Tag: validation

13 What is SPV mining, and how did it (inadvertently) cause the fork after BIP66 was activated? 2015-07-06T18:57:16.187

13 Schnorr's batch validation 2018-11-04T19:55:09.757

10 Did the introduction of VerifyScript cause a backwards incompatible change to consensus? 2019-01-19T14:39:29.360

10 When Schnorr signatures are part of Bitcoin will it be possible validate each block with only one signature validation? 2019-03-10T21:29:18.367

8 How long does block validation take? 2016-12-23T22:15:16.730

8 How to prevent a miner from stealing another miner's block? 2017-02-10T02:09:42.590

6 how to evaluate if this (or any) bitcoin public key / private key combination is valid? 2017-10-19T17:54:10.017

6 How does copying main stack prevent malformed unlocking scripts vulnerabilities? 2018-10-20T05:30:55.463

5 Would moving a transaction from an old block to a new one allow more pruning? 2016-05-22T21:25:42.187

5 How are blocks verified? 2018-10-28T20:39:24.640

5 Schnorr batch validation speed statistics 2018-11-22T15:37:28.500

4 which transactions does bitcoind validate? 2015-06-25T06:26:16.110

4 Sender, nodes or miners? Who validates transactions? 2017-12-01T12:00:23.837

4 How does Proof of Stake prevents dishonest behaviour compared to PoW? 2018-02-14T18:35:25.003

3 Can transaction validation really be free? 2015-09-27T03:25:25.573

3 Validate a payment using bitcoind and json rpc 2015-12-17T16:25:35.993

3 How do you validate a bitcoin address using bitcoinjs library in javascript? 2017-04-12T21:38:59.443

3 What forces transactions to be visible to all miners? 2017-06-02T00:54:53.630

3 A couple of questions on Schnorr sig 2018-10-03T08:06:35.073

3 Why every node needs to validate a transaction in Bitcoin 2019-02-17T18:10:04.670

3 How to tell if a transaction is valid? 2019-10-20T16:26:44.283

3 Is it theoretically possible to have an inverted nLockTime? 2020-09-07T22:10:47.130

3 How are transactions verified with only the Bitcoin address, not the public key? 2021-02-15T21:59:24.860

2 How to validate bitcoin address 2013-10-15T13:51:06.060

2 Can a transaction be in two blocks? 2013-12-13T08:46:29.060

2 Would a normalized, hashed, protected chainstate reduce miner storage costs? 2015-07-25T23:21:50.087

2 What is the duration of a ban? 2017-05-30T16:48:01.840

2 What if the miners allowed invalid transactions, and other nodes did validation? 2017-08-05T19:48:04.063

2 Block #338819 deemed invalid by v0.15.1 2018-02-02T16:47:09.700

2 What prevents anyone from spending utxos from a native segwit address? 2018-03-29T01:59:20.923

2 What’s the difference between a validation by nodes and a verification by miners? 2018-05-28T09:49:45.720

2 How to Validate Signature with SigScript length 8b? 2019-10-22T05:22:21.237

2 block verification cost 2020-02-09T09:13:00.640

2 Does Bitcoin Core validate signatures by default? 2020-08-26T10:31:41.523

1 Selfish Mining: stale or orphan? 2015-07-15T06:39:57.807

1 Validate chain from `valid-headers` to `valid-fork` 2015-09-03T01:07:25.897

1 Easy way to accept bitcoin payments without external service 2016-11-28T10:01:08.693

1 Which sender is banned in case of nvalid transactions or blocks? 2017-05-30T09:06:38.367

1 Possibility of contructing a valid transaction without knowning private key 2017-08-28T00:30:03.303

1 Blockchain and Transaction Validation 2017-11-05T16:05:24.777

1 What would a full node do if it finds an error? 2017-11-12T17:59:05.107

1 Script to periodically update assumevalid block in bitcoin core configuration, good idea? 2018-01-06T06:06:58.760

1 How can one verify the address you are sending BTC to 2018-01-08T01:26:48.220

1 Does a node validates a transaction that comes with a block if it's already in its mempool? 2018-03-23T10:16:39.477

1 How can i create an Anyone can spend output? 2018-03-27T00:53:12.207

1 Is it possible to append new blocks to a block of arbitrary age? 2018-06-18T14:22:12.260

1 When are blocks validated? 2018-07-07T14:10:49.017

1 How nodes verify if the hash on a P2SH output is from a valid script? 2018-07-10T20:15:03.000

1 What is the correct use of the term "validating"? 2018-07-20T06:57:54.977

1 Where in the source code are transaction validation checks implemented? 2018-10-10T12:48:06.130

1 What would happen if I publish a modified version of an earlier block? Would it be rejected immediately by peer nodes? 2018-10-20T05:17:25.110

