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Hao Xu

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11 commits1 monitored projects1 candidates0 high-risk analyses
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Bitcoin CoreBitcoin Core11 commits1 candidates0 high risk
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Informational 15 AI analysisMessage 55 · Thin
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

fuzz: restore CreateSock in PCP targets

This commit fixes a small cleanup issue in Bitcoin Core's internal fuzz testing code. Fuzz tests are automated tools that feed random data into functions to find bugs; they are not part of the live Bitcoin network software. The change save…

No production code changedChange is confined to fuzz test harnessNo memory safety, cryptographic, or consensus modifications
a0e5e300by Hao Xu+6−01 file
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Informational 15 AI analysisMessage 95 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

fuzz: share a single mocked steady clock across FuzzedSock instances

This change only affects Bitcoin Core's internal fuzz testing code. It makes several test mock sockets share a single fake clock instead of each having their own, so timing behaves more realistically during automated fuzz testing. There is…

6fa41322by Hao Xu+45−4011 files
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Informational 15 AI analysisMessage 83 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

scripted-diff: Rename SteadyClockContext to FakeSteadyClock

This commit is a simple automated rename of a test-only helper class from SteadyClockContext to FakeSteadyClock. It only changes names in comments and test/fuzz code to make naming consistent. There is no functional change and no security …

855a3feeby Hao Xu+9−95 files
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Informational 24 AI analysisMessage 83 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

fuzz: reset the mockable steady clock between iterations

This is a small fix inside Bitcoin Core's internal fuzz-testing harness. Fuzz testing feeds the program many random inputs in sequence; the harness is supposed to reset global state between inputs so each test starts clean. The reset code …

State leakage across fuzz iterationsTest-only global state isolation failureMock clock not reset between test runs
19b32a2eby Hao Xu+1−01 file
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Informational 16 AI analysisMessage 81 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

index: add explicit early exit in NextSyncBlock() when the input is the chain tip

This is a small code cleanup in Bitcoin Core's index synchronization logic. It adds an explicit early return when the code has already reached the latest block in the chain, separating that case from the more complex 'block is no longer in…

Defensive code-path separation between 'synced to tip' and 'reorganization' casesAvoids unnecessary `FindFork()` call on the chain tipNo memory safety, cryptographic, or network-visible change identified
db3c25cfby Hao Xu+6−21 file
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Informational 15 AI analysisMessage 72 · Adequate
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

help: enrich help text for `-loadblock`

This commit only changes the user-facing help text for the `-loadblock` command-line option. It adds a note that the option cannot read obfuscated (scrambled) block files. There is no code behavior change, no bug fix, and no security-relev…

2e041b49by Hao Xu+1−11 file
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Informational 15 AI analysisMessage 82 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

test: add a test for txgraph staging

This commit only adds a new unit test for an existing feature called 'txgraph staging' in Bitcoin Core. It does not change any production code, so it cannot introduce a security vulnerability or fix one. It is purely a test addition.

fe0b1513by Hao Xu+53−01 file
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Informational 15 AI analysisMessage 82 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

test: add block builder tests for txgraph

This commit only adds and updates unit tests for an internal transaction-graph data structure. It does not change any production code that runs on the Bitcoin network, so it cannot introduce a security vulnerability or be exploited by atta…

ef253a9dby Hao Xu+31−131 file
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Informational 15 AI analysisMessage 90 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

test: add a chunk test for txgraph

This commit only adds a new unit test for an existing internal function in Bitcoin Core's transaction graph code. It does not change any production code, so it cannot introduce a security vulnerability or fix one.

4a1ac31eby Hao Xu+59−01 file
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Informational 15 AI analysisMessage 85 · Strong
BC Bitcoin CoreBitcoin Core BitcoinSupply chain

refactor: remove redundant locator cleanup in BaseIndex::Init()

This is a small internal code cleanup in Bitcoin Core's index subsystem. It changes how the program reads a saved 'block locator' (a bookmark of where an index thinks it is in the blockchain) so the code is slightly simpler. The behavior i…

facd01e6by Hao Xu+8−72 files
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