Antminer X9
Monero ASIC Miner
1000KH
HASHRATE
2.47W/KH
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2470W
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£852.34
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207
DAYS
EST. ROI
This guide explains Bitcoin Core walletcreatefundedpsbt 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 0.17.0 walletcreatefundedpsbt created and funded a BIP 174 Partially Signed Bitcoin Transaction. Supplied inputs could be augmented when insufficient, outputs could pay addresses or carry data, and wallet policy selected coins, change and fees.
- Why it matters: walletcreatefundedpsbt is a funding proposal, not an authorised payment. Safe automation reviews the wallet-selected inputs, exact recipient amounts, change, fees and information disclosure before any signer sees it.
- 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 walletcreatefundedpsbt RPC in simple English
Bitcoin Core walletcreatefundedpsbt RPC: The wallet may add inputs when those supplied do not cover outputs and fees. Treat this as a coin-selection proposal and review privacy clusters, confirmation policy and resulting change.
Simple example
A miner is checking Bitcoin Core walletcreatefundedpsbt RPC. Include them only when the downstream signer needs them and protect the resulting PSBT as sensitive wallet topology.
Key terms in plain English
- BIP:
- Bitcoin Improvement Proposal: a document describing a proposed rule, standard or process. Its status must be checked separately.
- 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.
- PSBT:
- A portable format for passing an unsigned or partly signed Bitcoin transaction between tools and signers.
- Node:
- A computer running Bitcoin software that checks data and communicates with other peers.
Inputs and outputs
Validate every txid, vout and sequence and represent each recipient exactly once. Outputs accepted address amounts or data hex; compatibility dictionary syntax should not obscure duplicate-key or ordering hazards.
Funding behaviour
The wallet may add inputs when those supplied do not cover outputs and fees. Treat this as a coin-selection proposal and review privacy clusters, confirmation policy and resulting change.
Change controls
changeAddress overrides pool selection; changePosition fixes placement; change_type applies only without an explicit address. Prove that any explicit change address belongs to the intended custody domain.
Fees and replacement
feeRate used historical BTC per kB units, while conf_target and estimate_mode delegated estimation. SubtractFeeFromOutputs reduces recipient amounts. Replaceable and sequence values must agree.
Locks and watch-only
lockUnspents can reserve selected coins locally; includeWatching permits watch-only selection but does not create signing keys. Reconcile locks after failure, timeout and restart.
BIP32 derivations
bip32derivs exposes known key paths. Include them only when the downstream signer needs them and protect the resulting PSBT as sensitive wallet topology.
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 walletcreatefundedpsbt RPC?
Bitcoin Core walletcreatefundedpsbt RPC: The wallet may add inputs when those supplied do not cover outputs and fees.
For Bitcoin Core walletcreatefundedpsbt RPC, what should a beginner know about inputs and outputs?
Validate every txid, vout and sequence and represent each recipient exactly once.
For Bitcoin Core walletcreatefundedpsbt RPC, what should a beginner know about funding behaviour?
The wallet may add inputs when those supplied do not cover outputs and fees.
For Bitcoin Core walletcreatefundedpsbt RPC, what should a beginner know about change controls?
changeAddress overrides pool selection. ChangePosition fixes placement. Change_type applies only without an explicit address.
Conclusion
walletcreatefundedpsbt is a funding proposal, not an authorised payment. Safe automation reviews the wallet-selected inputs, exact recipient amounts, change, fees and information disclosure before any signer sees it.
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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