Bitcoin testnet4 · Spark REGTEST · no mainnet paths
🎮 Game Design & Interactive Media · reward distribution

Sponsored Loot Drops

Distribute in-game rewards directly to players' wallets without any gas fees.

Ordinals inscription (testnet4)· onchain authorship
Section · Onchain

The primitive.

full primer →

Game designers inscribe each reward distribution as an Ordinal on Bitcoin testnet4, minting a permanent, wallet-owned inscription ID with the artifact bytes carried directly in the witness.

Why this primitiveWriting the artefact bytes directly into a Bitcoin testnet4 taproot witness mints an ownable inscription that travels with the creator's address.

Kernel
a taproot inscription that writes the artifact bytes directly into a Bitcoin testnet4 witness, minting an inscription ID owned by the creator's address
Drives the UI as
an 'inscribed on Bitcoin' badge with the inscription ID and an ordinals.com testnet preview
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…
Appendix · Market

Market sizing.

TAM
$12B
global game rewards market
SAM
$2.8B
indie game token economies
SOM
$600M
gasless reward systems for digital collectibles

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

See also

Adjacent entries.