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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

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▤ addition_overflow.cpp

▤ base_encode_decode.cpp

▤ block_index_tree.cpp

▤ block_index.cpp

▤ block_policy_estimator.cpp

▤ cluster_linearize.cpp

▤ crypto_aes256cbc.cpp

▤ crypto_chacha20.cpp

▤ crypto_chacha20poly1305.cpp

▤ crypto_common.cpp

▤ crypto_diff_fuzz_chacha20.cpp

▤ crypto_hkdf_hmac_sha256_l32.cpp

▤ crypto_poly1305.cpp

▤ descriptor_parse.cpp

▤ deserialize.cpp

▤ difference_formatter.cpp

▤ FuzzedDataProvider.h

▤ load_external_block_file.cpp

▤ multiplication_overflow.cpp

▤ net_permissions.cpp

▤ net.cpp

▤ netaddress.cpp

▤ netbase_dns_lookup.cpp

▤ node_eviction.cpp

▤ overflow.cpp

▤ p2p_handshake.cpp

▤ p2p_headers_presync.cpp

▤ p2p_private_broadcast.cpp

▤ p2p_transport_serialization.cpp

▤ package_eval.cpp

▤ parse_hd_keypath.cpp

▤ partially_downloaded_block.cpp

▤ pcp.cpp

▤ policy_estimator_io.cpp

▤ poolresource.cpp

▤ pow.cpp

▤ prevector.cpp

▤ primitives_transaction.cpp

▤ private_broadcast.cpp

▤ process_message.cpp

▤ process_messages.cpp

▤ rolling_bloom_filter.cpp

▤ rpc.cpp

▤ script_assets_test_minimizer.cpp

▤ script_descriptor_cache.cpp

▤ script_flags.cpp

▤ script_format.cpp

▤ script_interpreter.cpp

▤ script_ops.cpp

▤ script_parsing.cpp

▤ script_sigcache.cpp

▤ script_sign.cpp

▤ script.cpp

▤ scriptnum_ops.cpp

▤ secp256k1_ec_seckey_import_export_der.cpp

▤ secp256k1_ecdsa_signature_parse_der_lax.cpp

▤ signature_checker.cpp

▤ utxo_total_supply.cpp

▤ validation_load_mempool.cpp

▤ 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

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▤ script_tests.cpp

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▤ scriptnum10.h

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▤ sighash_tests.cpp

▤ sigopcount_tests.cpp

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▤ 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

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▤ bitcoin-wallet-res.rc

▤ blockencodings.cppGuide

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▤ chain.h

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▤ chainparamsbase.cppGuide

▤ chainparamsbase.hGuide

▤ chainparamsseeds.h

▤ checkqueue.hGuide

▤ clientversion.cppGuide

▤ clientversion.hGuide

▤ cluster_linearize.h

▤ CMakeLists.txt

▤ coins.cppGuide

▤ coins.hGuide

▤ compressor.cppGuide

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▤ core_io.cpp

▤ core_io.hGuide

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▤ cuckoocache.h

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▤ dbwrapper.hGuide

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▤ deploymentstatus.cppGuide

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▤ dummywallet.cppGuide

▤ external_signer.cpp

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▤ merkleblock.cppGuide

▤ merkleblock.hGuide

▤ musig.cpp

▤ musig.hGuide

▤ net_permissions.cppGuide

▤ net_permissions.hGuide

▤ net_processing.cppGuide

▤ netaddress.cppGuide

▤ netmessagemaker.hGuide

▤ noui.cppGuide

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▤ 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

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▤ CMakeLists.txtGuide

▤ libbitcoinkernel.pc.in

bitcoin / src / test / fuzz / key.cpp

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13,270 bytes · SHA-256 2b9765130f931503… · View upstream ↗

