Self-Custody Explained
Where Is Your Crypto Actually Stored? What a Hardware Wallet Really Holds
Main Takeaway: Your crypto is stored on the blockchain, not inside any wallet. What a wallet holds is the private key that authorizes movement from your addresses. The useful question is therefore where that key lives and what can reach it. A hardware wallet answers that question by keeping the key on a dedicated chip, separate from the phone or computer you browse with. Quick Reference Term What it means Blockchain A public ledger, copied across thousands of independent computers, that records which address controls which balance. Address A public identifier that receives funds and appears on the ledger. Sharing an address is safe. Private key The secret value that authorizes a transaction from an address. Whoever holds it can move the funds. Recovery phrase 12, 18, or 24 words, defined by the BIP39 standard, that regenerate the private keys for a wallet on any compatible device. Secure element A dedicated chip built to hold secrets and perform signing, rated under...
Can a Seed Phrase Be Guessed or Brute Forced?
A correctly generated BIP39 seed phrase carries 128 to 256 bits of entropy, far outside brute force range. Three documented failures since 2023 all trace back to a broken generator.
How Crypto Cards Hold Your Money (and What Happens When an Issuer Shuts Down)
Crypto cards differ where it counts, which is who holds your balance when the card is idle. Prepaid, exchange-linked and real-time debit models compared, with July 2026 as the test...
Should You Store Your Seed Phrase in a Bank Vault?
A bank vault can hold one copy of your seed phrase. Here is how to use a safety deposit box without making it your...
What Is a Secure Element Wallet? How the Chip Guards Your Keys
A secure element wallet keeps your private keys inside a certified tamper-resistant chip, so your phone stays out of the key.
Is a Hardware Wallet Safe? What It Protects, and What It Does Not (2026)
A hardware wallet is safe from remote theft, the attack behind most crypto loss, because the keys stay offline. But safe is not invulnerable....
Cold Storage for Long-Term Crypto Holding: A Plain Guide (2026)
Cold storage is the right home for long-term crypto. What holding for years actually requires: a device that lasts, a backup that outlasts it.
Is NFC Safe for Crypto? Inside Tap-to-Sign Architecture in 2026
Main Takeaway: NFC is safe for crypto when the wallet is built around a certified secure element that holds the private key on the...
How to store crypto offline: a plain guide to cold storage
Storing crypto offline, known as cold storage, keeps your private keys off the internet where remote attacks cannot reach them. Here is what it...
What is an NFC cold wallet? How tap-to-sign works
An NFC cold wallet signs crypto when you tap a card to your phone — the private key stays sealed in a certified secure-element...
What Is Polymarket? Prediction Markets, Explained
Polymarket turns real-world questions into tradable markets where prices read as probabilities. Here is how it works, and how Predict in the ELLIPAL App...
How to Back Up a Hardware Wallet: 4 Methods (and Which One Fits You)
Backing up a hardware wallet means protecting your recovery phrase. Here are 4 backup methods — paper, steel, distributed copies, and backup cards —...