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Jason Dreyzehner
1,678 posts
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Jason Dreyzehner
@bitjson
Software security, markets, and bitcoin cash. Working on $BCH and @Bitauth, previously @BitPay. Lead maintainer @ChaingraphCash, @Libauth, and @BitauthIDE.
New Hampshire
blog.bitjson.com
Joined November 2009
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  • 已置顶
    user avatar
    Jason Dreyzehner
    @bitjson
    2023年5月15日
    Replying to @bitjson
    In the rest of this thread, I'll describe CashTokens and why I think they're an important tool for expanding financial access and protecting human rights.
    12.8K
  • user avatar
    Jason Dreyzehner
    @bitjson
    2024年12月10日
    By 2014, BTC was the clear future of money: inflation resistant, pro-freedom, sound money for the world. A decade later, it's a quirky, unreliable, “digital gold”. This book explains how we lost a decade in the growth of peer-to-peer cash, and how we nearly lost the movement
    40:40
    user avatar
    Tucker Carlson
    TCN
    @TuckerCarlson
    2024年12月10日
    Roger Ver is facing life in prison for revealing how the US government worked secretly to subvert cryptocurrency and prevent economic freedom. More people should hear this story. (0:00) Roger Ver Facing Extradition (7:49) The Hijacking of Bitcoin (12:18) How the Government
    8K
  • user avatar
    Jason Dreyzehner
    @bitjson
    2023年11月15日
    The May 2024 upgrade to Bitcoin Cash (BCH), CHIP-2023-04 Adaptive Blocksize Limit Algorithm, is now active on chipnet at block #174519 (0000000068675ff881ff763de0c4b47b8da8f64c7800c016a9dac60f7f8e0007)! 🎉 This upgrade resolves an economic vulnerability that was introduced in
    A screenshot of a Bitcoin Cash chipnet block explorer displaying block #174519 with block header hash "0000000068675ff881ff763de0c4b47b8da8f64c7800c016a9dac60f7f8e0007".
    15.4K
  • user avatar
    Jason Dreyzehner
    @bitjson
    2022年6月30日
    Excited to share a new proof of concept: Joint-Execution Decentralized Exchange (Jedex) is a non-custodial, censorship-resistant token DEX architecture for Bitcoin Cash (BCH). Jedex demos new techniques made possible by CashTokens, an upgrade proposal for 2023. (1/n)
  • user avatar
    Jason Dreyzehner
    @bitjson
    2023年5月15日
    Congrats on the 2023 upgrade, Bitcoin Cash! 🎉 Beginning with block #792773 (000000000000000002fc0cdadaef1857bbd2936d37ea94f80ba3db4a5e8353e8), $BCH supports #CashTokens, future-proof multiparty vaults (P2SH32), and several non-breaking technical improvements to TX validation.
    12K
  • user avatar
    Jason Dreyzehner
    @bitjson
    2017年12月15日
    Very excited to begin rolling out full support for Bitcoin Cash. With average transaction fees on the BTC network now running over ~$20 USD, it couldn't come at a better time.
    user avatar
    BitPay
    @BitPay
    2017年12月15日
    BitPay Will Process Payments on Multiple Blockchains, Starting with Bitcoin Cash | The BitPay Blog blog.bitpay.com/multiple-block… #BitcoinCash #Bitcoin #Segwit
  • user avatar
    Jason Dreyzehner
    @bitjson
    2022年11月15日
    The May 2023 upgrade to Bitcoin Cash (BCH) is now active on the test network! 🎉 Supported at block #121957 (0000000056087dee73fb66178ca70da89dfd0be098b1a63cf6fe93934cd04c78): transactions as small as 65 bytes, P2SH32 for stronger contract security, and CashTokens!
