What if you just want to publish a message with finalized ordering and archive-backed retrieval, without deploying a contract or paying per-byte gas fees?
Obsidian extends Ethereum with a dedicated messaging layer that operates alongside the traditional transaction system. Messages bypass the EVM entirely, reducing overhead and enabling on-demand data publishing.
Messages stored in the blockchain itself, not hash references.
Zero gas fees for basic messages using VDF (Verifiable Delay Function).
On-chain commitments plus archive retrieval, verified by consensus.
Use MetaMask, Hardhat, ethers.js. All your favorite tools.
// Deploy a contract first
contract MessageBoard {
event Message(address sender,
string content);
function post(string content) {
// Costs gas for every byte!
emit Message(msg.sender, content);
}
}Requires Solidity knowledge, contract deployment, and gas fees for every message.
// Just send a message
await provider.send(
"eth_sendMessageBlob",
[{
from: myAddress,
data: "0x" + toHex("Hello"),
signature: sig,
nonce: nonceHex,
chainId: "0x1a5"
}]
);No contract needed. No deployment. No gas fees for standard messages.
App creates payload, wallet signs with chainId and nonce.
Send via eth_sendMessageBlob RPC to any node.
Routes to PM (paid) or SM (feeless), assigned to lanes.
Added via Silica Protocol, finalized on-chain and retrievable through archive nodes.
| Platform | Deletable | Editable | Survives company death |
|---|---|---|---|
| Twitter / X | Yes | Yes | No |
| AWS S3 | Yes | Yes | No |
| IPFS | If unpinned | No | Maybe |
| Obsidian | No | No | Yes |
Build decentralized social apps where users truly own their content. Posts, comments, and profiles gain finalized on-chain ordering with archive-backed retrieval.
Issue verifiable credentials, certificates, and attestations that can never be revoked or tampered with.
Create immutable logs for compliance, legal records, and enterprise audit requirements.
Publish articles, journalism, and creative work that can never be censored or taken down.
Store sensor data, device telemetry, and machine logs with cryptographic proof of origin.
Anchor identity claims, reputation scores, and profile data to an immutable record.
Deploy your first message in minutes. No smart contracts required.