Topic
CelestiaIntermediateA DA layer guarantees rollup data was published. Celestia erasure-codes blocks into a 2D square, so light nodes sampling a few random shares catch withholding; fraud proofs catch bad encoding.
#cryptography#nodes#scaling
ArweaveBeginnerYou pay once into an endowment sized for about 200 years of storage, betting on falling disk costs, and mining requires holding data. Prices move with AR, most uploads go through bundlers, and nothing can be deleted.
#basics#privacy#storage
FilecoinIntermediateProviders seal data into sectors, prove it once with PoRep and then daily with WindowPoSt, backed by slashable FIL collateral. Proofs cover storage, not retrieval; use an onramp unless you have large data and DataCap.
#consensus#cryptography#storage
IPFSBeginnerA CID is only an address; content survives only while someone pins it. Use CIDv1 and ipfs:// URIs, pin with at least two independent providers, keep a CAR backup, and test retrieval first.
#dapp-development#nfts#storage
