STONEWALL is a unique way of building transactions that increases the deniability of the link between sender and recipient of a transaction. A STONEWALL is designed to improve your privacy on the blockchain by introducing a large element of doubt and uncertainty into the datasets of blockchain analysis platforms. STONEWALL works using the Boltzmann script, which you can read more about here.
STONEWALL is enabled by default in Samourai wherever possible and there is no extra charge for using it.
STONEWALL will not always be possible for every transaction.
If you want to send a transaction without STONEWALL you can simply toggle STONEWALL off via the toggle switch on the Send screen.
Read more about STONEWALL here.
Boltzmann is a script that returns the entropy of a given transaction. This script measures the linkability of inputs to outputs of a given transaction, by determining the number of individual mappings of the inputs to outputs used in the transaction.
The higher the entropy of a transaction, the higher the Boltzmann score. The higher the Boltzmann score, the more resistant your transaction is to address/identity clustering techniques used by Blockchain analysis companies. This is because if the element of doubt connecting ownership of addresses by any entity is too great, it can pollute the entire 'cluster'.
To ensure higher entropy for our users transactions, Samourai have introduced STONEWALL as a send type that constructs your transactions in a way that consistently obtains a good Boltzmann score, wherever possible.
STONEWALL will activate by default for transactions in Samourai whenever the estimated Boltzmann score is high enough. If the estimated Boltzmann score for a given transaction is not high enough, a STONEWALL will be unavailable for that transaction.