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TERM_DEF // UPGRADES_BIPS / BIP_375_SENDING_SILENT_PAYMENTS_WITH_PSBTS
BIP 375 (SENDING SILENT
PAYMENTS WITH PSBTS)
BIP 375 (Sending Silent Payments with PSBTs). PSBT extensions for constructing Silent Payment transactions.

This page sits in the Upgrades & BIPs section — The proposal process and the major upgrades that shaped Bitcoin. Read on for what it is, why it exists, how it works under the hood, and what to watch out for.
BIP 375 (Sending Silent Payments with PSBTs) — at a glance
UPGRADES
BIP 375 — "Sending Silent Payments with PSBTs" is a Bitcoin Improvement Proposal. PSBT extensions for constructing Silent Payment transactions. BIPs in this number range typically deal with recent (2020+) post-Taproot proposals and consensus upgrades.
Why it exists
DESIGN
BIP 375 (Sending Silent Payments with PSBTs) exists because Bitcoin has no central authority — every change to wallet, miner, or node behaviour has to be coordinated through written specs that everyone can read, critique, and implement. The BIP process is how the community arrives at a single answer to a specific protocol question without anyone being in charge of dictating it.
Mechanism
HOW IT WORKS
BIP-375 is implemented in source code that the proposer drafts alongside the text — typically against Bitcoin Core. Reviewers read both the spec and the code, and a BIP is only considered "real" once at least one independent implementation exists and is observed running on mainnet (or signet, for unactivated consensus changes).
1. Author drafts BIP-375 against the BIP-2 template — abstract, motivation, specification, rationale. 2. The text + a reference implementation are posted on the bitcoin-dev list and as a PR to bitcoin/bips. 3. Reviewers tear it apart: ambiguities, security concerns, edge cases, interaction with prior BIPs. 4. Once stable, the BIP editor merges it; it gets a number (BIP-375) and the status "draft" or "proposed". 5. Implementations land in Bitcoin Core / wallets / other clients. For consensus changes: activation parameters chosen. 6. After deployment + adoption, BIP-375 is promoted to "final"; deprecated proposals get "replaced" or "withdrawn".
BIP-375 — open the source
EXAMPLE
Full text : https://github.com/bitcoin/bips/blob/master/bip-0375.mediawiki BIP repo : https://github.com/bitcoin/bips Every BIP carries its own metadata header (Status, Type, Created, Layer, License) before the abstract. Skim the abstract first, then jump to "Specification" for the normative requirements, and "Reference Implementation" for the canonical code.
OPT-IN
No authority can force a BIP on anyone. Adoption depends entirely on whether the change is genuinely useful.
NUMBERED
Stable numeric reference — BIP-375 means the same thing across every wallet, miner, and node that has read this spec.
NON-CONSENSUS
BIP-375 is not a consensus rule — clients can implement it without coordinating with the network at large.
IMPLEMENTATION-DRIVEN
A BIP without a working implementation is just an idea. Real adoption requires code, testing, and time.
Things that catch people out
PITFALLS
  • Don't confuse "draft" / "proposed" / "final" status — read the BIP header before relying on it in production.
  • The BIP number is just an editorial counter — it doesn't imply correctness or stability. Always cross-reference with the latest bitcoin/bips repo.

TERMINOLOGY
BIP 375 (Sending Silent Payments with PSBTs)
PSBT extensions for constructing Silent Payment transactions.
Segregated Witness (SegWit, BIP 141)
The 2017 upgrade separating witness-data/">witness data, fixing tx malleability, and introducing weight units.
Taproot (BIP 341)
The 2021 upgrade introducing key-aggregable schnorr-signatures/">Schnorr signatures and Merkleized script trees.
Tapscript (BIP 342)
Script-language updates accompanying Taproot — new opcodes, removed limits.
Schnorr (BIP 340)
The Schnorr signature spec adopted by Taproot.
BIP Process
The community workflow for proposing, discussing, and tracking changes to Bitcoin.
Soft Fork Activation
The mechanism (versionbits, MASF, UASF, Speedy Trial) by which soft forks turn on.
MASF (Miner-Activated Soft Fork)
Activation triggered by miner signaling in block versions.