Arweave
Permanent storage you pay for once: the endowment is on-chain, and the data is retrievable years later — that is the test.
Issuers of a listed coin may display the seal. See use of the seal.
A REGISTER OF RECORD
Permanent storage you pay for once: the endowment is on-chain, and the data is retrievable years later — that is the test.
Issuers of a listed coin may display the seal. See use of the seal.