Under block explorers you can also use a much more direct bitcoin block explorer like https://mempool.space.
So for the transaction https://mempool.space/tx/78c93aaa2f7fbcf08c528a0dcb691393e50446d71eef30ac5baa0183df33a5b9 on the right side of Inputs and outputs, click on details and you will be able to see information members have already discussed above. The explorer also makes easier by labeling transactions that are multisig for people who are not so technical.
Topic: With block explorer and tx hash, can I know which transaction is multi-signed (Read 167 times)
November 16, 2020, 06:13:13 PM
November 15, 2020, 11:56:15 PM
What are meanings of 4 parts?
Are first 3 parts for 3 co-signers?
Yes.Are first 3 parts for 3 co-signers?
Aside from the above, since you prefer blockexplorers:
The number of signatures you'll see will vary based from the required signatures, but you can only find that in the redeem script if you decrypt it,
the 2nd blockexplorer in my post has a human-readable format of the redeem script (p2sh redeem script) which shows "OP_PUSHNUM_3" at the start that indicates that it requires 3 signatures.
Those are the three (+/-) 71 bytes above the redeem script as I previously pointed.
November 15, 2020, 11:47:53 PM
What are meanings of 4 parts?
Are first 3 parts for 3 co-signers?
these are 4 items that are being pushed to the stack. since the output being spent is a P2SH output, the last item is a redeem script. and since the redeem script is OP_3 Are first 3 parts for 3 co-signers?
November 15, 2020, 11:13:03 PM
Thank you nc50lc. You are genius tech guru. 
With that transaction https://www.blockchain.com/btc/tx/78c93aaa2f7fbcf08c528a0dcb691393e50446d71eef30ac5baa0183df33a5b9, I see in SIGSCRIPT
Are first 3 parts for 3 co-signers?
With that transaction https://www.blockchain.com/btc/tx/78c93aaa2f7fbcf08c528a0dcb691393e50446d71eef30ac5baa0183df33a5b9, I see in SIGSCRIPT
Quote
30440220576976125dfb46f9d617f41b1d8f3c666ae1107610ad910a627cb3eaf18705fc0220219 e462d580eb66bf3d4d4d2fbd7f0164d340d23ddf90b82f858b2d3f0ce66bb01
3044022001c668407ebcfcea5c5eb406090c2946f6a91bd9881501e834924c2c4e8f588002207f1 2bdefe185390f28673b95da88b48222fb681c3b1f45083cde814a416e866a01
3045022100db620adb2687098ab9961780a76782ccb0241e75882218ff3be8bb99de09fe3502206 c929b3cb1c4f289619f9a6cde83caa41a33d2de230d74c11903b48a5fa3bc0301
532102002a57268073cbc5472d35d8f8fae2c52825241592f53e53ae516913d8c82bd121026c106 1b95ccfc52594c9b376382e2f0240a523b3b1dc5db6a9cdd9730a4a0c2121029e8c3ae6c0516df4 075089ab9475c9335985569ac0f3b9f1a4b0d946785937cd2102c6a7c72de9221cba7029f1b920a 86bb84997d9c91a2e4428b1397cba669dd3162103ba7c7d7b8d2379de450441445c30a638c55530 5cbe044abb88f10643d9621bf055ae
What are meanings of 4 parts?3044022001c668407ebcfcea5c5eb406090c2946f6a91bd9881501e834924c2c4e8f588002207f1 2bdefe185390f28673b95da88b48222fb681c3b1f45083cde814a416e866a01
3045022100db620adb2687098ab9961780a76782ccb0241e75882218ff3be8bb99de09fe3502206 c929b3cb1c4f289619f9a6cde83caa41a33d2de230d74c11903b48a5fa3bc0301
532102002a57268073cbc5472d35d8f8fae2c52825241592f53e53ae516913d8c82bd121026c106 1b95ccfc52594c9b376382e2f0240a523b3b1dc5db6a9cdd9730a4a0c2121029e8c3ae6c0516df4 075089ab9475c9335985569ac0f3b9f1a4b0d946785937cd2102c6a7c72de9221cba7029f1b920a 86bb84997d9c91a2e4428b1397cba669dd3162103ba7c7d7b8d2379de450441445c30a638c55530 5cbe044abb88f10643d9621bf055ae
Are first 3 parts for 3 co-signers?
November 15, 2020, 10:53:13 PM
Can I know which transaction is signed by multi people (co-signers) by tx hash and block exlorers?
Yes, refer to this topic: /index.php?topic=5279353.0For blockexplorers, you can use one that shows the "SigScript" or "ScriptSig".
Here's the same example used by ETFbitcoin in that thread: 78c93aaa2f7fbcf08c528a0dcb691393e50446d71eef30ac5baa0183df33a5b9
Scroll-down until you find "SigScript", a MultiSig transaction's input should have two or more signatures (the +/- 71byte string)
and the "Redeem Script" (the longer string) ends with "AE" OP_CHECKMULTISIG.
If it's OP_CHECKMULTISIGVERIFY, just refer to the signatures or use other blockexplorers.
Like this one: 78c93aaa2f7fbcf08c528a0dcb691393e50446d71eef30ac5baa0183df33a5b9
Scroll-down until you find "DETAILS +", expand it and you'll find more info there than the available on the latter.
November 15, 2020, 08:59:48 PM
I know the Multi-Signature wallet and this wallet will require multi signatures from a number of co-signers.
Can I know which transaction is signed by multi people (co-signers) by tx hash and block exlorers?
Thank you.
Multisignature
Raw transaction (Gavin Andresen)
Can I know which transaction is signed by multi people (co-signers) by tx hash and block exlorers?
Thank you.
Multisignature
Raw transaction (Gavin Andresen)
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