feat(solana): add verified token recipient owner hints - #114
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BitHighlander merged 1 commit intoJul 31, 2026
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Purpose
Add an optional SolanaSignTx field for candidate SPL token recipient owners. Firmware must derive ATA(owner, token_program, mint) and match the signed destination before displaying an owner.
This is the additive protocol prerequisite for hardware-verifiable zero-LUT Solana v0 payments such as x402. It does not enable blind signing and does not trust host-decoded payTo data.
Wire change
Validation
SOP
This protocol PR precedes Python, firmware-fork, hdwallet, and Vault staging. No upstream firmware PR or release is part of this change.