1 How long does it take to validate a full block? 2018-10-30T16:02:25.903

1 Block Validation: who does it? How much it costs? And is it present in all protocols? 2018-11-10T11:22:12.140

1 Verification of untypical scriptSig 2018-12-14T10:29:44.080

1 How is a bitcoin transaction validated? 2019-03-27T04:06:08.177

1 How miner makes sure that a transaction he picked up from mempool is actually valid? 2019-04-09T03:00:14.030

1 Besides transaction validation, are there any other uses of the Script language in Bitcoin 2019-04-21T21:48:51.193

1 How 1 cpu 1 vote works? 2019-05-08T17:20:24.157

1 Is there a way to determine the difference between a BTC prefix 3 address and a LTC prefix 3 address? 2019-06-13T17:14:22.337

1 Regarding block validation in blockchain 2019-08-24T15:43:56.790

1 How exactly does the network know if the miner has put forth a valid proof of work? 2019-08-24T22:33:00.990

1 When exactly do the transactions get validated? 2019-11-27T16:09:53.963

1 Does each block contain all the Bitcoin transactions for that time period? 2020-02-06T21:55:57.613

1 What kind of bug does bitcoin core possess that have to be replicated 2020-04-08T11:40:43.460

1 How does the network verify previous transactions when transferring BTC between two users? 2020-05-04T22:58:10.417

1 How to verify if a transaction is signed correctly? 2020-07-01T01:53:45.283

1 What valid transactions are not broadcastable? 2020-07-13T01:42:20.790

0 How to send an invalid transaction for testing purposes? 2015-07-24T03:19:56.517

0 Must block contents be stored with the proof that they haven't been changed? 2015-08-09T20:59:34.783

0 separating proof of work from mining possible? 2016-11-08T04:53:36.857

0 How to make sure, Bitcoin private key and bitcoin address generator tools are generating valid key pair? 2017-08-18T15:21:13.553

0 Block validation files? 2017-10-26T15:18:28.287

0 Validation of New Blocks 2017-11-23T15:30:08.757

0 Difficulty to Hash Validation Correlation 2017-11-30T04:42:22.967

0 validation of a block with false transactions 2017-12-07T22:05:41.637

0 Why is it hard to fake proof of work? 2017-12-19T06:08:33.707

0 In a chain split scenario (not soft fork), a miner has to confirm transactions from both chains? 2018-01-12T15:16:03.460

0 How are transactions verified by nodes other than the initial receiver? 2018-01-31T15:27:33.433

0 Cryptocurrency exchange needs more info than any bank or brokerage firm? 2018-02-14T17:44:59.067

0 How do offchain transactions get validated/confirmed whilst using Lightning network? 2018-02-21T13:15:24.780

0 Is every bitcoin transaction (eventualy) validated by every miner? 2018-03-08T03:29:18.603

0 16: mandatory-script-verify-flag-failed (Script evaluated without error but finished with a false/empty top stack element), code=-26) 2018-03-14T02:29:56.867

0 How can you send a transaction directly to the memory pool? 2018-03-21T17:37:01.347

0 How to create a valid unsigned transaction 2018-03-21T19:16:58.170

0 Create a transaction which sends bitcoin to the address it's being sent from? 2018-03-22T00:37:53.933

0 Why does bitcoin use signatures to verify transactions? 2018-03-22T20:43:43.443

0 Verifying ownership of utxos 2018-03-22T23:28:41.743

0 Can op codes be used instead of signatures? 2018-03-24T20:09:38.493

0 Do miners check whether a transaction is segwit or non segwit? 2018-03-28T01:28:58.970

0 Can you create a valid p2sh transaction with the redeem script in the scriptsig alone? 2018-03-30T23:51:36.400

0 Validation methods beside POW etc 2018-04-18T13:31:22.910

0 How does the p2p network monitor the validity of a transaction? 2018-06-28T17:03:56.657

0 Link to Algorithmic behind signatures verification 2018-07-01T12:30:05.323

0 Who set the rules for validating a block in blockchain? 2018-07-26T09:03:25.900

0 Reject or refuse to relay a valid transaction 2018-08-10T10:24:42.557

0 verifying my modifications to bitcoind w/o broadcasting anything 2018-08-14T17:50:12.173

0 Consensus roles for op_return 2018-09-02T07:52:56.440

0 Tendermint consensus: Are validators "known" and "pre-selected"? 2018-09-24T13:23:42.550

0 Ttransaction validation in the bitcoin blockchain 2018-10-25T19:57:08.473