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Questions tagged [blockcypher]

The tag has no usage guidance.

1
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1answer
33 views

Negative number of confirmations for a testnet transaction on blockexplorer

I am curious about the test transaction f72f59a32c1bac47ec87bc3678ec44e98eece5e235d29d79cd1f5461ccc5bf38. Depending on which site I view this transaction, the number of confirmations is positive or ...
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0answers
19 views

NBitcoin + QBitNinja + Testnet

I am busy building a solution ala. wallet that uses NBitcoin based on the Programming the Blockchain with C#. One of the issues that I am running into is that the calls to do a balance check via ...
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0answers
24 views

Error when sending signed transaction with blockcypher api

Im using bitcoinj library and blockcypher api for creating wallet and transactions on Bitcoin Testnet. I get this error when sending signed transaction. "error": "Error validating generated ...
0
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1answer
133 views

How do you sign data with a private key? [javascript]

Using BlockCypher’s signing tool (link), I can sign the following data: 05de69f5d37f41340eed3230f03d2394dde5e497738a76f027b7d962a0cbdf39 with the private key: ...
1
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1answer
82 views

Why this transaction is invalid?

I issued this transaction on testnet (for a homework later solved with another script). python-bitcoinlib validates the transaction but when i submit it to blockcypher it gets rejected with error: {"...
1
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1answer
30 views

Is it secure to collect common public addresses under a wallet using BlockCypher Wallet API

I am working on an exchange platform with users having separate pair of public and private keys using blockcypher api. I encountered Blockcypher Wallet API, and it seems its a pleasant way of ...
1
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1answer
364 views

how to validate testnet and mainnet bitcoin address via online api or offline for Android App?

I would like to know web api provider to validate Mainnet & Testet3 Bitcoin Address. How to validate a Bitcoin address is a real one? Validate bitcoin address from android application Gone ...
1
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2answers
226 views

How to display a list of incoming bitcoin Transaction history in my own wallet?

I have gone through various references including How to get a history of incoming and outgoing transactions for a certain address? Fetch list of transaction where i have received the bitcoin? I am ...
1
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2answers
48 views

How to confirm that given bitcoin address is generated by given public key?

I have 10s of private and public keys associated with 10s of different addresses. Now I have a test-net btc address "mfoxBS2TpoiUWrEV3sZopoEB6Pi2d7TE9N". What operations can I perform to find the ...
0
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1answer
20 views

bitcoin transfer without creating wallet

My question is about transferring bitcoin between two addresses without having a wallet. Here is my idea of transferring bitcoins in following way: Idea: I have my own Android Application. I am ...
0
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1answer
47 views

What could this Python Assertion error mean?

When I run the code below, sending a BTC transaction to the blockchain (using blockcypher api) I get an Assertion Error. I am not sure what an Assertion error means. The code: Btw the address had ...
0
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2answers
91 views

What does the “relayed_by” field in the BlockCypher API represent? Is there a way to gather geographical data of transactions?

The transaction data returned by the BlockCypher's API includes the "relayed_by" field, which the documentation describes as "Address of the peer that sent us this transaction". Is this the IP address ...
0
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1answer
23 views

Can can I identify my deposits to a wallet on a BTC (or LTC) blockchain (using the blockcypher api)

I'm trying to reconcile my deposits to a wallet (happens to be LTC) on an exchange account with the data on the blockchain. I was using the logic: if tx_input_n is -1 then transaction is a ...
0
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2answers
143 views

blockcypher shows much higher amount transacted

I sent bitcoin from my localbitcoins.com account to my coinbase.com account. It showed up as 0.00147276 BTC in coinbase but the transaction shows as 0.953 BTC on blockcypher: Is there a way for me to ...
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0answers
336 views

BitcoinJs-lib Multisig Multi-input Raw Transaction Creation

I can not construct this raw transaction correctly: var keyPairs = [ 'cTFWphyQSKUp9RNEftrXgbgbiTg49wz4wfhrAzmutigyjxUw4DqD', 'cQtNm3feFWK5hzR78wUtAowA8pqYDVJsdSVnm4b8qDExEmMvfCNs', '...
1
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0answers
53 views

How to derive addresses based on BIP44 in BlockCypher?

I would like precise how to derive addresses from BTC HD wallet based on BIP44 (m/44’/0’/0’)? During HD wallet creation I have provided xpub of my m/44’/0’/0’, but there is no option to specify root ...
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3answers
836 views

Bitcoin Cash API similar to BlockCypher

Is there any Bitcoin Cash API that has similar features as BlockCypher? Important is the ability to create new addresses and create transactions.
0
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1answer
44 views

Bitcoin wallet website

I am new in bitcoin. I am developing a PHP website to let users build their wallet on my website. I want to give every user a wallet. I do not want to give users private keys. I keep private keys, so ...
0
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1answer
279 views

Cannot broadcast bitcoin testnet transaction

Error validating transaction: Error running script for input 0 referencing 9a2cd138476c598cced94a6c8bd6c8b2c6a268a763700d654324614aff799ceb at 0: Script was NOT verified successfully.. My transaction ...