129cfde8f124a16f4d69bc47fd7fb5780d88ac
% echo 76a914a0d48c129cfde8f124a16f4d69bc47fd7fb5780d88ac | bx sha256
0d9288118ccdc74e6ce85ced746aa48afbd30eb70f58e4ce009a78dd96faf33d
5. Affirm signature is legitimate utilizing an offline command:
% echo 01000000018a8a9f938c251be60da2711c6bf168c66213fae8e26251fcec47f9a41d0e71e3020000006b483045022100ad775acd2d0b14904771c28754e0e510ecd8af842732c5c15a0899d1e28ed42902204efb34805a958174f6a6273444cde7f97cf38cec0d96d17c7921490f58e6379d012103c0f217eb4428c61d47d8aa084a28c3d3d26f43b6569283f08fec5451a5fc8c98ffffffff0200803801000000001976a914d2c6b9c7f146ea4039e6ae67904eb94d479b7ed688ac06d79e460e0000001976a914b85f8cde95fe9b30872e49d5b961a4af5d07518688ac00000000 | bx input-validate -i 0 03c0f217eb4428c61d47d8aa084a28c3d3d26f43b6569283f08fec5451a5fc8c98 “dup hash160 [a0d48c129cfde8f124a16f4d69bc47fd7fb5780d] equalverify checksig” 3045022100ad775acd2d0b14904771c28754e0e510ecd8af842732c5c15a0899d1e28ed42902204efb34805a958174f6a6273444cde7f97cf38cec0d96d17c7921490f58e6379d01
The endorsement is legitimate.