Chain Post
also: TON Chain Post, on-chain post, sealed post
A Chain Post is the immutable form of a Wall post. When a user requests a Chain Post seal, Wall hashes the final post body and metadata (SHA-256), then asks the user's TON Connect wallet to send 1+ TON (their choice of stake; minimum 1 TON, can stake higher for leaderboard ranking) plus ~0.01 TON network gas to Wall's wallet (UQA2Q0Vv81NObzw0d6jK6v9nnmc-cAzSI8kWN27Sl9n92SZp). The TON transaction's payload includes the post's SHA-256 hash — that's the on-chain anchor.
Verification is independent: anyone can look up the TON transaction on tonviewer.com or tonscan.org, decode the payload, hash the post body shown on Wall, and confirm a match. If Wall (or any future operator) tries to silently edit the post, the hash changes and the on-chain mismatch is publicly visible.
The 1+ TON payment is not a refundable smart-contract stake. It is payment for Wall's permanent-storage commitment, the on-chain anchoring transaction (Wall pays the on-chain write fee), and a standing place on the Chain Posts leaderboard sorted by stake. Higher stake → higher leaderboard position. Public on TON explorers, permanent, immutable.
Where Chain Post appears on Wall
- Composer "Seal on chain" action when posting
- Post detail page badge for sealed posts
- Chain Posts leaderboard at /branches (sorted by stake)
- TON explorers (tonviewer.com, tonscan.org) — public on-chain record
- wall.foundation/chain-posts deep technical page
Related terms
Common questions
Can a Chain Post be deleted?
No. Once the on-chain anchor transaction is confirmed on TON, the SHA-256 hash is permanent. Wall cannot remove it; even Wall going offline does not erase it (the hash stays on the blockchain forever, and the post body Wall promised to host remains discoverable via the hash). This is the core "immutable" property.
Can Wall silently edit a Chain Post?
No, not silently. Wall could in principle change what the page at /post/<id> displays, but the SHA-256 hash on the TON blockchain would no longer match the new body. Anyone running a check (compare on-page content hash vs the on-chain hash) would see the mismatch. The verifiability is the protection — not the storage layer.
Why is the minimum 1 TON?
It covers Wall's permanent-storage commitment and the on-chain write fee, and creates an economic floor that prevents spam-grade Chain Post sealing. Higher stakes also rank higher on the public leaderboard at wall.tg/branches, which is a market-driven discovery mechanism.
Is a Chain Post an NFT?
No. A Chain Post is a content-anchor transaction on TON, not a fungible or non-fungible token. There is no marketplace for Chain Posts, no transfer of ownership, no royalty model. The transaction permanently associates the post's hash with the author's wallet address — that's it.