Bitcoin testnet4 · Spark REGTEST · no mainnet paths
Creative Bitcoin
✍️ Writing, Poetry & Narrative · poetry archiving

Verse Vault II

Securely mint and prove ownership of original poetry on-chain for authentic literary legacy.

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 poetry archiving; 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
$1.5B
global writing tools market
SAM
$150M
poetry-focused digital tools segment
SOM
$15M
dedicated NFT poetry archiving users

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

See also

Adjacent entries.

poetry archiving
VerseLedger
Securely timestamp and prove original poem authorship on the blockchain to prevent plagiarism.
poetry archiving
Poetic Memory Vault
Permanently preserve poets' drafts and revisions for authentic literary heritage.
poetry archiving
Verse Vault
Securely mint and prove ownership of original poetry on-chain for authentic literary legacy.
poetry archiving
VerseLedger II
Securely timestamp and prove original poem authorship on the blockchain to prevent plagiarism.