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[@januszg_](/creator/twitter/januszg_)
"again op_cat pls"  
[X Link](https://x.com/januszg_/status/1981677135418003744) [@januszg_](/creator/x/januszg_) 2025-10-24T11:00Z 5488 followers, XXX engagements


"breaking my hiatus from posting for this it was an honor to interview @lightcoin on the eve of the @Starknet & @AlpenLabs announcement we covered what the announcement means for users of Starknet and future users of Alpen. we also chatted through the reason for building a shared zk-verifier the trust model and why rollups are *the* most trust-minimized sidesystem coming to bitcoin the conversation also brought back some memories on rollups pre-bitvm. we even discussed the rollkit and sovereign sdk implementations. @modular_summit 2023 feels so long ago i've been following bitcoin rollups"  
[X Link](https://x.com/januszg_/status/1978456685271306298) [@januszg_](/creator/x/januszg_) 2025-10-15T13:43Z 5469 followers, 4469 engagements


"i like many bitcoiners do had an issue with the founders reward/token issuance model. it didn't feel like it was "neutral" money. but it's privacy properties are obviously better. i don't understand how anyone can argue that z2z tx's are less private than anything bitcoin has"  
[X Link](https://x.com/januszg_/status/1981719814763622908) [@januszg_](/creator/x/januszg_) 2025-10-24T13:49Z 5470 followers, XX engagements


"(fwiw bitvm was created for zkcoins/shielded csv. not originally evm chains)"  
[X Link](https://x.com/januszg_/status/1981719819285086252) [@januszg_](/creator/x/januszg_) 2025-10-24T13:49Z 5471 followers, XX engagements


"the reason you need op_cat (or something like it) is a few things: 1) you need a generic way to verify snarks. if you hard code a verifier (i.e. op_stark_verify) and there's a bug then you have to hardfork bitcoin to fix it 2) even though newer bridges offer this 1-of-N assumption the operator sets (those who actually hold the bitcoin) are still federated. the question of "who will run the mints" applies to "who will operate the bridges""  
[X Link](https://x.com/januszg_/status/1981719820853739558) [@januszg_](/creator/x/januszg_) 2025-10-24T13:49Z 5470 followers, XX engagements


"it is extremely risky to build this style of system and *you need* it to be self-custodial to operate at scale. hell devs who built self-custodial privacy systems are in jail"  
[X Link](https://x.com/januszg_/status/1981719826260213841) [@januszg_](/creator/x/januszg_) 2025-10-24T13:49Z 5471 followers, XX engagements


"i think about my decision to leave zcash (ecc) quite a lot. even more so now that it's getting attention on twitter. once at bitdevs someone said to me "well if we could do zcash tx's but with bitcoin would you still work on zcash" the answer is/was no so that's why i work on bitcoin stuff"  
[X Link](https://x.com/januszg_/status/1981719812364554660) [@januszg_](/creator/x/januszg_) 2025-10-24T13:49Z 5470 followers, XXX engagements


"outside of issuance an underrated thing about bitcoin (and monero to an extent) is how widely it is accepted in various internet marketplaces. i allegedly buy a few goods and services with bitcoin weekly. i use lightning and/or ecash wallets. it's really cool"  
[X Link](https://x.com/januszg_/status/1981719816319676628) [@januszg_](/creator/x/januszg_) 2025-10-24T13:49Z 5471 followers, XX engagements


"so the dream world is that something like op_cat is enabled and a trustless bridge can be built between bitcoin and a zcash style like l2. you get near-perfect privacy for neutral money that's accepted a lot of places"  
[X Link](https://x.com/januszg_/status/1981719817779327449) [@januszg_](/creator/x/januszg_) 2025-10-24T13:49Z 5471 followers, XX engagements


"are federations enough imo no. they are not self-custodial systems and if the feds came knocking there is a high likely hood that they could shut bridges down a zcash-like system has higher chances of attracting this type of attention thus trustless verifier needed"  
[X Link](https://x.com/januszg_/status/1981719822925725902) [@januszg_](/creator/x/januszg_) 2025-10-24T13:49Z 5471 followers, XX engagements


"does this mean we shouldn't build better privacy systems also imo no. it's still worth trying to build a zcash-like L2 with bitvm/glock. it is the best bitcoin can do today. but w/o a trustless system there's always an argument to opt for an altcoin for better privacy"  
[X Link](https://x.com/januszg_/status/1981719824507002995) [@januszg_](/creator/x/januszg_) 2025-10-24T13:49Z 5471 followers, XX engagements


"does this negate the need for other privacy systems being built in and around bitcoin again no. all the things should be built. but people are so focused on their "thiel funded cia operation" conspiracies they're missing the fact that there's an opportunity to make bitcoin "encrypted bitcoin". not an alt"  
[X Link](https://x.com/januszg_/status/1981719828013474168) [@januszg_](/creator/x/januszg_) 2025-10-24T13:50Z 5472 followers, XX engagements


"i've spent the last two days playing around with @arkade_os. it is super promising and i encourage people who care about scaling bitcoin to look into it"  
[X Link](https://x.com/januszg_/status/1981375379354112107) [@januszg_](/creator/x/januszg_) 2025-10-23T15:01Z 5488 followers, 6841 engagements


"does op_cat bitvm and/or the things create opps to shitcoin duh but it also makes bitcoin better "fuck you" money and too few people talk about this"  
[X Link](https://x.com/januszg_/status/1981719830282522783) [@januszg_](/creator/x/januszg_) 2025-10-24T13:50Z 5488 followers, XXX engagements


"thread on op_cat encrypted bitcoin and zcash from someone who left working at ecc to work on bitcoin"  
[X Link](https://x.com/januszg_/status/1981720079751369151) [@januszg_](/creator/x/januszg_) 2025-10-24T13:51Z 5466 followers, XX engagements