Creative Blockchain
🎭 Theater & Live Performance · sound design

EchoVault · x402

An industrial-grade foley and atmosphere engine for live theater. Sound designers call high-fidelity stems from a decentralized vault via x402 signatures. Designers earn per-cue royalties as frontline technicians trigger sounds in real-time during performance, ensuring every 'creak' or 'explosion' is a settled micro-transaction on the ledger.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the sound design engine is metered with x402: 0.01 HBAR or 0.01 HTS USDC per call, paid from the embedded wallet, so directors — or the agents working for them — pay per query and get a HashScan receipt every time.

Why this primitiveShifts from a passive archive to an active, pay-per-trigger performance tool. By using HTS transfer, theater companies avoid bulk subscriptions and instead meter their actual sound usage per show run.

Kernel
an x402 v2 paywall metering access at 0.01 HBAR or 0.01 HTS USDC (token 0.0.429274) per call, paid from the embedded wallet through the relay and verified by a self-hosted facilitator against the Hedera mirror node
Drives the UI as
a 'pay 0.01 HBAR or USDC to unlock' button with a live flow log and a HashScan link for every settlement
Appendix · Secrets

Required keys.

HEDERA_OPERATOR_ID
Hedera testnet account id (0.0.xxxxxx). Create and fund it free.
open ↗
HEDERA_OPERATOR_KEY
ECDSA private key for that account, from the Hedera portal dashboard.
open ↗
REOWN_PROJECT_ID
Free project id powering the HashPack pairing modal.
open ↗
HEDERA_RPC_URL
Optional. JSON-RPC relay, defaults to the public Hashio endpoint.
open ↗
PINATA_JWT
Pins images / JSON / manifests to IPFS.
open ↗

Add these in your Lovable project under Settings → Secrets before pasting the prompt below.

Appendix · Mega-prompt

The build prompt.

Paste into a fresh Lovable project. Make sure all five secrets above are set first. read the build strategy →

Loading the mega-prompt…
Hedera testnet HashScan ↗
Appendix · Market

Market sizing.

TAM
$280M
Global live entertainment, immersive experience, and theme park audio markets.
SAM
$42M
Professional sound designers and regional theater production houses.
SOM
$1.8M
Off-Broadway and experimental fringe festivals using automated MIDI-to-Base triggers.

Indicative figures for hackathon pitches — refine with your own research before raising.

See also

Adjacent entries.

sound design
Soundscape Archive
Pin ambient and effect sound files with metadata on IPFS to ensure lasting availability and sharing.
sound design
Soundscape Provenance
Mint live performance soundscapes as NFTs to authenticate original audio environments.
playwright collaboration
DraftFlow · x402
Pay-per-contribution script evolution. Every time a playwright pushes a new scene, dialogue tweak, or stage direction, the production pays a $0.01 micro-royalty. This turns the script into a living, metered asset where writers are paid for the act of creation in real-time. Producers unlock specific drafts or 'forks' of a play for rehearsal by paying a settled $0.01 fee per actor access, ensuring the creative sweat equity is instantly monetized and timestamped on-chain.
casting marketplace
StageRead · x402
A high-frequency talent scout protocol where every audition tape submission and casting call 'side' download is a micro-settlement. Directors pay $0.01 to unlock a performer's reel, and actors pay $0.01 to commit their encrypted audition data to the chain. This replaces monthly subscription models with a 'pay-per-opportunity' architecture, preventing platform bloat and ensuring only high-intent interactions between talent and production.