2 Bitcoins unconfirmed even after double spend 2017-02-23T10:22:43.047

2 How confirm my own doublespend transaction got confirmed 2017-04-03T09:03:31.630

2 blockchain.info says my tx is double spend. Which tx use the same utxo? 2017-05-17T02:57:12.527

2 Double spending on testnet or regtest? 2017-08-27T16:51:03.743

2 Is in-person double-spending attacks negligible on bitcoin payments? 2017-10-10T20:15:06.133

2 My blockchain.info wallet was hacked. How can I create a double send to foil the attacker? 2017-12-08T06:46:16.873

2 Complete Tech Spec 2017-12-17T10:55:19.700

2 Are bitcoins (or fractions of bitcoins) labeled with IDs? 2018-08-30T14:49:05.890

2 Why isn't the block hash used to calculate accumulated work? 2018-12-12T21:29:11.130

2 Proof of Stake - double spending 2019-04-23T17:42:35.247

2 Who first defined/coined The Double-Spending Problem? 2019-05-08T06:53:18.153

2 Does proof-of-work contribute directly to prevent double-spending? 2019-08-04T02:36:20.040

2 How to prevent double spending Bitcoins? 2019-08-28T12:03:02.270

2 Double Spend Behavior on First Network Propagation 2019-10-02T10:20:40.593

2 What happens if I spend a double spend? 2019-10-27T14:19:17.020

1 Without being continuously connected to the network, how can I protect from Double Spend attacks? 2012-09-16T23:39:18.163

1 In a given contract, should the "LockTime" timestamp include an extra hour for confirmations to prevent a double spend? 2012-12-20T19:04:08.800

1 Can double-spends be automated by malicious custom bitcoin clients? 2013-04-04T10:06:14.930

1 Sending from Bitcoin-Qt to Coinbase 2013-09-29T15:18:41.817

1 Inbound connection merchant risk 2013-12-21T16:00:13.110

1 Double spend attempts examples on testnet? 2014-02-10T17:13:42.150

1 How big is the chance of double spending for 0, 1, 2, 3, 4, 5 and 6 confirmations? 2014-03-22T18:37:20.313

1 Can a double spend attack be obfuscated by mimicking the transactions seen before the fork? 2014-04-13T21:40:00.947

1 Curious about a network-based double-spending attack 2014-05-08T16:09:57.910

1 Can someone explain double spending to me? 2014-05-15T17:01:32.807

1 How much hashpower is needed to double-spend? Is >50% a minimum? 2014-05-27T15:06:58.350

1 Warning about possible double spend at blockchain.info 2014-08-01T16:17:20.673

1 Why are double-spends bad? 2014-10-02T18:46:06.237

1 What happens if a TX was a double spend? 2014-12-15T19:02:50.390

1 Using Transaction with multiple outputs 2015-02-18T09:23:54.743

1 How would this double spend attack be prevented? 2015-05-13T04:32:37.930

1 Where is coinbase transaction after a hacker successfully performs >50% attack? 2015-06-08T14:34:12.433

1 How do I detect a double-spend in real-time, like Bitpay? 2015-08-15T03:17:56.823

1 What are the chances of someone coming up with a new and simple/out-of-the-box solution for the double-spending problem? 2015-09-04T08:09:42.957

1 What is the risk of waiting for just one confirmation to validate a transaction, assuming the counterparty is not a miner? 2015-12-04T20:58:29.817

1 Why can't a transaction be redirected after it is signed? 2015-12-13T22:40:54.623

1 How to track and handle double-spend attacks? 2016-01-18T11:04:43.153

1 If a double spend is executed, what happens to the original transaction? 2017-01-12T09:03:49.407

1 Negative Bitcoin Balance 2017-05-21T07:06:18.020

1 Detecting unconfirmed double spends using bitcoind 2017-06-05T06:19:24.200

1 Is double spending with electrum still possible? 2017-06-07T21:03:09.377

1 How would a centralized block chain work? 2017-06-10T14:24:03.080

1 Why does only the earliest transaction matter for double spending? 2017-06-11T09:52:13.480

1 How does Bitcoin protect against doublespends? 2017-07-12T23:44:36.933

1 Mining two block at the same time 2017-07-18T05:30:00.730

1 How spending same coins both at BCC and BTC blockchains prevented? 2017-08-02T12:55:21.973

1 Misledgering possibility for double spending attack 2017-08-08T22:55:35.583

1 100% double spending attack probability 2017-09-27T17:34:33.560

1 Race Attack vs. Double-Spending Attack: are they same? 2017-10-01T12:26:00.553

1 What is the average time for an honest network to find a block when its hash rate is p? 2017-10-05T14:53:07.463

1 Bitcoin Paper: Why do we need the probability of catching up in double spend attack? 2017-10-06T11:18:28.703

1 How does the network know the legitimate chain in a double-spend attempt? 2017-10-30T14:01:46.683

1 Does the entire blockchain have to be recomputed to validate a transaction? 2017-12-15T19:41:32.993

1 In case of a double spend (after double spend and prior getting resolved) what is actual account balance? 2018-01-29T19:45:36.373

