The Arweave Network is Now Running Succinct Random Proofs of Access (SPoRA)

Breaking down SPoRA

Succinct Proofs of Random Access (SPoRA) is a new type of consensus mechanism for the Arweave network. Until block 633720, Arweave was running a classic Proof of Work (PoW) consensus mechanism, with the additional requirement for blocks to include a reference to past data on the network (a structure critical to the system’s blockweave architecture) — known together as Proof of Access (PoA). PoA consensus for Arweave has, up until February 24, encountered two opportunities that were improved with a new consensus mechanism:

The upgrade to SPoRA

Block 633719 was the last PoA block on the Arweave network before the upgrade to SPoRA began. In order to mine the first SPoRA block, the Arweave dataset was randomly polled and verified over 12 billion times. Block 633720 was generated in a completely decentralized way, without any manual intervention or guidance from the Arweave development team. After the first 10 SPoRA “slow” blocks, the network returned to normal, steady operation.

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The Arweave Project

The Arweave Project

A novel data storage blockchain protocol enabling a permanent serverless web and creating truly permanent data storage for the first time.