Antminer X9
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This guide explains Bitcoin Core abortprivatebroadcast RPC in plain English. It shows what the command does, what its result means and what it cannot prove.
TL;DR
- What it is: Bitcoin Core 31.0 introduced abortprivatebroadcast to remove a transaction currently in the node’s private-broadcast queue. The required identifier is compared with both txid and wtxid.
- Why it matters: abortprivatebroadcast is a precise local queue mutation. It is safe only when operators verify all matches, protect the returned raw transactions and communicate clearly that already transmitted Bitcoin transactions cannot be recalled.
- Current position: Require a second reviewer and explicit rollback or expiry, and pause payments, signing or network-dependent services until post-change evidence is complete.
Bitcoin Core abortprivatebroadcast RPC in simple English
Bitcoin Core abortprivatebroadcast RPC: Private broadcast is an opt-in sendrawtransaction path over Tor or I2P. The RPC only has useful targets that are still present in this node’s private queue.
Simple example
A node operator is checking Bitcoin Core abortprivatebroadcast RPC. Core compares it with txid and wtxid for all queued transactions. Validate length and encoding before invoking the mutation.
Key terms in plain English
- Bitcoin Core:
- Widely used software that validates Bitcoin and can provide wallet, network and operator tools.
- RPC:
- A command that software sends to a node to request information or a local action.
- Mempool:
- A node’s changing local collection of valid, unconfirmed transactions.
- Node:
- A computer running Bitcoin software that checks data and communicates with other peers.
Prerequisite
Private broadcast is an opt-in sendrawtransaction path over Tor or I2P. The RPC only has useful targets that are still present in this node’s private queue.
Identifier matching
Supply one required hexadecimal identifier. Core compares it with txid and wtxid for all queued transactions; validate length and encoding before invoking the mutation.
Multiple removals
The same txid may identify different witness serialisations with distinct wtxids. One request can therefore remove and return more than one queued record.
Sensitive response
Each removed entry contains txid, wtxid and full raw transaction hex. Restrict RPC credentials, redact logs and avoid returning the payload through broad monitoring systems.
Cancellation boundary
Removal stops future attempts by the local queue. It cannot retract a transaction already acknowledged, relayed, observed by another peer, present in a mempool or mined.
Idempotence
An empty removed_transactions array can mean no match or a prior successful abort. Reconcile with getprivatebroadcastinfo and mempool or chain state rather than treating emptiness as failure.
How specialists test it
Operators test the command on a non-production node first. They check a normal reply, an invalid request, a timeout and a restart. This shows what the response means and prevents one local result from being mistaken for a network-wide outcome.
Frequently asked questions
What is the main point of Bitcoin Core abortprivatebroadcast RPC?
Bitcoin Core abortprivatebroadcast RPC: Private broadcast is an opt-in sendrawtransaction path over Tor or I2P.
For Bitcoin Core abortprivatebroadcast RPC, what should a beginner know about prerequisite?
Private broadcast is an opt-in sendrawtransaction path over Tor or I2P.
For Bitcoin Core abortprivatebroadcast RPC, what should a beginner know about identifier matching?
Supply one required hexadecimal identifier. Core compares it with txid and wtxid for all queued transactions.
For Bitcoin Core abortprivatebroadcast RPC, what should a beginner know about multiple removals?
The same txid may identify different witness serialisations with distinct wtxids. One request can therefore remove and return more than one queued record.
Conclusion
abortprivatebroadcast is a precise local queue mutation. It is safe only when operators verify all matches, protect the returned raw transactions and communicate clearly that already transmitted Bitcoin transactions cannot be recalled.
Primary sources
Check the current specification status and the documentation for the exact implementation you operate before moving production funds or changing a mining node.
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