Thanks, Chris. Before I begin, I'd like to remind everyone that we have posted a presentation to our Investor Relations website that includes supplemental financial information to accompany today's call. As Tim discussed, we had a very strong start to the year, with Q1 results coming in towards the high end of our guidance, or better, across all key metrics. Many of the trends that drove our strength in 2023 continued into the first quarter of 2024. Most notably, the progress we've made in the last year towards our vision of autonomous advertising is resonating with both existing and prospective customers. The AI-based features and products that we've rolled out in recent quarters are driving both increased efficiency and higher return on ad spend for our customers. In turn, our customers are consolidating more of their ad spend onto our platform. We are also having more discussions than ever with large potential customers, leveraging these early success stories. We intend to continue investing to further drive our innovation engine. And as Chris mentioned, we have some exciting new AI-based features and products coming in the months ahead. In terms of customer growth, during the quarter, we continued to scale our existing customers while also adding new, larger mid-market customers to our platform. On a trailing 12-month basis, the number of customers generating over $1 million of contribution ex-TAC increased by nearly 20% on a year-over-year basis, and the number of percent of spend customers generating over $500,000 of contribution ex-TAC increased more than 30% on a year-over-year basis. Moreover, contribution ex-TAC across our top 100 customers grew an impressive 25% on a trailing 12-month basis as of the end of Q1. These positive customer trends have enabled us to continue outpacing overall market growth. With that said, I'll now turn to our results for the first quarter. Revenue for the quarter was $53.4 million, an increase of 28% versus the prior year period and above the high end of our guidance range. Contribution ex-TAC for the quarter was $34.1 million, an increase of 22% versus the prior year and above the midpoint of our guidance range. In terms of customer verticals, we continue to see strong momentum in the quarter across our retail, consumer goods, and travel customer verticals. Our public services vertical continued to perform exceptionally well during the quarter, as did our financial services and business services verticals. In terms of channels, CTV and streaming audio continue to be the most meaningful drivers of growth in the first quarter. CTV grew over 50% on a year-over-year basis and represented over 40% of total spend on the platform, while streaming audio achieved record spend levels in the quarter, nearly doubling on a year-over-year basis. Streaming audio represented 10% of total spend on the platform in Q1. We continue to benefit from the traction we are having with customers adopting our Household ID across these high engagement cookieless channels. Our Direct Access offering has also been an important driver of our CTV growth, given the increased efficiency and performance that provides advertisers. In terms of formats, video, which includes CTV, represented 60% of total spend on our platform in the quarter. Turning now to operating expenses for the quarter. Our non-GAAP operating expenses totaled $31 million in Q1, representing an increase of 9% over the prior year period and 5% over the prior quarter. We continue to drive efficiencies internally, while remaining focused on making strategic investments in our business, specifically around our technology and sales teams, to best position ourselves for long-term market share gains and increasing profitability. For the quarter, we generated adjusted EBITDA of $3.1 million, above the high end of our guidance and representing an increase of $3.5 million from the prior year period. Adjusted EBITDA margin as a percentage of contribution ex-TAC was 9% for the quarter, an improvement of 10 percentage points from the prior year period. For the first quarter, non-GAAP net income, which excludes stock-based compensation and other items, totaled $1.3 million, which compares to a non-GAAP net loss in the prior year period of $1.8 million. Non-GAAP earnings per share per Class A share totaled $0.02 in the first quarter, which compares to a loss of $0.03 in the prior year period. In terms of share count, we ended the quarter with 63.4 million shares outstanding, consisting of 16.4 million Class A shares and 47 million Class B shares. We ended the quarter with $206 million in cash and cash equivalents. We had $227 million of positive working capital and no debt at quarter end, and we continue to have access to a $75 million undrawn credit facility. In Q1, we also generated $3.8 million of cash flow from operations. In conjunction with our earnings release today, we also announced that our Board has authorized an open-ended share repurchase program of up to $50 million of the company's common shares. This program reflects our continued commitment to enhancing shareholder value and our confidence in the long-term prospects of the company. Turning now to our outlook. We expect that our momentum with customers leveraging our Household ID technology, as well as our new AI-related products and features will continue to drive increasing share in the large and growing programmatic market. We remain very encouraged by the spending patterns we are seeing with our customers and by our large pipeline of highly scalable advertisers, leading to increased optimism about our prospects moving forward. So with that backdrop, for the second quarter of 2024, we expect revenue in the range of $63.5 million to $66.5 million, representing a year-over-year increase of 14% and a quarter-over-quarter increase of 22% at the midpoint. Contribution ex-TAC is expected to be in the range of $40 million to $42 million, representing year-over-year growth of 22% and quarter-over-quarter growth of 20% at the midpoint. Non-GAAP operating expenses are expected to be between $32 million and $33 million in Q2, representing a year-over-year increase of 21% and a quarter-over-quarter increase of 5% at the midpoint. We expect adjusted EBITDA to be in the range of $8 million to $9 million, which represents a year-over-year increase of 25% and a quarter-over-quarter increase of 176% at the midpoint. And finally, we expect an adjusted EBITDA margin as a percentage of contribution ex-TAC of 21% at the midpoint. One last point I'd like to make relative to the Q2 guide. At the midpoint of the guide, Q2 would represent the fourth consecutive quarter of 20-plus percent growth in contribution ex-TAC. Finally, I'd like to make a few comments relative to our expectations for the full year. As we've said before, in 2024, we expect contribution ex-TAC to grow faster than the overall market, continuing to expand our market share, especially in the mid-market. We also expect to continue benefiting from the growing customer adoption of our newer products, such as AI Bid Optimizer, our Advanced Reporting Solutions, and the Viant Data Platform, which are driving incremental revenue and contribution ex-TAC. We expect to similarly benefit from new products launching in the second half of 2024, including AI Bid Optimizer 2.0 and Vyant Chat with Data. For the year, we also expect contribution ex-TAC to grow faster than non-GAAP operating expenses, driving incremental adjusted EBITDA and increased adjusted EBITDA margins. In closing, we believe our investments in our platform and technology have positioned us extremely well to continue driving growth and profitability in the quarters ahead. We have a unique opportunity to service a scaling customer base of mid-market advertisers who recognize the value of our Household ID technology and AI-based solutions. Our strong results in the first quarter demonstrate that our strategy is working with customers, and we are capitalizing on the strong tailwinds for programmatic advertising. We're excited about our momentum and the opportunities ahead of us. And with that, I'll turn it back to the operator for questions. Operator?