  • user avatar
    Jason Dreyzehner
    @bitjson
    2024年11月15日
    The May 2025 upgrade to Bitcoin Cash is now active on chipnet at block 227,228! 🎉 (0000000000b8dc4625844fa367b12317645fac7c9afbc5fb8def4025a6822c86) This upgrade includes two Bitcoin Cash Improvement Proposals (CHIPs): Targeted Virtual Machine Limits CHIP The VM Limits CHIP
    Screenshot of block #227,228 (0000000000b8dc4625844fa367b12317645fac7c9afbc5fb8def4025a6822c86) at chipnet.chaingraph.cash
    user avatar
    Jason Dreyzehner
    @bitjson
    2024年11月14日
    Bitcoin Cash's November 15th chipnet lock-in is almost here, and the VM Limits & BigInt CHIP upgrades are expected to activate in 2025! 🚀 If you run a node on chipnet, please upgrade today! Over the past 6 weeks, we’ve been requesting final approval from all stakeholders: over
    10.9K
  • user avatar
    Jason Dreyzehner
    @bitjson
    2023年4月13日
    Just published CashTokens.org, a new website about the CashTokens technology, including technical specifications, documentation, and other resources.
    9.1K
  • user avatar
    Jason Dreyzehner
    @bitjson
    2024年4月10日
    Reminder: the US Dollar began as a "layer 2" network for gold.
    user avatar
    Nikita Zhavoronkov
    @nikzh
    2024年4月10日
    Replying to @TheDesertLynx
    I'm still not sure if creating a "real" L2 is possible at all. The only way to have the same risk profile is to have the same validator set. But if it's the same validator set, it'd be just an extension of the existing L1 (i.e. it directly scales L1 rather than creates an L2).
    9.2K
  • user avatar
    Jason Dreyzehner
    @bitjson
    2019年11月15日
    Just released – CashChannels: Recurring Payments for Bitcoin Cash. They're noncustodial, privacy-preserving, and can be denominated in any currency.
    CashChannels: Recurring Payments for Bitcoin Cash
    From blog.bitjson.com
  • user avatar
    Jason Dreyzehner
    @bitjson
    2024年12月3日
    Since May 2023, Bitcoin Cash contracts have been able to implement: zk-SNARKs, STARKs, BLS signatures, Lamport signatures & hash-based signature schemes, post-quantum cryptography, verifiable delay functions, bulletproofs, ring signatures, confidential transactions (within
    18.7K
  • user avatar
    Jason Dreyzehner
    @bitjson
    2024年11月18日
    While some computations are still impractical (requiring loop unrolling and/or multi-input computation), I think BCH is within 1-2 years of exceeding ETH in contract efficiency across all remaining classes of computation. VM limits were the messiest problem blocking Bitcoin Cash
    Stateless Validation Architecture
In contrast, this proposal preserves the superior user experience and scalability of Bitcoin Cash:
Reliable user experience – users never pay for un-mined, "failed" transactions, user transactions cannot be re-ordered by miners without user consent (via deliberate participation in reorder-able contract schemes), and unconfirmed transactions can be chained such that earlier transactions are guaranteed to be mined if a later transaction in the chain is mined (enabling additional miner-abuse resistance and censorship-resistance strategies).
No-fee contract deployment and superior real-world privacy – User wallets both “deploy” and “destroy” contracts incrementally as part of their usage, rather than calling monolithic, expensive-to-deploy, "global" contracts – improving both overall network throughput and real-world privacy.
Reliably-low fees, even for complex contracts – The per-computation contract validation costs for Bitcoin Cash node operators ...
    14K
  • user avatar
    Jason Dreyzehner
    @bitjson
    2024年12月13日
    Proposing three CHIPs for Bitcoin Cash's 2026 upgrade: loops, function eval, and Pay to Script (P2S). These would make BCH contracts more efficient than ETH, SOL, etc. across some remaining gaps + optimize transaction sizes for zero-knowledge and post-quantum covenants. (1/6)
    user avatar
    Jason Dreyzehner
    @bitjson
    2024年12月3日
    Since May 2023, Bitcoin Cash contracts have been able to implement: zk-SNARKs, STARKs, BLS signatures, Lamport signatures & hash-based signature schemes, post-quantum cryptography, verifiable delay functions, bulletproofs, ring signatures, confidential transactions (within
    9.6K
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