Bitcoin testnet4 · Spark REGTEST · no mainnet paths
Creative Bitcoin
🎭 Theater & Live Performance · improvisation prompts

PromptChain Impro II

Generate and track custom improv prompts securely stored and shared via smart contracts.

Privy Spark sign-in· bitcoin wallet UX
Section · Onchain

The primitive.

full primer →

Directors sign in with Google through Privy — no seed phrase, no wallet extension — and Privy mints them a Spark (Bitcoin L2) wallet plus a Bitcoin testnet deposit address in one flow.

Why this primitiveA Privy Spark embedded wallet lets creators sign in with Google and receive a Bitcoin L2 address in one click — no seed phrase, no browser extension.

Kernel
Privy embedded wallet with chainType 'spark' — Google / email sign-in mints a Bitcoin testnet address plus a Spark (Bitcoin L2) address in one flow, no seed phrase, no extension
Drives the UI as
a one-click 'Sign in with Google' that drops the user into the app with a copy-able Spark address and a testnet BTC deposit address
Appendix · Secrets

Required keys.

PRIVY_APP_ID
Privy dashboard → your app. Configure with chainType 'spark' to mint Bitcoin L2 wallets on sign-in.
open ↗
PRIVY_APP_SECRET
Server-side. Required for the merchant Spark wallet to observe incoming sats transfers via the Privy RPC.
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 — it carries its own feature spec, code, setup and checklist. read the build strategy →

loading the build spec…
Open in Lovable ↗mempool.space testnet4 ↗
Appendix · Market

Market sizing.

TAM
$500M
improv theater training market
SAM
$100M
improv prompt tools and apps
SOM
$20M
improv troupes experimenting with blockchain prompts

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

See also

Adjacent entries.

improvisation prompts
PromptChain Impro
Generate and track custom improv prompts securely stored and shared via smart contracts.
playwright collaboration
ScriptChain Ledger II
Securely track and timestamp script drafts through an immutable blockchain ledger.
casting marketplace
RoleAuction Platform II
Decentralized audition bids let performers compete transparently for roles via smart contracts.
lighting rights management
StageLight Token II
Issue and trade usage rights for lighting designs using onchain tokens to protect creators.