Increasing likely that fast IBD will happen entirely in userland before the May 2027 upgrade 🔥
And since Bitcoin Cash restored Bitcoin Script (CashVM), BCH contracts can directly verify STARK proofs – and proofs from yet-to-be-developed proof systems – on-chain, without further consensus upgrades. 🚀
No miner action or consensus needed, with multiple tuned proof options for different use cases (node IBD, offline payment proofs, privacy pools, in-contract chain-state proofs, etc.), post-quantum crypto, and surprisingly easy-to-implement verifiers that are reusable across many kinds of proofs.
E.g. a wallet could pull in a single verifier implementation, then use it for IBD/private balance retrieval, offline payment proofs, shielded BCH/CashToken pools, private DEXs, etc.
If you can compute something directly, you can also create a trustless proof that verifies in milliseconds.
Even better, BCH’s SHA256 Proof-of-Work consensus means that such IBD proofs inherit the BCH chain’s objectivity.
BCH’s IBD proofs can be simply compared by chain work (the proof itself ensures all rules were followed), while proof-of-stake networks need to weigh social signals to choose between chain tips.
This gets even better for BCH as it flips BTC and becomes the dominate SHA256 chain.
DangerHighVoltage111 on
>Increasing likely that fast IBD will happen entirely in userland before the May 2027 upgrade
2 Comments
Copying here:
—
On instant Initial Block Download (IBD) and other uses of Zero-Knowledge Proofs (ZKPs) for Bitcoin Cash (BCH)
https://x.com/bitjson/status/1996611401234727086
—
Increasing likely that fast IBD will happen entirely in userland before the May 2027 upgrade 🔥
And since Bitcoin Cash restored Bitcoin Script (CashVM), BCH contracts can directly verify STARK proofs – and proofs from yet-to-be-developed proof systems – on-chain, without further consensus upgrades. 🚀
No miner action or consensus needed, with multiple tuned proof options for different use cases (node IBD, offline payment proofs, privacy pools, in-contract chain-state proofs, etc.), post-quantum crypto, and surprisingly easy-to-implement verifiers that are reusable across many kinds of proofs.
E.g. a wallet could pull in a single verifier implementation, then use it for IBD/private balance retrieval, offline payment proofs, shielded BCH/CashToken pools, private DEXs, etc.
If you can compute something directly, you can also create a trustless proof that verifies in milliseconds.
E.g. https://github.com/starkware-bitcoin/raito
Even better, BCH’s SHA256 Proof-of-Work consensus means that such IBD proofs inherit the BCH chain’s objectivity.
BCH’s IBD proofs can be simply compared by chain work (the proof itself ensures all rules were followed), while proof-of-stake networks need to weigh social signals to choose between chain tips.
This gets even better for BCH as it flips BTC and becomes the dominate SHA256 chain.
>Increasing likely that fast IBD will happen entirely in userland before the May 2027 upgrade
That would be amazing 💪