lbcd/blockchain
2021-12-30 09:50:16 -05:00
..
fullblocktests [lbry] docs: update docs for LBRY 2021-12-14 14:01:09 -08:00
indexers [lbry] docs: update docs for LBRY 2021-12-14 14:01:09 -08:00
testdata [lbry] test: fixed all current tests and delete three. 2021-12-14 14:00:59 -08:00
accept.go fix crash on unlock generate/invalidate loop 2021-12-15 08:27:58 -08:00
bench_test.go [lbry] test: fixed all current tests and delete three. 2021-12-14 14:00:59 -08:00
blockindex.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
chain.go [lbry] work around existing bug with block validation flags 2021-12-30 09:50:16 -05:00
chain_test.go [lbry] test: fixed all current tests and delete three. 2021-12-14 14:00:59 -08:00
chainio.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
chainio_test.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
chainquery.go [lbry] rpc: added getchaintips RPC 2021-12-14 14:00:59 -08:00
chainview.go blockchain: Refactor to use new chain view. 2017-08-23 23:43:37 -05:00
chainview_test.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
checkpoints.go switch to syndtr, golang 1.17.5 2021-12-24 15:15:13 -05:00
claimtrie.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
common_test.go [lbry] test: fixed all current tests and delete three. 2021-12-14 14:00:59 -08:00
compress.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
compress_test.go multi: Rework utxoset/view to use outpoints. 2018-05-27 03:07:41 -05:00
difficulty.go [lbry] test: fixed all current tests and delete three. 2021-12-14 14:00:59 -08:00
difficulty_test.go build: clean linter warnings 2020-05-13 08:58:39 -04:00
doc.go Relicense to the btcsuite developers. 2015-05-01 12:00:56 -05:00
error.go [lbry] blockchain, wire: add ClaimTrie to Block Header 2021-12-04 22:41:00 -08:00
error_test.go blockchain: Track block validation status in block index. 2017-10-23 04:33:15 -05:00
example_test.go [lbry] test: fixed all current tests and delete three. 2021-12-14 14:00:59 -08:00
fullblocks_test.go [lbry] test: fixed all current tests and delete three. 2021-12-14 14:00:59 -08:00
log.go all: Remove seelog logger. 2017-06-19 16:46:50 -04:00
mediantime.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
mediantime_test.go btcd/multi: fix a number of typos in comments. 2018-01-25 23:23:59 -06:00
merkle.go [lbry] enable segwit 2021-12-14 14:00:59 -08:00
merkle_test.go [lbry] test: fixed all current tests and delete three. 2021-12-14 14:00:59 -08:00
notifications.go blockchain: Consistency pass on subscribe code. 2017-08-15 11:12:56 -05:00
process.go [lbry] rpc: import invalidate/reconsiderblock from bchd 2021-12-14 14:00:59 -08:00
README.md [lbry] docs: update docs for LBRY 2021-12-14 14:01:09 -08:00
scriptval.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
scriptval_test.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
thresholdstate.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
thresholdstate_test.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
timesorter.go blockchain: Use int64 timestamps in block nodes. 2017-01-31 17:51:29 -06:00
timesorter_test.go blockchain: Consolidate tests into package. 2017-08-19 23:05:17 -05:00
upgrade.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
upgrade_test.go multi: Rework utxoset/view to use outpoints. 2018-05-27 03:07:41 -05:00
utxoviewpoint.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
validate.go [lbry] ci: fixups lint warnings 2021-12-15 08:27:58 -08:00
validate_test.go [lbry] test: fixed all current tests and delete three. 2021-12-14 14:00:59 -08:00
versionbits.go [lbry] rename btcd to lbcd 2021-12-14 14:00:59 -08:00
weight.go [lbry] enable segwit 2021-12-14 14:00:59 -08:00

blockchain

ISC License

Bitcoin Chain Processing Overview

Before a block is allowed into the block chain, it must go through an intensive series of validation rules. The following list serves as a general outline of those rules to provide some intuition into what is going on under the hood, but is by no means exhaustive:

  • Reject duplicate blocks
  • Perform a series of sanity checks on the block and its transactions such as verifying proof of work, timestamps, number and character of transactions, transaction amounts, script complexity, and merkle root calculations
  • Compare the block against predetermined checkpoints for expected timestamps and difficulty based on elapsed time since the checkpoint
  • Save the most recent orphan blocks for a limited time in case their parent blocks become available
  • Stop processing if the block is an orphan as the rest of the processing depends on the block's position within the block chain
  • Perform a series of more thorough checks that depend on the block's position within the block chain such as verifying block difficulties adhere to difficulty retarget rules, timestamps are after the median of the last several blocks, all transactions are finalized, checkpoint blocks match, and block versions are in line with the previous blocks
  • Determine how the block fits into the chain and perform different actions accordingly in order to ensure any side chains which have higher difficulty than the main chain become the new main chain
  • When a block is being connected to the main chain (either through reorganization of a side chain to the main chain or just extending the main chain), perform further checks on the block's transactions such as verifying transaction duplicates, script complexity for the combination of connected scripts, coinbase maturity, double spends, and connected transaction values
  • Run the transaction scripts to verify the spender is allowed to spend the coins
  • Insert the block into the block database