Categorizing Bitcoin Infra Primitives

I've approached it from a place of primitives or identifiable building blocks, and broke it up into native tech, oracles/covenants, meta-protocols most of which require indexing, layer2s and bridges. Note that most stacks will use a combo. IMO simplest will win.

I've added a few examples as well, with some bias, for some prominent uses of them.

Love to do a future write-up on pros and cons of each while diving a bit more into each example if we get enough zaps ;) 21K sats?

ALSO - Open to debates and corrections.

native tech:

• Multisig (Unchained)
• Timelock (RadFi)
• PSBTs (MagicEden)
• Taproot (LabitBu)
• Schnorr (ICP)

Oracle/covenants:

• HTLC (Liquidium)
• DLC (Atomic.Finance/Lava)
• MPC (Zengo/MPCWallet)
• FROST (AnchorWatch)

metaprotocols (indexed):

• Ordinals & Runes (data)
• Pathologies (data)
• Alkanes (contract)
• BRC2.0 (EVM) (contract)
• Arch (SVM) (contract + data)
• RGB & Taproot Assets (data)
• NAT/DMT (data)

L2s:

• Lightning (Spark)
• Federated (nostr/fedimint/liquid)
• Mergemined/Drivechains (RSK/Stacks)

Bridges:

• BitVM (Bitlayer/Citrea)
• Glock (Arkade)
• ZK-rollups (Merlin)