01
A photo set.
Three high-res angles of the shirt on stage — front, back, full pitch. Shot post-event, raw + edited, sent within 72 hours.
Live auction · closes May 8, 2026
Three surfaces. One pitch.
Highest bid wins.
Three real auctions on the surfaces I'll actually use on demo day. Front and back of the t-shirt I'll wear on stage, plus a sponsored slide in the deck I'll present. Bid in USDC. Top bid takes the moment. Proof of placement settles on-chain.
№ 01 · Spring edition
Bid · Settle · Place · Prove
Bids
0
Volume
0USDC
Avg bid
0USDC
Bidders
0
The stakes
What you're actually buying.
Three places your logo shows up if you win — once in the room, again in the recap, and on-chain forever.
- 01On stage
Seen by judges and the room.
The shirt is worn during the live pitch at demo day. The slide projects behind me for the duration of the talk.
- 02In the recap
Embedded in the demo video.
The pitch is recorded, edited, and posted publicly. Your placement lives inside that footage long after the room empties.
- 03On-chain
Permanent proof of placement.
Every winning bid is settled in USDC and pinned on Solana. A signed receipt anyone can verify — forever in the book.
№ 01Physical surface · Apparel · Front
5d 08h 03m3D · drag to rotate · front
The t-shirt I'll wear on the pitch.
Front-center placement on the shirt I'll wear when I walk on stage at demo day. One pitch, one shirt, one logo. Photographed during the talk, pinned on-chain afterwards as permanent proof of placement.
Slots
1
Floor
5USDC
Top bid
—
Physical specs
- ColorNavy #1a1a2e
- MaterialPremium cotton
- PrintDTG · full color
- Front slot25 × 20 cm
- Back slot22 × 18 cm
- QRLower back → rentl.dev
№ 02Physical surface · Apparel · Reverse
5d 08h 03m3D · drag to rotate · reverse
The back of the same shirt.
The reverse panel of the same shirt. Visible whenever I turn to the deck, walk between cameras, or stand in the post-pitch lineup. One big mark on the back, your brand on every angle that isn't head-on.
Slots
1
Floor
5USDC
Top bid
—
№ 03Digital surface · Pitch deck
5d 08h 03mSlide 01 / 12Rentl pitch · Spring
This pitch is sponsored by
[ winner logo ]
rentl.dev
live
A sponsored slide in the pitch.
A dedicated frame inside the deck I'll present on stage. Shown to judges live, posted to social with the recap, embedded in the demo recording. The winning logo lives in the pitch for the entire judging cycle.
Slots
1
Floor
5USDC
Top bid
—
The book
Live leaderboard.
The book is empty.
Be the first to place a bid on a surface.
What you actually get
Four things, delivered.
Winning a slot isn't just a moment on stage. Each bid resolves into something concrete you can hold, share, and prove.
02
Social posts.
A recap thread on X tagged with your handle. A dedicated post per winning surface. Pinned on the Rentl account for the cycle.
03
On-chain receipt.
A signed transaction on Solana with your bid, slot, and brand name. Verifiable forever. Linked from the public leaderboard.
04
Listed in the book.
Your row stays in the leaderboard permanently. № 01 of the spring edition is a record only the first cohort can hold.
How it works
Four steps, end to end.
- 01
List two surfaces
A t-shirt and a pitch-deck slide go up for open auction.
- 02
Bid in USDC
Anyone can bid. Highest amount leads. Live, transparent.
- 03
Top bidder wins
When the timer hits zero, the leading bid takes the surface.
- 04
Place & prove
The ad is placed. A permanent proof is written on-chain.
The bigger picture
Imagine this for any surface. Event banners, stream overlays, podcast intros, conference booths, vehicle wraps — priced by the market, settled on-chain, with proof of placement.
Built solo for Solana Frontier · Superteam Balkan
These three auctions are the proof. If the demand is there, the next edition opens with ten surfaces, then a hundred, then any wall, fence, or screen anyone wants to put a price on. Read the questions if you're thinking about a bid.
Questions
Before you bid.
Short answers to the things bidders ask most. Anything else — DM Rentl on X.
What happens if I get outbid?
Your bid is released — nothing is held in escrow. You can come back and bid again any time before the auction closes. Only the leading bid at zero takes the surface.
What format should my logo be in?
A vector SVG, or a 1024 × 1024 PNG with a transparent background. We email the upload link 48 hours before the print deadline. White-on-navy looks best on the shirt.
Currency, network, fees?
USDC on Solana. No platform fees on the bid itself. Network fees are a few cents — paid by the bidder at settlement.
When does the auction close?
See the live countdown at the top. Bidding locks 48 hours before the event so we have time to finalise artwork and print the shirt.
Is this on-chain?
Bidding is form + database — fast, no wallet needed. Settlement of the winning bid is on-chain: a signed Solana transaction with the slot and brand, pinned as permanent proof of placement.
How will I know I won?
Email or DM within an hour of close, with the next steps (logo upload, on-chain receipt, photo schedule). Winners are also stamped at the top of the public book.
Refunds?
If we can’t deliver placement for any reason — flight cancelled, event moved, judges veto your logo — your bid is fully refunded in USDC, no questions.
No walletNo escrowNo spam
Just a form and a database. The hard part is the auction, not the plumbing.