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Solana definitions
To allow nicer token presentation on the device, Trezor allows passing Definitions as additional info. Currently only one token can be included in the definitions. Solana tokens are uniquely identified by their program id and mint account, Trezor additionally expects a name and a ticker symbol.
In the future we might also include definitions for instructions.
Retrieving the definitions
A full list of Solana definitions is compiled from multiple sources and is available in a separate repository.
From this list, a collection of binary blobs is generated, signed, and made available online.
A given Trezor firmware will only accept signed definitions newer than a certain date, typically one month before firmware release. This means that a client application should either always fetch fresh definitions from the official URLs, or refresh its local copy frequently.
The base URL for the definitions is https://data.trezor.io/firmware/solana-definitions/.
Definition format
Look at ethereum-definitions.md's Definition Format section.