#dusk $DUSK @Dusk I originally thought that for Data Driver, it would be enough for it to carry the contract owner's signature for security. After reading through the Dusk source code, that sense of certainty is only half left: a signature can prove who uploaded the file, but it cannot prove which version of the contract it is compatible with.
In Dusk, Data Driver is a standalone WASM file. Wallets, exchanges, and bots rely on it to read the machine bytes output by the contract into amounts, permissions, and events, and also to encode user actions into data the contract can execute. When uploading, the contract owner signs the hash of the Driver file, and the node then stores it according to the contract ID.
I found the main trouble is on the client side. W3sper currently also registers and caches the Driver by contract ID. The official repository’s open issue points out that here, there’s still no strong binding between the Driver and the contract version or hash.
This can lead to a very Dusk-style mismatch: an old terminal continues using the cached old Driver, while a new terminal has already downloaded the new Driver. Both files may come from legitimate paths, neither side throws an error, and at the same block height they can interpret amounts, events, and even transaction parameters as different things.
This is exactly the kind of failure I fear most in trading. If the transaction fails, it will alert. But if the data is silently read incorrectly, wallet balances, bot positions, and records on the data platform may each keep accounting differently, until the funds don’t match and the problem is finally exposed.
Going forward, I’ll add metrics for valuing $DUSK . It’s easy to pile up the number of contracts, but the consistency rate of Driver hashes is more valuable. We should be able to check which version of the Driver mainstream wallets, exchanges, and indexers used, from which height it became effective, and when older versions became invalid.
Dusk splits “executing contracts” and “interpreting contracts” into two layers, gaining flexibility—but it also takes on one extra layer of dedicated responsibility: even the legitimate file must prove that it hasn’t expired. Only then can everyone trade with more confidence.
$BTC
In Dusk, Data Driver is a standalone WASM file. Wallets, exchanges, and bots rely on it to read the machine bytes output by the contract into amounts, permissions, and events, and also to encode user actions into data the contract can execute. When uploading, the contract owner signs the hash of the Driver file, and the node then stores it according to the contract ID.
I found the main trouble is on the client side. W3sper currently also registers and caches the Driver by contract ID. The official repository’s open issue points out that here, there’s still no strong binding between the Driver and the contract version or hash.
This can lead to a very Dusk-style mismatch: an old terminal continues using the cached old Driver, while a new terminal has already downloaded the new Driver. Both files may come from legitimate paths, neither side throws an error, and at the same block height they can interpret amounts, events, and even transaction parameters as different things.
This is exactly the kind of failure I fear most in trading. If the transaction fails, it will alert. But if the data is silently read incorrectly, wallet balances, bot positions, and records on the data platform may each keep accounting differently, until the funds don’t match and the problem is finally exposed.
Going forward, I’ll add metrics for valuing $DUSK . It’s easy to pile up the number of contracts, but the consistency rate of Driver hashes is more valuable. We should be able to check which version of the Driver mainstream wallets, exchanges, and indexers used, from which height it became effective, and when older versions became invalid.
Dusk splits “executing contracts” and “interpreting contracts” into two layers, gaining flexibility—but it also takes on one extra layer of dedicated responsibility: even the legitimate file must prove that it hasn’t expired. Only then can everyone trade with more confidence.
$BTC