This article is featured in Bitcoin Magazine\u2019s<\/em> \u201cThe Inscription Issue\u201d. Click <\/em>here<\/a><\/em> to get your Annual Bitcoin Magazine Subscription.<\/strong><\/p>\n Click here<\/a> to download a PDF of this article.<\/strong><\/p>\n Ordinals have been a polarizing phenomenon for most every subcommunity in Bitcoin \u2014 except for miners. <\/p>\n The meteoric rise of the new Bitcoin-native NFT standard dominated discourse for months as Ordinals flooded blockspace and buoyed transaction fees to multiyear highs. According to critics, these transactions are, at worst, an attack on Bitcoin that tainted the sanctity of scarce blockspace; at best, they are shitcoins, the play-things of gamblers that belong on casino chains like Ethereum.<\/p>\n Well, miners don\u2019t give a shit if they\u2019re shitcoins. They give a shit about making money, and Ordinals gave them a revenue boost at a time when mining income was at one of its lowest points ever. So many miners have embraced \u2014 or at the least, are ambivalent about \u2014 Ordinals\/inscriptions, since they received a much-needed boost to Bitcoin mining profitability when many miners were nearly breakeven or unprofitable. <\/p>\n Hashprice is a measure of the USD (or BTC) amount miners can expect to earn from a unit of hashrate (for example, at $80\/PH\/day, a miner with 1 petahash of mining rigs \u2014 roughly 10 new-gen ASICs like the S19j Pro, for example \u2014 can earn $80 per day).<\/em><\/p>\n Given their positive impact on hashprice, Ordinals, a darkhorse technical advancement that few could have predicted last year, have found themselves at the center of discussions regarding Bitcoin mining economics, discussions that are more germane with each block that pulls us closer to Bitcoin\u2019s fourth block subsidy halving.<\/p>\n <\/a> I\u2019m not writing this to proselytize anyone into becoming an Ordinals enjoooyer. I, for one, don\u2019t really understand the appeal. But I do think that they\u2019re important in the context of Bitcoin\u2019s ever-dwindling block subsidy, so they\u2019re worth studying to understand how they affect blockspace and mining economics \u2014 and what developments like them might mean in a future where miners subsist solely on transaction fees. <\/p>\n In NFT parlance, folks use Ordinal and inscription interchangeably, but the individual terms refer to two different aspects of the NFT standard.<\/p>\n An inscription is a piece of art or digital media, while an Ordinal is technically the number prescribed to an inscription to mark its place in the grand scheme of all other inscriptions. Another way to view it is that the inscription itself is the NFT, while the Ordinal is the number used to identify an individual inscription. <\/p>\n The data for each inscription lives in the Segregated Witness section of a transaction. As such, unlike other NFT standards, the actual art, digital media, or data is uploaded directly to Bitcoin\u2019s blockchain. Since the inscriptions are fully on-chain, you could argue that they are the purest form of NFT available as they benefit from the blockchain\u2019s immutability. <\/p>\n When you understand that inscriptions are actual on-chain data, you can appreciate some of the critiques and concerns from detractors; if a bunch of NFT degens are inscribing monkey JPEGs and dickbutts and God-knows-what-else on-chain, then this crowds out economic (and potentially necessary) transactions.<\/p>\n This concern was aggravated by the fact that the arbitrary data for each inscription benefits from a transaction fee discount. As a scalability measure, Bitcoin\u2019s Segregated Witness upgrade modified the transaction structure so that the witness data for a private key signature and public key was moved from the transaction hash field to another part of the block. Bitcoin discounts SegWit data, so it requires fewer satoshis per byte in transaction fees to transact. The arbitrary data for an inscription lives in the SegWit field of a transaction, so it\u2019s entitled to the SegWit discount. Cue the pitchforks. <\/p>\n This discount is why, despite the first wave of image-based inscriptions clogging block space in February\/March\/April, transaction fees did not meaningfully increase; block sizes swelled when trendsetting inscribers flushed the blockchain with thousands of JPEGs for the first inscriptions collections, but these all benefited from SegWit\u2019s 4-to-1 data discount versus normal transactions. Perhaps intuitively, it wasn\u2019t until less data-heavy, text-based inscriptions from BRC-20 tokens became the most popular inscription type that transaction fees soared.<\/p>\n So-called BRC-20s (a nod to Ethereum\u2019s own ERC-20 token standard) are a loose form of token. I say loose because they are really just Ordinals in a series defined by Bitcoin\u2019s OP_CODE function, where each \u201ctoken\u201d is itself an OP_CODE transaction that defines the token\u2019s place in the specific BRC-20 series. It goes like this: Someone (God only knows who) publishes an OP_CODE transaction that defines the token series\u2019 max supply, ticker, and the minting limit per transaction. Once publicized, anyone with the technical know-how can mint tokens in the series.