BITCOIN MAINNETLive explorer status

Explorer Mempool Feed Forum Visualizer Receipts Tools Learn Code

Inside Bitcoin

Opening the selected file…

₿MyBitcoinExplorer

Bitcoin, in focus.
Explore the network. Understand the connections.

Explore Bitcoin with clarity.

READ THE CODE

Inside Bitcoin

The code behind the network, with room to understand it.

Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

bitcoin / bitcoinstable

Find a file

▤ allocator_tests.cpp

▤ amount_tests.cpp

▤ argsman_tests.cpp

▤ arith_uint256_tests.cpp

▤ baseindex_tests.cpp

▤ blockchain_tests.cpp

▤ blockencodings_tests.cpp

▤ blockfilter_index_tests.cpp

▤ blockfilter_tests.cpp

▤ blockmanager_tests.cpp

▤ blockpolicyestimator_tests.cpp

▤ bloom_tests.cpp

▤ bswap_tests.cpp

▤ btcsignals_tests.cpp

▤ caches_tests.cpp

▤ chain_tests.cpp

▤ chainstate_write_tests.cpp

▤ checkqueue_tests.cpp

▤ cluster_linearize_tests.cpp

▤ CMakeLists.txt

▤ coins_tests.cpp

▤ coinscachepair_tests.cpp

▤ coinstatsindex_tests.cpp

▤ coinsviewoverlay_tests.cpp

▤ common_url_tests.cpp

▤ compress_tests.cpp

▤ crypto_tests.cpp

▤ cuckoocache_tests.cpp

▤ dbwrapper_tests.cpp

▤ denialofservice_tests.cpp

▤ descriptor_tests.cpp

▤ disconnected_transactions.cpp

▤ feefrac_tests.cpp

▤ feerounder_tests.cpp

▤ fees_util_tests.cpp

▤ headers_sync_chainwork_tests.cpp

▤ httpserver_tests.cpp

▤ i2p_tests.cpp

▤ interfaces_tests.cpp

▤ mempool_fee_estimator_tests.cpp

▤ mempool_tests.cpp

▤ merkle_tests.cpp

▤ merkleblock_tests.cpp

▤ miner_tests.cpp

▤ miniminer_tests.cpp

▤ miniscript_tests.cpp

▤ minisketch_tests.cpp

▤ multisig_tests.cpp

▤ net_peer_connection_tests.cpp

▤ net_peer_eviction_tests.cpp

▤ net_tests.cpp

▤ netbase_tests.cpp

▤ node_init_tests.cpp

▤ node_warnings_tests.cpp

▤ orphanage_tests.cpp

▤ prevector_tests.cpp

▤ private_broadcast_tests.cpp

▤ reverselock_tests.cpp

▤ rpc_tests.cpp

▤ sanity_tests.cpp

▤ scheduler_tests.cpp

▤ script_assets_tests.cpp

▤ script_p2sh_tests.cpp

▤ script_parse_tests.cpp

▤ script_segwit_tests.cpp

▤ script_standard_tests.cpp

▤ script_tests.cpp

▤ scriptnum_tests.cpp

▤ scriptnum10.h

▤ serfloat_tests.cpp

▤ serialize_tests.cpp

▤ settings_tests.cpp

▤ sighash_tests.cpp

▤ sigopcount_tests.cpp

▤ system_ram_tests.cpp

▤ system_tests.cpp

▤ testnet4_miner_tests.cpp

▤ threadpool_tests.cpp

▤ timeoffsets_tests.cpp

▤ torcontrol_tests.cpp

▤ transaction_tests.cpp

▤ translation_tests.cpp

▤ txdownload_tests.cpp

▤ txgraph_tests.cpp

▤ txindex_tests.cpp

▤ txospenderindex_tests.cpp

▤ txpackage_tests.cpp

▤ txreconciliation_tests.cpp

▤ txrequest_tests.cpp

▤ txvalidation_tests.cpp

▤ txvalidationcache_tests.cpp

▤ uint256_tests.cpp

▤ util_check_tests.cpp

▤ util_expected_tests.cpp

▤ util_string_tests.cpp

▤ util_tests.cpp

▤ util_threadnames_tests.cpp

▤ util_trace_tests.cpp

▤ validation_block_tests.cpp

▤ validation_chainstate_tests.cpp

▤ validation_chainstatemanager_tests.cpp

▤ validation_flush_tests.cpp

▤ validation_tests.cpp

▤ validationinterface_tests.cpp

▤ versionbits_tests.cpp

▤ arith_uint256.hGuide

▤ bitcoin-chainstate.cpp

▤ bitcoin-cli-res.rc

▤ bitcoin-cli.cppGuide

▤ bitcoin-res.rc

▤ bitcoin-tx-res.rc

▤ bitcoin-tx.cpp

▤ bitcoin-util-res.rc

▤ bitcoin-util.cpp

▤ bitcoin-wallet-res.rc

▤ blockencodings.cppGuide

▤ blockencodings.hGuide

▤ blockfilter.cppGuide

▤ blockfilter.hGuide

▤ chain.cppGuide

▤ chain.h

▤ chainparams.cppGuide

▤ chainparams.hGuide

▤ chainparamsbase.cppGuide

▤ chainparamsbase.hGuide

▤ chainparamsseeds.h

▤ checkqueue.hGuide

▤ clientversion.cppGuide

▤ clientversion.hGuide

▤ cluster_linearize.h

▤ CMakeLists.txt

▤ coins.cppGuide

▤ coins.hGuide

▤ compressor.cppGuide

▤ compressor.hGuide

▤ core_io.cpp

▤ core_io.hGuide

▤ core_memusage.hGuide

▤ cuckoocache.h

▤ dbwrapper.cpp

▤ dbwrapper.hGuide

▤ deploymentinfo.cppGuide

▤ deploymentinfo.hGuide

▤ deploymentstatus.cppGuide

▤ deploymentstatus.hGuide

▤ dummywallet.cppGuide

▤ external_signer.cpp

▤ external_signer.hGuide

▤ merkleblock.cppGuide

▤ merkleblock.hGuide

▤ musig.cpp

▤ musig.hGuide

▤ net_permissions.cppGuide

▤ net_permissions.hGuide

▤ net_processing.cppGuide

▤ netaddress.cppGuide

▤ netmessagemaker.hGuide

▤ noui.cppGuide

▤ noui.hGuide

▤ outputtype.cppGuide

▤ private_broadcast.cpp

▤ private_broadcast.h

▤ semaphore_grant.hGuide

▤ threadsafety.hGuide

▤ tinyformat.h

▤ torcontrol.cppGuide

▤ validation.cppGuide

▤ validation.h

▤ validationinterface.cpp

▤ validationinterface.h

▤ versionbits_impl.hGuide

