BRC-20 History: The Experiment That Congested Bitcoin

1. 1

   Ordinals put content on satoshis first

   BRC-20 is unintelligible without its predecessor. In January 2023 developer Casey Rodarmor's ordinals protocol went live on Bitcoin mainnet, letting anyone 'inscribe' arbitrary content — images, text, whatever fits — onto an individual satoshi, the chain's smallest unit. The trick needed no sidechain and no separate token: inscription content rides inside taproot witness data, split into pushes of at most 520 bytes and wrapped in an envelope of no-op opcodes, committed and revealed in two transactions. Because sats are numbered by the protocol's ordinal theory, an inscription can be traced and traded like a serial-numbered collectible. By spring 2023 these 'Bitcoin NFTs' were already paying miners serious fee revenue and annoying exactly the people who would soon coin the word 'spam' all over again.

   

2. 2

   Two named characters, one of them anonymous

   The 2023 inscription era had a short cast list, and one 2024 podcast slide captures it perfectly. Casey Rodarmor — creator, artist, developer, founder — owns the Ordinals and Runes protocols. Domo, @domodata on X, is listed simply as 'Developer, BRC-20 Token Standard', and that is the entire public identity: an anonymous on-chain builder whose real name has never surfaced, in a scene where Satoshi-style anonymity is tradition rather than exception. The other names on the slide — Leonidas, Leo Callard — were the era's amplifiers, the accounts that turned ordinals from a dev curiosity into a movement. Keep the two founders separate in your head: Rodarmor built the rail; domo ran the experiment on it that got out of hand.

   

3. 3

   domo's six-tweet 'experiment' — and its honest warning

   On March 9, 2023 (UTC), domo opened the thread that started everything: 'An experiment into "brc-20's" and fungibility on bitcoin with ordinals 1/x.' Six numbered posts followed (1/x through 6/x), linked to a GitBook spec, borrowed inspiration from @sats_names and @redphonecrypto, and established a 'first is first' rule for tickers. The documentation's warning deserves to be quoted in full: 'Read every word if you decide to test. These will be worthless. Use at your own risk.' domo even built a 'rudimentary frontend in Dune' to track balances, begged people to 'only use it for curiosity rather than a tool,' and closed with 'This is a raw idea and any feedback is welcome.' The mania that followed is exactly what the author said should not happen.

   

4. 4

   The standard itself: JSON, not smart contracts

   The mechanism was almost embarrassingly simple. A deployment is a JSON inscription: {"p":"brc-20","op":"deploy","tick":"ordi","max":"21000000","lim":"1000"} — protocol, operation, a four-letter ticker, maximum supply, per-mint limit. Minting and transferring use the same envelope with different 'op' values. There are no smart contracts and no on-chain balances anywhere; an indexer aggregates the inscribed function calls and keeps the ledger in a database, which is why domo stressed that 'taproot / ordinal indexed data is required' for correct balancing. Commentators immediately reached for the family tree: Crypto Koryo's viral May 2023 thread traced the idea back to the Colored Coins protocol of 2012, which had died under high fees and limited programmability. BRC-20 was Colored Coins with taproot's witness discount doing the heavy lifting.

   

1. 5

   ORDI deploys first; the imitations follow within a day

   domo's own test deployment of 'ordi' is timestamped March 8, 2023, 6:16:31 AM in UniSat's index — hours before the announcement thread, because domo had tested the format on the ordinals site the night before. The ticker's parameters were a wink: 21,000,000 max supply, 1,000 limit per mint, mirroring Bitcoin itself. The 'first is first' rule did the rest: 'meme' was deployed by an anonymous copycat that same day ('they must have seen my test deployment last night... and copied the format,' domo wrote), with punk, pepe, and gold following on March 9. Every token minted out 100% — no team allocation, no presale, no venture round. It was the purest fair-launch culture crypto had seen, and it was funded entirely by Bitcoin transaction fees.

