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Questions tagged [signature]

This tag should be used for questions regarding digital signatures. A digital signature proves that the owner of a private key produced or endorsed a given message. These are used in transactions to prove that an output can be spent in a transaction.

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511 views

Error: mandatory-script-verify-flag-failed

I have created a raw transaction from myElectrum wallet, but when I try to broadcast it I get this error: mandatory-script-verify-flag-failed Why is this happening? The transaction is below: ...
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122 views

What Hash need for Signature verification? [duplicate]

When miners verifies a transaction, they make some calculations to check its Signature by using some Hash. What Hash is used for Sig verification in Bitcoin Core?
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424 views

how make own gitian-sigs end detached sigs?

How make own gitian-sigs end detached-sigs. I cannot find any useful info. Where i try see it's always start with "you already have .assert and .sig . but how they create ?
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151 views

Signature on Bitcoin. What am I doing wrong?

I refer to this site How to redeem a basic Tx? (signing stage) Now we double-SHA256 hash this entire structure, which yields the hash 9302bda273a887cb40c13e02a50b4071a31fd3aae3ae04021b0b843dd61ad18e ...
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328 views

sign and verify a message in Bitcoin Core 0.13.1 (OSX)?

as a follow up to here: Verifying a bitcoin trx on the Unix cmd line with OpenSSL? and here: How does the ECDSA verification algorithm work during transaction? I use the pizza trx, and verify at ...
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133 views

partial signature (of P2SH) in Bitcore. howto?

Using pybitcointools, it is easy get partial signatures of a p2sh using the multisign function. Then, these can be communicated around to the several controllers of the p2sh address. Using bitcore, I ...
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1answer
102 views

How to get the raw signature data of a transaction?

With the use of segwit, signature data is no longer part of transaction body and thus can’t be retrieved from block explorers. So is there a Bitcoin rpc method in order to get it directly without ...
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2answers
137 views

Can Bitcoin Core be used to create a raw transaction for CLAM altcoin?

Clam is an altcoin that issued that altcoin to the owner of the private key of each and every Bitcoin address that had funds (0.0001 or more) on May 12, 2014. I don't want to install the Clam client. ...

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