Echocoin: Live testnet, open sourceBitcoin's proof-of-work solves one problem (making history rewriting expensive) but wastes energy and centralizes block production into pools.
Echocoin replaces it with two mechanisms:
VDF (Verifiable Delay Function) -- each block requires a sequential computation that takes ~2 minutes of real elapsed time regardless of hardware. Unlike PoW, parallelism doesn't help. The chain is its own clock.
Proof-of-Burn -- block-building rights are weighted by coins destroyed on-chain over a rolling 500-block window. A node that burns more has a lower score and wins more slots. A botnet that refuses to burn real coins cannot produce competitive scores regardless of instance count. Burn weight is address-specific and non-transferable, so pools offer no structural advantage.
The combination closes the main attack surface of each:
VDF alone is vulnerable to Sybil attacks (spin up thousands of instances at near-zero cost); PoB alone has the early-burner problem. Together they require both real elapsed time and real economic commitment.
Status: live testnet, ~271 blocks. v1, not battle-tested. Small codebase, readable in an afternoon.
Whitepaper: https://github.com/Vic-Nas/echocoin-core/blob/main/docs/whitepaper.mdLive node / explorer: https://flash.cyprus-draco.ts.net/Source: https://github.com/Vic-Nas/echocoin-coreHappy to discuss the consensus mechanism, attack vectors, or implementation tradeoffs.
For the releases, the appimage works fine but I still have some dll problems with the windows executable.
