postschain.com

What It Is

Postschain is a content publishing service that “writes posts to the blockchain.” Operated by permanentblock, LLC, it is currently built on BNB Smart Chain. It is not an exchange, wallet, or DeFi protocol; rather, it is closer to an on-chain commenting layer for Web2 websites: users can leave comments on any webpage via the website or Chrome/Firefox extensions, with the content permanently recorded on-chain.

Core Analysis

In terms of assets and trading, Postschain does not offer trading, swaps, trading pairs, or asset custody. The documentation only states that posts are stored on BNB Smart Chain, and says the smart contracts may be replicated across multiple chains in the future. For KYC, no real-name verification process is disclosed, though the Terms of Service require users to be at least 18 years old. On security, the platform emphasizes that it “does not store personal data,” relies on the blockchain as a shared database, and supports anonymous posting. However, there is no visible disclosure of a smart contract audit, bug bounty, insurance, cold wallet setup, or other security practices commonly seen on crypto platforms. On compliance, the terms list permanentblock, LLC as the operating entity, with an address in Delaware, United States, but no crypto-related licenses are disclosed.

Pricing and Payments

Pricing is straightforward: Basic costs $1 for 1 credit, which allows 1 post; Premium costs $10 for 10 credits. Viewing posts is free, while posting requires at least 1 credit. The platform explains that the fee exists because writing state on-chain consumes validator/miner resources, but it does not clarify whether gas fees are absorbed by the platform or charged separately, nor does it disclose specific payment methods. If a post has not yet been written to the blockchain, users can request a refund by contacting the listed email address or X account.

Pros and Cons

The advantages are its clear positioning, low barrier to entry, availability via both the website and browser extensions, and a more integrated viewing experience on platforms such as X, YouTube, and Twitch. On-chain immutability makes it suitable for comment notarization, public feedback, and long-term records. The drawbacks are also clear: once content is on-chain, it cannot be deleted, which may create privacy, reputational, and compliance risks; all posts are publicly visible, making it unsuitable for sensitive information; security and compliance disclosures are limited; and there is currently no mobile app.

Who It’s For and Access from China

Postschain is best suited to Web3 users who want on-chain proof of content, anonymous expression, or cross-site comment records. It is not suitable for users who need asset trading, fiat on/off-ramps, leverage, or yield products. The available information does not state whether it is accessible from mainland China, and payment channels are also unknown. If access or payment is restricted, alternatives to consider include Mirror, Paragraph, Farcaster, Lens Protocol, or content publishing tools based on IPFS/Arweave.