Proof of displayUnverified
Ad dispatched to player
Played start to finish?
Screen powered & bright?
Seen by real people?
Playback you can't prove
Your logs say “dispatched.” The advertiser wanted proof it ran.
Disputed invoices & make-goods
For screen owners & media operators
Turn your screens into a verified revenue network.
Run your screens, prove every play actually displayed, and charge for your inventory on evidence, not estimates. One platform: a Smart DOOH Player, patented Proof-of-Display, and a commercial CMS.
Patented Proof-of-Display · UK & USJust running screens in your own venue?Start with the PlayerNot ready to talk?See a sample Proof-of-Display report
Every play
Independently verified on Harvester screens
<2 min
To onboard a new screen
3-in-1
Player, Proof-of-Display & CMS in one platform
One platform. Every kind of location.
ForecourtsTransit hubsRetailGyms & leisureRoadsideShopping centresForecourtsTransit hubsRetailGyms & leisureRoadsideShopping centresForecourtsTransit hubsRetailGyms & leisureRoadsideShopping centresForecourtsTransit hubsRetailGyms & leisureRoadsideShopping centresForecourtsTransit hubsRetailGyms & leisureRoadsideShopping centresForecourtsTransit hubsRetailGyms & leisureRoadsideShopping centres
The operator's problem
Advertisers pay for their ad to run. You can't prove it did.
A scheduling log says an ad was sent. It can't prove it played, in full, on a screen that was switched on and seen. That gap is where your revenue leaks away.
All screens reporting
Fleets managed by hope
Black screens run for days. You hear about it from the client.
Silent downtime, lost trust
Same premium site · ad rate
Verified
Premium rate
Unverified
Discounted
No proof, no premium.
Inventory priced as a commodity
No proof, so premium sites sell at unverified rates.
Premium sites, discount rates
Every one of these comes back to the same gap.
See how Vojo closes itThe fix
Three products. One platform. Every play proven.
Each does one job exceptionally well, and together they close the loop, from the screen on the street to the invoice on the advertiser's desk.
01Software + optional hardware
Smart DOOH Player
Screens that run themselves, and recover without a site visit.
A drop-in player built for the field. It keeps playing from local cache when the network drops, heals itself if it freezes, and restarts on its own after a power cut. You manage all of it from your desk.
- Runs on Vojo hardware, or a cross-platform build for your own
- Plays video, image and HTML, cached locally so it runs fully offline
- Self-heals from freezes and restarts itself after a power cut
- Push content, reboot and diagnose any screen remotely
- Weighted ad mode for paid priority and loop budgeting
- Optional programmatic mode that fills inventory from partner ad-servers
Uptime you never have to babysit.
View technical specification02Proof-of-Display (PoD)
Vojo Harvester
Patented · UK & USHard proof of what actually hit the glass, not what the schedule hoped.
The patented Proof-of-Display. An independent sensor watches the screen itself, fingerprints what actually displayed, and ties it back to the campaign. Every play becomes evidence you can put in front of an advertiser.
- Patented sensor technology, granted in the UK and US (EU pending)
- Independent verification that measures the screen, not the playlist
- Works with any player or signage system, no Vojo Player required
- Fingerprint-matches real display to each scheduled campaign
- Catches black screens, freezes, wrong content and downtime
Win the dispute. Charge the premium.
Explore the Harvester03Platform
Commercial CMS
The control room that sells your network on proof.
Campaigns, scheduling, fleet health and proof in one portal, built for selling DOOH. Reports carry verified delivery behind every number, so your figures do the closing.
- Manage campaigns and schedules across every screen and site
- See every player and screen at a glance with live fleet health
- Advertiser-grade reporting backed by Proof-of-Display
- Play targets, pacing and verified delivery in every report
Proof behind every report you send.
How it works
Three pieces. One verified loop.
Each Vojo product does one job well. Together they close the loop from schedule to proven play to paid invoice.
- 01
Schedule in the CMS
Build campaigns and push content to any screen in your network from one portal. The Smart DOOH Player picks it up, online or off.
- 02
Play on the Smart Player
The player runs your schedule on the screen, rides out outages, and reports playback to the platform in real time.
- 03
Prove with the Harvester
The Harvester independently verifies what actually displayed and matches it to the campaign, generating Proof-of-Display.
- 04
Report on evidence
Verified delivery flows into advertiser-grade reports, so you can charge a premium and stop absorbing the disputes.
A continuous, verified loop
Proof
Proof you can hand to an advertiser.
Patented, independent verification: your advertisers don't have to take your word for it, and you don't have to take the schedule's.
Vojo made the whole thing effortless. Brilliant team, really pleased.
Patented
Patented Proof-of-Display, granted in the UK & US (EU pending).
Every play
On Harvester-equipped screens, independently verified against the campaign.
Independent
Measures the screen itself, not the playlist.
See the proof an advertiser gets
A real sample Proof-of-Display report, with verified plays, fingerprint matches and uptime.
Pricing
The platform's free. Pay by the device.
No seats, no tiers, no setup fees. Player licences run from £15 a month per screen on a 24-month term, with Harvester licences priced in your quote. Proof costs a fraction of the premium it defends, and cost only grows when your network does.
£0
Free platform
the full CMS, forever
Monthly licence
per device you deploy · 24-month term
Hardware
if needed · volume & term
Your network
Price it for your network
Tell us your screen count and we'll build a quote, with volume and term pricing included.
Free platform includesUnlimited users, sites & advertiser accountsCampaigns, scheduling & content managementLive fleet health monitoring & alertsAdvertiser-grade Proof-of-Display reports
Licence rates apply on a 24-month initial term with no separate hardware charge. Shorter terms carry hardware costs, set by your device volume and detailed in your quote.
What it's worth
Put a number on verified inventory.
Move the sliders to your own numbers and see what verified inventory is worth on a standard CPM model. Illustrative, not a quote: your assumptions, your figure.
Your network
30
Players you run
60,000
Audience impressions per screen, per month
50%
Share of your impressions you actually sell
£8 / 1,000
What advertisers pay per 1,000 impressions
10%
Premium that proof lets you charge
Annual verified revenue
£86,400/ yr
Across 30 screens at 50% sell-through, with every play Harvester-verified, so it stands up to an advertiser.
Proof can defend a premium on top, about £8,640/yr at the 10% uplift you set.
Get a tailored quoteIllustrative, based on the assumptions you set.
Start anywhere
You don't have to sell advertising to start.
Start with the screens. Add proof and a sales engine when you're ready. Same player, same platform, nothing to rebuild.
01Start here
Smart DOOH Player
Run your screens
Reliable, self-healing signage on any display in your venue.
02
+ Vojo Harvester
Prove every play
Turn on independent Proof-of-Display the day you want verification.
03Revenue
+ Commercial CMS
Sell your network
Open verified inventory and sell on evidence.
For advertisers & agencies
Buying DOOH rather than selling it?
The Vojo Wrapper is content-level verification that ships inside your creative, so your campaign measurement travels with the ad across every network it runs on.
- Rides inside your creative
- Any network, any player
- Nothing for operators to install
FAQ
Questions screen owners ask
No. The Smart DOOH Player runs on screens you already own (Vojo hardware, or a cross-platform build for yours), and the Harvester attaches to verify them. Vojo is the operating layer, not new glass.
Still have a question about your network?
Talk to us30-minute demo
See your network, verified.
Book a 30-minute demo. Bring your screen count and we'll show you the Player, the Harvester and the CMS working as one system, plus what verified inventory could be worth to you.
Free platformPatented Proof-of-DisplayNo obligation