251
252    {
253        std::vector<unsigned char> vch_sig;
254        const bool ok = key.Sign(random_uint256, vch_sig, false);
255        assert(ok);
256        assert(pubkey.Verify(random_uint256, vch_sig));
257        assert(CPubKey::CheckLowS(vch_sig));
258
259        const std::vector<unsigned char> vch_invalid_sig{vch_sig.begin(), vch_sig.begin() + vch_sig.size() - 1};
260        assert(!pubkey.Verify(random_uint256, vch_invalid_sig));
261        assert(!CPubKey::CheckLowS(vch_invalid_sig));
262    }
263
264    {
265        std::vector<unsigned char> vch_compact_sig;
266        const bool ok_sign_compact = key.SignCompact(random_uint256, vch_compact_sig);
267        assert(ok_sign_compact);
268
269        CPubKey recover_pubkey;
270        const bool ok_recover_compact = recover_pubkey.RecoverCompact(random_uint256, vch_compact_sig);
271        assert(ok_recover_compact);
272        assert(recover_pubkey == pubkey);
273    }
274
275    {
276        CPubKey child_pubkey;
277        ChainCode child_chaincode;
278        const bool ok = pubkey.Derive(child_pubkey, child_chaincode, 0, ChainCode{random_uint256});
279        assert(ok);
280        assert(child_pubkey != pubkey);
281        assert(child_pubkey.IsCompressed());
282        assert(child_pubkey.IsFullyValid());
283        assert(child_pubkey.IsValid());
284        assert(child_pubkey.size() == 33);
285        assert(child_chaincode != random_uint256);
286    }
287
288    const CPrivKey priv_key = key.GetPrivKey();
289
290    {
291        for (const bool skip_check : {true, false}) {
292            CKey loaded_key;
293            const bool ok = loaded_key.Load(priv_key, pubkey, skip_check);
294            assert(ok);
295            assert(key == loaded_key);
296        }
297    }
298}
299
300FUZZ_TARGET(ellswift_roundtrip, .init = initialize_key)
301{
302    FuzzedDataProvider fdp{buffer.data(), buffer.size()};
303
304    CKey key = ConsumePrivateKey(fdp, /*compressed=*/true);
305    if (!key.IsValid()) return;
306
307    auto ent32 = fdp.ConsumeBytes<std::byte>(32);
308    ent32.resize(32);
309
310    auto encoded_ellswift = key.EllSwiftCreate(ent32);
311    auto decoded_pubkey = encoded_ellswift.Decode();
312
313    uint256 hash{ConsumeUInt256(fdp)};
314    std::vector<unsigned char> sig;
315    key.Sign(hash, sig);
316    assert(decoded_pubkey.Verify(hash, sig));
317}
318
319FUZZ_TARGET(bip324_ecdh, .init = initialize_key)
320{
321    FuzzedDataProvider fdp{buffer.data(), buffer.size()};
322
323    // We generate private key, k1.
324    CKey k1 = ConsumePrivateKey(fdp, /*compressed=*/true);
325    if (!k1.IsValid()) return;
326
327    // They generate private key, k2.
328    CKey k2 = ConsumePrivateKey(fdp, /*compressed=*/true);
329    if (!k2.IsValid()) return;
330
331    // We construct an ellswift encoding for our key, k1_ellswift.
332    auto ent32_1 = fdp.ConsumeBytes<std::byte>(32);
333    ent32_1.resize(32);
334    auto k1_ellswift = k1.EllSwiftCreate(ent32_1);
335
336    // They construct an ellswift encoding for their key, k2_ellswift.
337    auto ent32_2 = fdp.ConsumeBytes<std::byte>(32);
338    ent32_2.resize(32);
339    auto k2_ellswift = k2.EllSwiftCreate(ent32_2);
340
341    // They construct another (possibly distinct) ellswift encoding for their key, k2_ellswift_bad.
342    auto ent32_2_bad = fdp.ConsumeBytes<std::byte>(32);
343    ent32_2_bad.resize(32);
344    auto k2_ellswift_bad = k2.EllSwiftCreate(ent32_2_bad);
345    assert((ent32_2_bad == ent32_2) == (k2_ellswift_bad == k2_ellswift));
346
347    // Determine who is who.
348    bool initiating = fdp.ConsumeBool();
349
350    // We compute our shared secret using our key and their public key.
351    auto ecdh_secret_1 = k1.ComputeBIP324ECDHSecret(k2_ellswift, k1_ellswift, initiating);
352    // They compute their shared secret using their key and our public key.
353    auto ecdh_secret_2 = k2.ComputeBIP324ECDHSecret(k1_ellswift, k2_ellswift, !initiating);
354    // Those must match, as everyone is behaving correctly.
355    assert(ecdh_secret_1 == ecdh_secret_2);
356
357    if (k1_ellswift != k2_ellswift) {
358        // Unless the two keys are exactly identical, acting as the wrong party breaks things.
359        auto ecdh_secret_bad = k1.ComputeBIP324ECDHSecret(k2_ellswift, k1_ellswift, !initiating);
360        assert(ecdh_secret_bad != ecdh_secret_1);
361    }
362
363    if (k2_ellswift_bad != k2_ellswift) {
364        // Unless both encodings created by them are identical, using the second one breaks things.
365        auto ecdh_secret_bad = k1.ComputeBIP324ECDHSecret(k2_ellswift_bad, k1_ellswift, initiating);
366        assert(ecdh_secret_bad != ecdh_secret_1);
367    }
368}
369

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

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