Avengers · Wakandans · New Avengers
The home-team crowd of repeat watchers, opening-night loyalists and the loudest lobby noise. "Wakanda Forever" chants in the queue. Highest base flow.
Phase Six · Multiverse Saga · Demo
DoomsdayCinema
When three universes of fans collide on one tentpole opening night, your multiplex becomes a multiverse. Plug in the affixio SDK and monitor every zone with signed yes/no proofs, from the lobby to IMAX and concessions to the VIP Latveria Lounge.
RDJ · Doctor Doom
Earth-616 Avengers
Earth-828 Fantastic Four
X-Men crossover
Secret Wars setup
IMAX tentpole
The threat
Three universes of moviegoers. One box office.
Avengers: Doomsday sets heroes from three universes on a collision course with Doctor Doom. Your cinema feels the same collision at the door, with Avengers faithful, Fantastic Four first-timers and returning X-Men fans all surging the same foyer. affixio turns that chaos into a clean, provable flow.
Fantastic Four
First-family fans arriving fresh from the Baxter Building. "It's clobberin' time" at the concessions stand. New spend, slower queue discipline.
Original X-Men
The returning mutant faithful, Krakoa-era cosplayers with high midnight-show demand. "Do you smell what the multiverse is cookin'?" VIP lounge appetite.
The arsenal
Plug in affixio. Prove every gate.
One Node.js 20 SDK from npm proves eligibility on the host that holds the record, which is your cinema's own systems. No personal data parked on someone else's stack, just signed yes/no results with evidence digests.
Prove on your host
The SDK runs where your point-of-sale and access control already live. The eligibility result never leaves your network unless you opt in.
Yes / no decisions
Every zone returns a clean YES or NO, whether you open the extra screen, throttle sales or hold the VIP lounge. Each one is a signed, auditable proof.
ML-DSA-65 on every proof
Post-quantum signatures by default. HMAC for speed, optional UltraHonk when you need a heavier zero-knowledge beat.
Live crowd-flow meters
Aggregate throughput across zones in real time and watch the heat move from lobby to screen as the trailers roll.
Evidence digests
Each proof carries a SHA-256 evidence digest so an auditor can verify a decision was made without replaying personal data.
Licence-only by default
Install affixio from npm, check the licence, and ship. Remote sync is an explicit opt-in and never the default.
Live ops console
Control the multiplex. One gate at a time.
Each zone is a yes/no decision. Tap a gate and affixio issues a signed proof, the zone's flow meter moves, and the aggregate ring updates. Try it, then watch the proof log stream below.
Lobby & Box Office
Awaiting gateOpen a second box-office desk to absorb the Earth-616 surge?
Flow0%
Concessions Stand
Awaiting gateReroute Fantastic Four fans to a mobile popcorn pod?
Flow0%
IMAX Doom Hall
Awaiting gateHold the doors until the prior show clears to protect the tentpole experience?
Flow0%
VIP Latveria Lounge
Awaiting gateOpen the VIP lounge to returning X-Men midnight attendees?
Flow0%
Midnight Secret Wars Show
Awaiting gateAdd a second midnight screen for the Secret Wars setup crowd?
Flow0%
Sentinel Security Gate
Awaiting gateThrottle entry when the foyer hits capacity to keep flow safe?
Flow0%
No spoilers past this point
Lock the spoilers. Keep the stingers secret.
The fandom's biggest opening-night rule: nobody spoils the post-credit tag. affixio proofs each screen hall as spoiler-locked, sets the stinger count, and measures whether the crowd actually stayed for the credits. Because "did you stay?" is half the ritual.
Doom Hall · IMAX
Spoilers openFlagship screen. Lock it the second the lights drop so no plot beats leak to the lobby.
Post-credit stingers
Crowd stayed for credits0%
Baxter Screen
Spoilers openFantastic Four crowd. The mid-credit tease is the whole point, so lock it down.
Post-credit stingers
Crowd stayed for credits0%
Krakoa Midnight
Spoilers openMidnight mutants. The post-credit Secret Wars setup is sacred, so no leaks past the doors.
Post-credit stingers
Crowd stayed for credits0%
The upgrade
From Doomsday gridlock to provable flow
Same opening night, same three universes of fans. The only difference is the affixio SDK making each decision a signed yes/no instead of a guess.
Gridlock on opening night
Lobby queue time
Concessions wait
Screen door chaos
VIP overflow
Auditable decisions
Provable, gated flow
Lobby queue time
Concessions wait
Screen door chaos
VIP overflow
Auditable decisions
The plug-in
Three lines. Your host. Your proofs.
Install affixio from npm, create a client, and ask for a signed decision on any zone. That is the whole integration between your cinema systems and a provable flow.
// 1. Install: npm install affixio import { AffixClient } from "affixio"; const affix = new AffixClient({ mode: "licence-only", sig: "ML-DSA-65" }); // 2. Ask for a signed yes/no on any cinema zone const proof = await affix.prove({ entity: "cinema/doomsday/imax-doom-hall", policy: "hold-doors-until-clear", evidence: { foyerLoad: 0.93, priorShowClear: false } }); // 3. proof.decision === "NO" → hold doors. Signed, auditable, on your host. console.log(proof.decision, proof.digest, proof.signature);
The proofs
Three signature modes, one signed result
Every zone decision comes back as a verifiable proof. Pick the weight you need per gate, from fast HMAC for throughput, to UltraHonk for the heavy beat, to ML-DSA-65 to stay post-quantum safe.
HMAC · default
Fast gate
Lightweight keyed digest for high-frequency lobby and concessions decisions. Microsecond latency, perfect for flow metering.
UltraHonk · optional
Zero-knowledge beat
When a zone decision must prove compliance without exposing the crowd data behind it, this is the heavier, privacy-preserving mode.
ML-DSA-65 · always
Post-quantum seal
A post-quantum signature wraps every proof, so the yes/no on your cinema gates stays verifiable long after Doomsday leaves screens.
Intel briefing
Questions from the ops floor
What is Doomsday Cinema?
A themed demo showing how the affixio SDK monitors a multiplex during the Avengers: Doomsday tentpole. Each zone returns a signed yes/no proof so a cinema can prove how it controlled crowd flow on opening night.
Does it need an AffixIO API key?
No. The demo runs entirely in the browser and builds local SHA-256 evidence digests. The production SDK is licence-only by default and only syncs remotely if you explicitly opt in.
Is this affiliated with Marvel Studios?
No. Doomsday Cinema is an independent AffixIO demo. Movie names and characters such as Doctor Doom, the Fantastic Four and the X-Men are referenced as cultural keywords only, and no Marvel artwork, logos or trademarks are used.
What is a yes/no proof?
A signed eligibility result produced on your own host. It returns a verifiable YES or NO plus an evidence digest and an ML-DSA-65 signature, so a gate decision is auditable without replaying personal data.
How does it enhance a cinema's current flow?
It plugs into the point-of-sale and access systems you already run, turning each operational gate (opening a desk, holding doors, throttling entry) into a provable decision. Flow gets measured, controlled and audited in one pass.
Why ML-DSA-65?
It is a NIST-standardised post-quantum signature. Wrapping every proof with it keeps the audit trail verifiable even as quantum computing matures, which matters for records a cinema may need to keep for years.
Mission prep
Are you opening-night ready?
Every Doomsday fan runs the same pre-show checklist. Tick yours off and watch your readiness climb. affixio would proof each one, but for now this is just the ritual.
Assemble your multiplex for Doomsday.
Install the affixio SDK and turn opening-night chaos into a provable flow of yes/no decisions, from the lobby to IMAX and concessions to the VIP lounge.