   

2. 6

   Minting was just paying Bitcoin to inscribe JSON

   To mint, you opened the UniSat wallet — 'basically MetaMask but for Bitcoin' — picked a token, and signed an inscription that wrote another tiny JSON onto a satoshi you owned. The VOSK example shown here, a token the VoskCoin channel deployed as a demo, shows the whole flow: tick, amount, repeat count, then fees. And there is the experiment's central irony in one warning banner: 'The current Bitcoin network is highly congested. The inscription count is limited to be 24 per order.' 'Free' tokens, minted for the cost of real Bitcoin fees, capped at two dozen per order because the chain could not breathe. Multiply that banner by thousands of degens refreshing a browser tab, and May 2023 is already visible in miniature.

   

3. 7

   A marketplace appears while the paint is still wet

   Trading infrastructure materialized almost as fast as the tokens. UniSat's marketplace listed BRC-20 'transfer' inscriptions like collectible cards: ORDI lots of 300, 275, 350, and 500 units, bid at 6,000 to 8,810 sats per token — roughly $2 to $2.50 at May 2023 prices — each card an inscription that had to be inscribed, then spent, to change hands. Because a BRC-20 transfer is itself a Bitcoin transaction, every trade paid the network twice, and every listed card sat in the mempool queue like everything else. The prices were real, though: someone was paying actual Bitcoin for JSON that had not existed six weeks earlier. That is the moment an experiment becomes a market.

   

4. 8

   $120 million and +600% in one week

   By May 3, 2023, the numbers had stopped being funny. Crypto Koryo's thread — the most-cited summary of the moment — tagged BRC-20 as 'an experimental token standard for the Bitcoin blockchain. Inspired by Ethereum's ERC-20... Current market cap of BRC-20 tokens: ~$120M! Up 600% in the last week.' Read the framing twice: a standard whose own documentation promised worthless tokens had, in seven days, added six times its value. The same thread warned what the fine print had said all along — wallets like UniSat had already suffered exploits, memecoins were risky, and BRC-20 memecoins were 'even riskier. Total degen play.' Nobody trading the chart was reading the GitBook.

   

1. 9

   'These will be worthless' — ordi prints $4

   The thread's next entry is the experiment's thesis statement turned inside out: 'BRC-20 tokens have gained over $120M market cap in less than 60 days. The creator of the protocol originally stated these tokens would be worthless, but "ordi" reached $4 per unit, providing astronomical returns to early minters.' A thousand-ordinance mint that cost a few dollars in fees in March was now a four-dollar asset; early minters who had paid pennies per token in inscriptions sat on four-figure multiples. This is the mechanism that made the frenzy self-sustaining — as long as a minted token traded above its mint cost, rational degens would keep minting, and every new mint made the mempool worse. domo's GitBook had literally predicted this outcome and begged people not to do it.

   

2. 10

   8,500 tokens and an index page worth $1.1 billion

   'For now, majority of BRC-20 tokens are memecoins like "ordi," "pepe," and "meme." So far, over 8,500 different tokens have been minted,' Koryo's thread continued — and attached the index page to prove it. The table reads like a fever dream of finance: 8,550 total tokens, a summed total market cap of $1,118,617,956, ORDI at $3.426 (+12.89%, $71.9M), pepe at $0.365 (+25.81%), and a tail of joke tickers like SHIB, woof, and SHINT with nine-figure nominal supplies. Two weeks later CoinDesk would describe the sector's market cap as having 'approached $1 billion' — by whichever ledger you trusted, a JSON experiment was now a billion-dollar asset class. Each row of that table, remember, was minted by paying real Bitcoin fees.

   

3. 11

   A record week: 682,281 transactions and $7.6M in inscription fees

   Then the mania hit the chain's vitals. A market-recap quote card that circulated during the peak put numbers on it: total fees paid for ordinals inscriptions had topped 272 BTC — around $7.6 million — in a single week; over 372,000 inscriptions were created on the Monday alone; and the Bitcoin network set an all-time daily record of 682,281 transactions, with daily network fees hitting 23 BTC, about $656,000. Bitcoin's transaction ceiling is roughly 144 MB of blockspace per day, and BRC-20 minting was bidding it away from every other use. Miners, starved for fee revenue since the 2020 halving cycle, were suddenly printing subsidy supplements. Everyone else was paying for it at checkout.

