Bitcoin testnet4 · Spark REGTEST · no mainnet paths
Creative Bitcoin
✍️ Writing, Poetry & Narrative · casting and character assets

Screenplay Casting Files

Pin casting notes and character references permanently linked to screenplay projects.

Ordinals inscription (testnet4)· onchain authorship
Section · Onchain

The primitive.

full primer →

Writers inscribe each casting and character assets 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…
Open in Lovable ↗mempool.space testnet4 ↗
Appendix · Market

Market sizing.

TAM
$370M
screenplay production support market
SAM
$85M
casting and character management apps
SOM
$14M
writers and casting directors

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

See also

Adjacent entries.

plot structuring
Screenplay Beatboard
Pin structured screenplay beatboards and revisions immutably to maintain story consistency.
audio storytelling
Narrative Soundtrack Archive
Store narrative audio clips and story-related soundtracks permanently linked to story manifests.
story metadata management
Metadata Story Weave
Attach and pin rich metadata sets to stories ensuring permanent discoverability and context.
long-form poetry
Epic Poem Archive
Host epic poems and iterations permanently ensuring literary longevity and accessibility.