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.

7,048 bytes · SHA-256 a2010f343487d3f7… · View upstream ↗

1Creative Commons Legal Code
2
3CC0 1.0 Universal
4
5    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
6    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
7    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
8    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
9    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
10    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
11    THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
12    HEREUNDER.
13
14Statement of Purpose
15
16The laws of most jurisdictions throughout the world automatically confer
17exclusive Copyright and Related Rights (defined below) upon the creator
18and subsequent owner(s) (each and all, an "owner") of an original work of
19authorship and/or a database (each, a "Work").
20
21Certain owners wish to permanently relinquish those rights to a Work for
22the purpose of contributing to a commons of creative, cultural and
23scientific works ("Commons") that the public can reliably and without fear
24of later claims of infringement build upon, modify, incorporate in other
25works, reuse and redistribute as freely as possible in any form whatsoever
26and for any purposes, including without limitation commercial purposes.
27These owners may contribute to the Commons to promote the ideal of a free
28culture and the further production of creative, cultural and scientific
29works, or to gain reputation or greater distribution for their Work in
30part through the use and efforts of others.
31
32For these and/or other purposes and motivations, and without any
33expectation of additional consideration or compensation, the person
34associating CC0 with a Work (the "Affirmer"), to the extent that he or she
35is an owner of Copyright and Related Rights in the Work, voluntarily
36elects to apply CC0 to the Work and publicly distribute the Work under its
37terms, with knowledge of his or her Copyright and Related Rights in the
38Work and the meaning and intended legal effect of CC0 on those rights.
39
401. Copyright and Related Rights. A Work made available under CC0 may be
41protected by copyright and related or neighboring rights ("Copyright and
42Related Rights"). Copyright and Related Rights include, but are not
43limited to, the following:
44
45  i. the right to reproduce, adapt, distribute, perform, display,
46     communicate, and translate a Work;
47 ii. moral rights retained by the original author(s) and/or performer(s);
48iii. publicity and privacy rights pertaining to a person's image or
49     likeness depicted in a Work;
50 iv. rights protecting against unfair competition in regards to a Work,
51     subject to the limitations in paragraph 4(a), below;
52  v. rights protecting the extraction, dissemination, use and reuse of data
53     in a Work;
54 vi. database rights (such as those arising under Directive 96/9/EC of the
55     European Parliament and of the Council of 11 March 1996 on the legal
56     protection of databases, and under any national implementation
57     thereof, including any amended or successor version of such
58     directive); and
59vii. other similar, equivalent or corresponding rights throughout the
60     world based on applicable law or treaty, and any national
61     implementations thereof.
62
632. Waiver. To the greatest extent permitted by, but not in contravention
64of, applicable law, Affirmer hereby overtly, fully, permanently,
65irrevocably and unconditionally waives, abandons, and surrenders all of
66Affirmer's Copyright and Related Rights and associated claims and causes
67of action, whether now known or unknown (including existing as well as
68future claims and causes of action), in the Work (i) in all territories
69worldwide, (ii) for the maximum duration provided by applicable law or
70treaty (including future time extensions), (iii) in any current or future
71medium and for any number of copies, and (iv) for any purpose whatsoever,
72including without limitation commercial, advertising or promotional
73purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
74member of the public at large and to the detriment of Affirmer's heirs and
75successors, fully intending that such Waiver shall not be subject to
76revocation, rescission, cancellation, termination, or any other legal or
77equitable action to disrupt the quiet enjoyment of the Work by the public
78as contemplated by Affirmer's express Statement of Purpose.
79
803. Public License Fallback. Should any part of the Waiver for any reason
81be judged legally invalid or ineffective under applicable law, then the
82Waiver shall be preserved to the maximum extent permitted taking into
83account Affirmer's express Statement of Purpose. In addition, to the
84extent the Waiver is so judged Affirmer hereby grants to each affected
85person a royalty-free, non transferable, non sublicensable, non exclusive,
86irrevocable and unconditional license to exercise Affirmer's Copyright and
87Related Rights in the Work (i) in all territories worldwide, (ii) for the
88maximum duration provided by applicable law or treaty (including future
89time extensions), (iii) in any current or future medium and for any number
90of copies, and (iv) for any purpose whatsoever, including without
91limitation commercial, advertising or promotional purposes (the
92"License"). The License shall be deemed effective as of the date CC0 was
93applied by Affirmer to the Work. Should any part of the License for any
94reason be judged legally invalid or ineffective under applicable law, such
95partial invalidity or ineffectiveness shall not invalidate the remainder
96of the License, and in such case Affirmer hereby affirms that he or she
97will not (i) exercise any of his or her remaining Copyright and Related
98Rights in the Work or (ii) assert any associated claims and causes of
99action with respect to the Work, in either case contrary to Affirmer's
100express Statement of Purpose.
101
1024. Limitations and Disclaimers.
103
104 a. No trademark or patent rights held by Affirmer are waived, abandoned,
105    surrendered, licensed or otherwise affected by this document.
106 b. Affirmer offers the Work as-is and makes no representations or
107    warranties of any kind concerning the Work, express, implied,
108    statutory or otherwise, including without limitation warranties of
109    title, merchantability, fitness for a particular purpose, non
110    infringement, or the absence of latent or other defects, accuracy, or
111    the present or absence of errors, whether or not discoverable, all to
112    the greatest extent permissible under applicable law.
113 c. Affirmer disclaims responsibility for clearing rights of other persons
114    that may apply to the Work or any use thereof, including without
115    limitation any person's Copyright and Related Rights in the Work.
116    Further, Affirmer disclaims responsibility for obtaining any necessary
117    consents, permissions or other rights required for any use of the
118    Work.
119 d. Affirmer understands and acknowledges that Creative Commons is not a
120    party to this document and has no duty or obligation with respect to
121    this CC0 or use of the Work.
122

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.