GoUncle
A Blockchain Of, By, For Modest Computers

GoUncle is a blockchain for permissionless participation by modest computers. As in GHOST (Greedy Heaviest Observed SubTree, in successful implementation and use by the Ethereum blockchain’s Proofs-of-Work version), GoUncle blocks also record the public-key identities of some temporary forking blocks finders who are dearly called “uncles” (poorly named “orphans” in Bitcoin). While GHOST uncles are for saving PoW electricity, GoUncle assigns jobs for its uncles to do. In a payload distillation job, uncles choose from block payloads only the data logs complying with the blockchain database (DB) policy to announce and hope surviving the blockchain gossip protocol. With uncles distillations, the blockchain address, aka height, for a no-longer-need-to-trust block, is deterministic right upon the block appending the blockchain. These deterministic addresses can index partition the distributed DB into small files to store in nowadays over provisioned external storage even for a low-cost computer. The index partitioned DB files can be fast operable for input, output, lookup, insert, update, manage, …, etc., as a standard DB management system (DBMS) can. It is this very property of fast operable DBMS even by a modest computer that secures the blockchain DBMS by a hop-by-hop firewall among vast {\em semantics gossipers} who each looks up the local DBMS to judge either writing correct uncles distillations to the DB and forwarding them on, or discarding incorrect ones, both processed quickly. The hop-by-hop firewall works exactly as correctness probability amplification by repeated execution of a randomized probabilistic (RP) algorithm, and the GoUncle work establishes:

$$\mbox{Blockchains} \subset \mbox{RP}.$$

Also to be manifested in the present work are more general blockchain consensus layer computations that uncles can and should execute and disseminate the execution output as No-Spam and No-Single-Point-of-Failure (No-SPOF) set of blockchain servers.

Key Words and Phrases:  Easy Permissionless Blockchain.  Blockchain Uncles as No-Spam and No-SPOF Servers.  Blockchain Addressable Computers for Consensus Computations.  Semantics Gossip as Hop-by-Hop Firewall for Blockchain.  Blockchain as a Randomized Probabilistic (RP) Algorithm.  Permissionless Client-Server Architecture.