Open channel that anyone can discover and join. Messages are visible to all participants.
For organizing your channels locally.
Channel appears in Explore
Only you can send messages
LogStore uses optimized caching. Data may persist indefinitely but retention is not guaranteed.
Pombo offers three channel types, each with different privacy and access control mechanisms. All channels use verified ID and decentralized infrastructure.
Open channels that anyone can discover and join. Perfect for communities, announcements, and public discussions. Everything is visible to all participants.
Protected channels where messages are encrypted with a shared password. Only users who know the password can decrypt and read messages. Easy to share access with friends or team members.
Blockchain-verified membership using smart contracts. Access is controlled on-chain, and each member must be explicitly authorized by their wallet address. Ideal for high-security channels requiring cryptographic proof of membership.
Pombo offers two storage options for message history. Both provide equal privacy and security — all data flows through the Streamr Network's encrypted P2P transport.
Official storage cluster operated by Streamr. Messages are stored with a configurable Time-To-Live (TTL) from 1 to 365 days. After expiration, messages are automatically purged.
Decentralized middleware by Usher Labs that bridges Streamr's real-time transport with Arweave's permanent storage via KYVE consensus. Broker Nodes (run by Usher Labs, but open for anyone to operate) cache data and route to Validators for archival on the Permaweb. Best-effort retention — data persists in cache but long-term permanence depends on network conditions.
Stored locally, only visible to you
One-time setup — Creating your DM inbox requires a small gas fee. Once created, there are no additional costs.
Anyone with your Pombo/Ethereum address can send you direct messages. You can also message any address that has a DM inbox.
LogStore uses optimized caching. Data may persist indefinitely but retention is not guaranteed.
Ask the channel creator for the channel ID
This name is stored locally only
Helps organize your channels locally
Share this link with anyone you want to invite to the channel.
Push notifications use a "Blind Relay" — the server that wakes your device cannot determine recipients. It only sees anonymous tags with no link to identities or channels.
Notification tags use a deliberately small hash (1 byte = 256 possible values) to ensure K-anonymity even with few users. With 1,000 users, each tag matches ~4 people. As the user base grows, the tag size scales up. You're always hidden in a crowd.
Each wake signal requires Proof-of-Work (~200ms per recipient). Negligible for normal use, but makes spam prohibitive — a spammer would need hours of computation to flood the network.
The relay is fully open-source. Anyone can run their own instance for additional trust guarantees.
This will permanently delete the channel from Streamr. All participants will lose access.
This action cannot be undone.
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