▤ versionbits.cpp

▤ versionbits.hGuide

▤ walletinitinterface.hGuide

▤ CMakeLists.txtGuide

▤ libbitcoinkernel.pc.in

bitcoin / src / test / sighash_tests.cpp

Download source ↓

12,287 bytes · SHA-256 da34611d18101d9e… · View upstream ↗

251
252            // Calling with a different scriptcode (for instance in case a CODESEP is encountered) will not return the cache value but
253            // overwrite it. The sighash will always be different except in case of legacy SIGHASH_SINGLE bug.
254            const auto sighash_with_cache2{SignatureHash(diff_scriptcode, tx, in_index, hash_type, amount, sigversion, nullptr, &cache)};
255            const auto sighash_no_cache2{SignatureHash(diff_scriptcode, tx, in_index, hash_type, amount, sigversion, nullptr, nullptr)};
256            BOOST_CHECK_EQUAL(sighash_with_cache2, sighash_no_cache2);
257            if (!expect_one) {
258                BOOST_CHECK_NE(sighash_with_cache, sighash_with_cache2);
259            } else {
260                BOOST_CHECK_EQUAL(sighash_with_cache, sighash_with_cache2);
261                BOOST_CHECK_EQUAL(sighash_with_cache, uint256::ONE);
262            }
263
264            // Calling the cached version again should return the same value again.
265            BOOST_CHECK_EQUAL(sighash_with_cache2, SignatureHash(diff_scriptcode, tx, in_index, hash_type, amount, sigversion, nullptr, &cache));
266
267            // And if we store a different value for this scriptcode and hash type it will return that instead.
268            {
269                HashWriter h{};
270                h << 42;
271                cache.Store(hash_type, scriptcode, h);
272                const auto stored_hash{h.GetHash()};
273                BOOST_CHECK(cache.Load(hash_type, scriptcode, h));
274                const auto loaded_hash{h.GetHash()};
275                BOOST_CHECK_EQUAL(stored_hash, loaded_hash);
276            }
277
278            // And using this mutated cache with the sighash function will return the new value (except in the legacy SIGHASH_SINGLE bug
279            // case in which it'll return 1).
280            if (!expect_one) {
281                BOOST_CHECK_NE(SignatureHash(scriptcode, tx, in_index, hash_type, amount, sigversion, nullptr, &cache), sighash_with_cache);
282                HashWriter h{};
283                BOOST_CHECK(cache.Load(hash_type, scriptcode, h));
284                h << hash_type;
285                const auto new_hash{h.GetHash()};
286                BOOST_CHECK_EQUAL(SignatureHash(scriptcode, tx, in_index, hash_type, amount, sigversion, nullptr, &cache), new_hash);
287            } else {
288                BOOST_CHECK_EQUAL(SignatureHash(scriptcode, tx, in_index, hash_type, amount, sigversion, nullptr, &cache), uint256::ONE);
289            }
290
291            // Wipe the cache and restore the correct cached value for this scriptcode and hash_type before starting the next iteration.
292            HashWriter dummy{};
293            cache.Store(hash_type, diff_scriptcode, dummy);
294            (void)SignatureHash(scriptcode, tx, in_index, hash_type, amount, sigversion, nullptr, &cache);
295            BOOST_CHECK(cache.Load(hash_type, scriptcode, dummy) || expect_one);
296        }
297    }
298}
299
300BOOST_AUTO_TEST_SUITE_END()
301

A READING COMPANION

Source available. Guide coming next.

This file is included in the stable source snapshot. A file-specific guide has not been published yet.

440 guided files · 2,580 pending. Guides cover key sections, not every line.

cmake/bitcoin-build-config.h.in src/consensus/amount.h src/consensus/consensus.h src/primitives/block.h src/primitives/transaction.h src/crypto/sha256.h src/util/moneystr.h src/clientversion.h src/uint256.h src/script/script.h src/policy/policy.h CMakeLists.txt README.md COPYING src/consensus/tx_check.cpp src/consensus/tx_verify.cpp src/consensus/merkle.cpp src/pow.cpp src/validation.cpp src/script/interpreter.cpp src/script/solver.cpp src/script/sign.cpp src/key_io.cpp src/net.cpp src/net_processing.cpp src/netaddress.cpp src/protocol.h src/wallet/wallet.cpp src/wallet/spend.cpp

← Previous 250 linesCode page 2

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

Independent explanations by MyBitcoinExplorer. Not affiliated with or endorsed by Bitcoin Core. Guides are educational and do not replace the source or its tests.

Bitcoin Core source © its contributors, distributed under the MIT license. Original notices and bundled third-party licenses are retained in the source tree.