   

4. 12

   Binance closes the Bitcoin door — twice in 24 hours

   The congestion got big enough to break the biggest company in crypto. On May 7, 2023, CoinDesk reported that 'Bitcoin Network Congestion Causes Binance to Pause Withdrawals,' with 'the world's biggest crypto exchange' resuming service only after hours of frozen BTC exits; the exchange paused withdrawals twice within roughly 24 hours as the mempool backlog climbed. Unconfirmed transactions approached 500,000 during this window — versus fewer than 50,000 for most of 2022 — because inscriptions and BRC-20 minting had filled every block. Binance's stated fix was to integrate the Lightning Network for withdrawals. For one weekend in May 2023, a meme-coin mint had done what no bear market ever had: made Binance unable to send your Bitcoin out.

   

1. 13

   The devs debate censorship — and blink first

   CoinDesk's Frederick Munawa captured the showdown on May 12, 2023: 'Among Bitcoin Developers, Debate Is Raging Over Whether to Censor Ordinals BRC-20s.' On the bitcoin-dev mailing list, Ali Sherief argued that 'real bitcoin transactions are being priced out' and that 'such justifiably worthless tokens threaten the smooth and normal use of the Bitcoin network'; Luke Dashjr — author of the Ordisrespector spam filter since February 2023 — answered that 'spam filtration has been a standard part of Bitcoin Core since day 1'; Peter Todd noted the awkward fact that 'miners are making millions of dollars from these inscription transactions.' Michael Folkson held the status-quo line: 'Consensus rules are set and the rest is left to the market.' No protocol change happened. The same argument had been had over SatoshiDice in 2012, and it would be had again over OP_RETURN in 2025.

   

2. 14

   November 2023: Binance crowns ORDI

   Six months after the mania, the establishment delivered its verdict. Binance's official announcement — 'Binance Will List ORDI (ORDI) with Seed Tag Applied' — opened spot trading for ORDI/BTC, ORDI/USDT, and ORDI/TRY at 10:00 UTC on November 7, 2023, with deposits open immediately and withdrawals the following day. The exchange's own description is the cleanest epitaph for the whole saga: 'ORDI is the first token created in accordance with the BRC-20 fungible token standard on the Bitcoin blockchain.' The Seed Tag — Binance's high-risk label — was the exchange hedging, and reasonably so: this was a listing for a token whose founding document called it worthless. The door domo's experiment had battered open in May was now officially open.

   

3. 15

   $95.52, then gravity: ORDI's arc completes

   After the listing, ORDI ran with the liquidity — CoinGecko records an all-time high of $95.52, a level the March 2023 minters who paid pocket change in fees could hardly have imagined. Then the thesis reasserted itself: as of this guide's archive capture, ORDI trades around $3.66, down 96.16% from that peak with a market cap near $77 million, ranked #324 — its all-time low of $2.10 barely below the current price. The standard's structural weaknesses never went away: balances live in off-chain indexers, every transfer burns two fee-paying transactions, and the mint model produces infinite copycats with no cash flows. domo's GitBook closed with a line that reads like prophecy in hindsight: better designs exist, and the community should tinker with alternatives. One of those alternatives was already written by the person who built the rail.

   

4. 16

   Runes: Rodarmor's answer at the 2024 halving

   On September 25, 2023, Casey Rodarmor published the protocol that BRC-20's critics had been asking for. He was blunt about the premise — 'Fungible tokens are 99.9% scams and memes' — but argued that since tokens were not going away, Bitcoin should capture the fee revenue with a design that avoids BRC-20's 'undesirable consequence of UTXO proliferation.' Runes keeps balances on real UTXOs and encodes its messages in OP_RETURN, so no junk outputs accumulate and the chain's index stays clean; the comparison slide used by ordinals educators sums it up as tokens stored in UTXOs 'much like a kangaroo's pouch.' Runes went live on April 20, 2024, timed to Bitcoin's fourth halving at block 840,000 — and BRC-20, the eight-week experiment that congested the chain, listed on Binance, and briefly touched a billion dollars, settled into its place in the history books as the draft that made the final version necessary.

   

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