---
title: "The sign-in journey: browser, provider, session and API"
description: "How do sign-in participants hand off and verify identity evidence?"
status: "coming-soon"
language: "en"
canonical: "https://bulnik.dev/en/articles/topics/T02.11/"
topicId: "T02.11"
---

> Coming soon — this article is being prepared. Below are its question, intended outcome, and place in the story.

## The question

How do sign-in participants hand off and verify identity evidence?

## What we will work through

Draw browser, provider and API boundaries while distinguishing sessions from tokens.

## Before you begin

Familiarity with the overview: Authentication, authorization, and sessions: separate responsibilities

- [Authentication, authorization, and sessions: separate responsibilities](/en/articles/topics/T02.01/)