Coin & Chain Guides

Deep dives into individual coins and chains SSP supports.

Each coin or chain SSP supports has its own quirks — UTXO vs. account-based, native multisig vs. ERC-4337, fee dynamics, finality times. This collection covers them one at a time.

Asset moving across a bridge between EVM chains, secured by SSP's two-device signing

Bridging Between EVM Chains from SSP

How bridging EVM chains works, why bridges are a top crypto loss vector, and how to bridge safely from SSP with WalletConnect and 2-of-2.

8 min read
Square cover showing SSP's 2-of-2 on EVM: an extension key and an SSP Key combining into a single aggregated signature for an ERC-4337 smart account.

EVM Multisig the Account Abstraction Way

How multisig works on EVM chains and why SSP builds its 2-of-2 as an ERC-4337 smart account that verifies a Schnorr-aggregated signature.

8 min read
Square SSP cover titled Gas Fees on Ethereum with gas and energy icons on a dark amber background

Gas Fees on Ethereum, Explained for Self-Custody Users

How Ethereum gas fees work for self-custody users: the gas used x gas price formula, EIP-1559 base fee and tip, why failed txs still cost gas, and SSP.

8 min read
Square SSP cover with amber chain icons and the title Using SSP on Polygon, Base, and Other EVM Chains over a dark blue backdrop

Using SSP on Polygon, Base, and Other EVM Chains

One SSP 2-of-2 multisig controls your accounts across Polygon, Base, and every EVM chain. Learn gas tokens, addresses, and pitfalls.

8 min read
SSP Academy square cover: Sending and Receiving Ethereum with SSP

Sending and Receiving Ethereum with SSP

Send and receive ETH in self-custody with SSP: your 0x address, the 2-of-2 co-sign flow, the nonce, gas, and ERC-20 tokens.

8 min read
SSP Academy square cover: Ethereum in SSP

Ethereum in SSP

How SSP holds ETH in a 2-of-2 multisig via an ERC-4337 smart account, and how Ethereum's account model differs from Bitcoin.

7 min read
Diagram of many small Bitcoin UTXO coins consolidating into one larger UTXO

Consolidating UTXOs in SSP

What a Bitcoin UTXO is, how small UTXOs pile up, and when to consolidate them in SSP's 2-of-2 multisig to keep future spends cheap.

6 min read
Privacy-themed cover with hidden-eye, shield, coins and wallet icons for a Bitcoin CoinJoin guide

CoinJoin, Mixing & Bitcoin Privacy in Self-Custody

Why Bitcoin's public ledger leaks information, what CoinJoin really is, and the privacy practices that work with SSP self-custody today.

6 min read
Bitcoin cold storage vault concept with lock, key, shield and database icons in SSP brand style

Bitcoin Cold Storage with SSP Multisig

How SSP's 2-of-2 multisig works as a Bitcoin cold storage vault, why two devices beat one key, and the honest trade-off versus air-gapped hardware.

6 min read
Cover graphic for Taproot and SSP Bitcoin multisig with key, shield, coins and lock icons

Taproot and SSP Bitcoin Multisig

How taproot multisig differs from legacy P2SH and P2WSH, what Schnorr key aggregation changes, and where SSP's 2-of-2 fits today.

6 min read
SSP coin guide cover for Bitcoin fee strategy with coins, lightning, and database icons

Bitcoin Fee Strategy in SSP

Bitcoin transaction fees explained: what sat/vB means, how the mempool sets the price, and how to pick a fee when you send from SSP multisig.

7 min read
SSP article cover for receiving Bitcoin, showing QR code, wallet, coins and shield-check icons

Receiving Bitcoin Into SSP

How to receive Bitcoin in a wallet with SSP: the 2-of-2 multisig address, sharing it safely, change addresses, and verifying funds.

6 min read
Bitcoin logo with the SSP wallet icon, both rendered in the SSP brand palette

Bitcoin in SSP

How Bitcoin works, how SSP holds it via 2-of-2 multisig, how to send and receive, common pitfalls to avoid, and what SSP doesn't do.

6 min read