1 Is "fee higher than block reward" attack possible? 2018-03-11T19:17:28.153

1 Can low-cost purchases be accepted safely with no confirmations? 2018-03-18T04:31:15.000

1 Wallet's role in a double spend attack 2018-03-26T17:08:36.950

1 What can make an unconfirmed transaction (0-conf) an invalid one other than Double-spend? 2018-05-23T13:05:25.697

1 What happens to rejected transactions ( i.e double spend or invalid transactions)? 2018-06-18T19:16:29.473

1 What happens if full nodes don't check for double spends or deliberately lets a double spend TX pass and then this full node relays the transaction? 2018-06-25T18:51:09.177

1 Security via Proof - of - Work 2018-06-27T00:24:58.110

1 What does a double spend (CVE-2018-17144) look like if I gettransaction it? 2018-10-17T17:33:40.213

1 Sybil attack with IOTA? 2018-11-21T12:39:39.277

1 Why "double spent" can only happen if attacker controls 51% (or more) of the network compute power? 2018-11-22T22:49:58.280

1 double spend attack: Is this actually true for the more time progress the higher the probability of success for attacker 2018-11-30T09:41:51.180

1 Can a malicious Internet Service provider launch a double spend attack? 2019-06-05T15:13:24.267

1 Bitcoin, BTC.com and monitoring double-spend attempts 2019-07-27T17:09:13.363

0 Could this stop double-spending? 2014-01-10T12:19:51.513

0 Double spend in transaction with multiple inputs 2014-03-07T19:05:17.190

0 How to recover from a double spending attack? 2014-11-22T22:10:40.490

0 How to detect a race attack and re-spend the already-spent outputs? 2014-11-25T03:01:22.663

0 How do you inspect a transaction? 2014-12-09T01:56:27.130

0 Bitcoins stuck - No double spend possible 2015-10-11T09:31:39.010

0 Details in double spend detection 2015-12-29T06:35:04.560

0 Paranoid Merchants on double spending 2016-01-12T17:15:47.813

0 Restrict the Bitcoin usage only during a particular period 2016-05-02T23:07:09.680

0 How to pratically doublespend bitcoins? 2016-05-18T12:31:26.767

0 How long should I wait to consider that the transation is "definitely" confirmed? 2016-07-10T19:01:33.157

0 Detection of double spend in Bitcoin for aged transactions 2016-09-02T06:53:35.860

0 Bitcoin Wallet: Will 2 payments within 10 minutes cause double spending 2017-01-31T15:33:51.990

0 Double spend question during fork 2017-02-27T13:42:16.903

0 Unconfirmed bitcoins 258: txn-mempool-conflict 2017-03-09T16:40:45.720

0 How do nodes behave in light of a doublespend? 2017-06-22T00:14:27.047

0 How would one relay a raw tx double spend to a node that accepts it? 2017-06-26T00:59:17.363

0 Application of proof of work in bitcoin 2017-07-26T20:27:29.030

0 What happens if I spend a bitcoin that has 1 confirmation? 2017-08-09T02:12:32.807

0 do isolated blocks create forks in block chain? (with forks I mean branches that are no longer valid) If yes then how does the node redeem itself? 2017-10-02T13:57:49.357

0 Can one node receive two transactions from the same user (doublespend)? 2017-10-22T09:13:07.263

0 double spend problem and trust 2017-11-11T18:24:29.997

0 After being officially canceled, SegWit2x is live. Will transaction replaying be massive ? If yes what does this means? 2017-11-17T20:24:21.643

0 Is this considered double spend? 2017-11-19T06:49:56.820

0 Unconfirmed transaction / double spend warning 2017-11-29T05:52:13.657

0 Can I double spend this transaction? 2017-12-18T12:36:12.767

0 Why is CPFP (Child pay for parent) immune to double spend? 2017-12-23T14:09:42.857

0 Ripple's validation of transactions / Ripple white paper? 2017-12-26T10:57:44.327

0 From multibit to electrum : low fee and unconfirmed parent 2018-01-02T16:34:19.557

0 Bitcoin Transaction Stuck, Attempt to double spend with higher fees 2018-01-03T08:34:06.613

0 Can I save stuck bitcoins by creating a completely new transaction? 2018-01-11T14:57:22.463

0 What are the mechanics of verifying that an output transaction is not spent? 2018-01-15T10:28:26.697