In the East Foothills of San Jose, California, 17 coders working for the popular ordinals marketplace maker, Magic Eden, piled into a 4-bedroom, 3,875 square-foot house rented on Airbnb. Their goal was to spend a week hacking to prepare for the so-called bitcoin halving — an event that is baked into the chain’s code and helps to stave off inflation through programmatic monetary policy.

A lot of the talk surrounding the halving, which happens roughly every four years, has been pegged to the fact that new issuance of the world’s largest virtual coin would be cut in half. But the block that locked in the halving also coincided with a couple other major launches on the blockchain, including cutting-edge programming innovations that are expected to draw both a lot more coders and a lot more venture capital dollars into the bitcoin ecosystem.

Also unlike past halving events, the world’s largest cryptocurrency touched a new all-time high above $73,000 in March as record flows entered the bitcoin ecosystem via the newly-launched spot bitcoin exchange-traded funds in the U.S.

“Bitcoin has never been healthier – what was missing previously was a vibrant developer ecosystem on top,” said Magic Eden’s co-founder and chief operating officer, Zedd Yin.

For years, rival chains like ethereum and solana have competed with bitcoin on functionality, because both have smart contracts — that is, programmable pieces of code — natively built into the base chain. That has been one of the chief reasons why developers around the world have flocked to these blockchains to build applications.

Enter Casey Rodarmor.

The popular bitcoin coder totally disrupted this dynamic last year when he introduced bitcoin’s version of non-fungible tokens known as ordinals, which developers ended up using as a base for bitcoin-issued coins called BRC-20 tokens. The launch was quiet, at first, but ultimately landed him tremendous acclaim.

Late Friday night, at the exact moment that the bitcoin halving initialized, Rodarmor unveiled his latest creation, runes, which is basically just a better and more efficient version of BRC-20 tokens.

“People really respect Casey and think that he sort of captured lightning in a bottle,” said Nic Carter of Castle Island Ventures. “And so there’s very high expectations for runes as well.”

Technically speaking, runes just enables asset issuance of fungible tokens on bitcoin’s base chain. That could be stablecoins, memecoins, or any variety of fungible token.

The reason this is significant to developers is because of its efficiency relative to existing BRC-20 tokens, bitcoin’s widely-used fungible token standard that has already received a ton of traction. Having a universally accepted token standard like this is seen as key to helping unlock scale of decentralized finance on bitcoin. Decentralized finance, or DeFi, is a parallel banking system that cuts out middlemen like lawyers and banks and relies upon code for enforcement.

“Fungible tokens are a significant part of every meaningful ecosystem like solana and ethereum, so runes is an important step in the evolution of bitcoin,” said Yin, who previously helped lead product for all institutional trading products at Coinbase.

Bill Barhydt, who runs Abra, a company that supports miners with a mix of services, including auto liquidations, and has access to macro data across the sector, said bitcoin simply cannot scale 100% on-chain via its own layer one. The problem has to do with the fact that bitcoin’s blockchain lacks the built-in smart contract capabilities necessary to reproduce the banking stack of a chain like ethereum or solana. 

“BRC-20 tokens and ordinals, its successor runes, sidechains such as stacks, and DeFi on bitcoin are all showing strong promise in user adoption which stands to dramatically increase the demand for bitcoin block space and adoption, which I believe will create a positive feedback loop further driving bitcoin price gains in the coming years,” Barhydt said. “It’s truly remarkable the level of new development work happening around bitcoin,” he added.

Venture investors agree.

“I’ve never seen deal pacing move this aggressively in the bitcoin space in my entire career,” Carter tells CNBC.

PitchBook says that the fourth quarter of 2023 was the first time in almost two years that deal value in the crypto sector had increased, reaching $1.9 billion — up 2.5% from the previous quarter. While still well off the 2021 high of $31 billion, funds are building back interest, and trust, in the space.

“There’s definitely been an awakening of capital interest in the bitcoin layer two space,” said Muneeb Ali, who co-founded Stacks — an open-source blockchain network that brings smart contracts to bitcoin.

Stacks is a separate chain to bitcoin but the two are able to work together. The project launched its own upgrade at the time of the halving block, as well, which reduced transaction time to five seconds, compared to the 10 to 30 minute block times tied to bitcoin’s base chain.

“Having so much VC interest just cements that the bitcoin ecosystem is primed to grow,” Ali said, who noted that the pace of projects launching on bitcoin has also picked up momentum in the last six months, from a half dozen projects going live to more than 50.

A new report released by Austin-based venture fund Trammell Venture Partners found that the bitcoin startup sector had a breakout year at the pre-seed stage, noting a 360% year-over-year increase in transaction count.

“Founders really want to be building on bitcoin specifically,” Christopher Calicott, the fund’s managing director and founding partner, said of the study’s findings.

The report also noted that early-stage, bitcoin-native startups raised just under $1 billion from 2021 through 2023.

Take Alpen Labs. The layer two project, which is bringing cutting-edge scaling technology known as zero-knowledge proofs to bitcoin, just emerged from stealth mode with Ribbit Capital leading a $10.6 million round. Another popular layer two solution dubbed “Build on Bitcoin,” or BOB, has raised $10 million in seed funding.

“Ordinals, BRC-20s and other innovations that came about in 2023 really helped build momentum ahead of the halving,” Ali said. “They made bitcoin fun again for developers and showed that users will favor NFTs, assets, and apps on bitcoin if given the opportunity.”