Bitcoin testnet4 · Spark REGTEST · no mainnet paths
Creative Bitcoin
✍️ Writing, Poetry & Narrative · script feedback

ScriptSphere II

Share scripts for peer review with gasless, onchain social wallet transactions.

Spark sats paywall· instant sats payments
Section · Onchain

The primitive.

full primer →

Writers pay a few sats over Spark (Bitcoin L2) via a single Privy-signed transfer to unlock the script feedback; settlement is instant and the merchant confirms via getBalance.

Why this primitiveA Spark sats transfer settles in under a second and is Bitcoin-native — perfect for gating this content behind a one-click, low-friction micropayment.

Kernel
a 'pay N sats on Spark to unlock' gate — the user signs a Spark transfer via Privy, the merchant's wallet observes the transfer via Spark's getBalance/getTransfers, and the endpoint releases the payload
Drives the UI as
a 'pay 100 sats to unlock' button that returns the Spark tx id, the merchant confirmation, and settles instantly
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
$700M
script review platforms
SAM
$170M
collaborative feedback tools
SOM
$21M
screenwriters getting onchain critiques

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

See also

Adjacent entries.

script feedback
ScriptVote
Collect and manage anonymous peer feedback on screenplays via secure onchain voting.
script feedback
ScriptSphere
Share scripts for peer review with gasless, onchain social wallet transactions.
script feedback
ScriptVote II
Collect and manage anonymous peer feedback on screenplays via secure onchain voting.
poetry drafting
VerseVault II
Securely draft and store poems with seamless gasless transaction experience.