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oc · chat
§ signin

sign in to oc chat.

Bitcoin wallet (BIP-322) or email + one-time code. No password to forget. Same identity across every .ochk.io subdomain — and the address you sign in with is your inbox.

§ bitcoin wallet

Sign in with any BIP-322-capable Bitcoin wallet (Sparrow, Xverse, Leather, UniSat, Alby, OKX, Phantom). Paste your address, click sign — your wallet extension prompts for a one-time signature on a short challenge. The address becomes your OC identity. Private key material never leaves your wallet.

> Detection picks the first installed BIP-322-capable extension. Address is the one your wallet will sign for.

OC Chat is a consumer of the OrangeCheck cross-subdomain session minted at ochk.io. The auth API is family-CORS-enabled so this page can call it directly — no redirect, no popup, no tab juggling. Once your wallet signs (or OTP verifies), the .ochk.io cookie lands and every other family product recognises you too.

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