<\/p>\n These OP_CODE transactions do not benefit from SegWit\u2019s data discount, so they cost a pretty penny more than image-based inscriptions. But they also have a feature that image inscriptions don\u2019t: the minting function, which brings Ethereum NFT-esque incentives to collecting these inscriptions. Ethereum NFT series typically have minting contracts where anyone can create new NFTs in the series by interacting with the contract. This is part of \u2014 if not the entire \u2014 appeal. Minting an NFT is like opening up a digital pack of Pok\u00e9mon\/baseball\/Magic: The Gathering cards \u2014 maybe there\u2019s a rare card in this next one! <\/p>\n And while there isn\u2019t necessarily the opportunity to mint a rare BRC-20 (because they are all the same), there\u2019s the chance to mint a bunch of NFTs in a hot new series. Why anyone cares about having ORDI\/CUMY\/RATS #1 or #100 or whatever, I don\u2019t know. Perhaps it\u2019s the greatest expression of the greater fool theory yet in Bitcoin. But the fact is, they do, and the minting incentives for BRC-20s precipitated the largest wave of Bitcoin transaction activity ever.<\/p>\n Through a combination of fee wars and the fact that these NFTs don\u2019t benefit from the SegWit discount, BRC-20s have catered a veritable fee feast for Bitcoin miners, but not exactly in the way you might think.<\/p>\n The bulk of transaction fee increases in 2023 has not come directly from fees associated with Ordinals; it has come from indirect fee pressure on other transactions. <\/p>\n Per data from independent analyst Data Always\u2019 Dune dashboard, as of November 12, 2023, miners have raked in $70.3 million fees from Ordinals. Seems bigly, but it\u2019s only 19.4% of the $368.2 million in transaction fees that miners have earned in total since inscriptions debuted on December 14, 2022. To put this into further perspective, there have been 40.2 million inscription transactions, which equates to 30% of all transaction volume since December 14. So inscriptions have accounted for one-third of transaction volume over the last year but only one-fifth of all fees. <\/p>\n <\/a><\/p>\n As for the other fees, many of them are the result of indirect fee pressure from inscriptions \u2014 that is, fees that do not come directly from inscriptions themselves, but from the pressure that inscriptions exert on the average transaction fee needed to clear a Bitcoin transaction in a reasonable time frame. <\/p>\n Galaxy Digital Research examines this dynamic in a report titled \u201cBitcoin Inscriptions & Ordinals: A Maturing Ecosystem\u201d. Rampant inscription activity congests the mempool. This is particularly true during BRC-20 minting events, as the first-come-first-mint incentivizes bidding wars as inscribers gun to be the first to mint a series. This raises the floor for average transaction fees and, as Galaxy Digital Research points out, precipitates transaction fee \u201coverpayment\u201d from various transactors. They define overpayment as any fee in a block that is greater than that block\u2019s median transaction fee. For normal transactions, this overpayment could come from transaction fee estimators in wallets or on exchanges or from general user ignorance regarding transaction fee structure and dynamics. Some users may also need to expedite transactions for any number of reasons, leading to overpayment. For inscription transactions, Galaxy Digital Research says that \u201cvoluntary overpayment\u201d was commonplace during times of high activity and popular inscription mints.<\/p>\n This chart quantifies overpayment for inscription transactions and all other transactions to demonstrate the dynamics Galaxy Digital Research outlines in their report. When Bitcoin\u2019s mempool became backlogged in April and May \u2014 the hottest time frame for inscription activity so far \u2014 a majority of the transaction fees during this time actually came from user overpayment for financial transactions, not inscriptions themselves. These users could probably make it easier on themselves by not using built-in transaction fee estimators with their wallets and exchanges.<\/p>\n Inscriptions are a blessing and a curse. They\u2019re a godsend for miners, but they can be a pain in the ass for other Bitcoiners, particularly those who have to send transactions on the network every day. <\/p>\n That said, blockspace is an open market. So I don\u2019t have to like Ordinals to recognize that it\u2019s not my place to police someone else\u2019s spending. Nor is it my place to censor a transaction that pays for blockspace on the f(r)ee market. That\u2019s part of the point of a permissionless blockchain, after all: to make transactions other people don\u2019t want you to make.<\/p>\n This article is featured in Bitcoin Magazine\u2019s<\/em> \u201cThe Inscription Issue\u201d. Click <\/em>here<\/a><\/em> to get your Annual Bitcoin Magazine Subscription.<\/strong><\/p>\n
\n Click the image above to subscribe!<\/em><\/p>\nWTF is an Ordinal, Anyway?<\/h2>\n
Not All Inscriptions Are Created Equal<\/h3>\n
Quantifying Transaction Fee Collateral Damage <\/h2>\n
Blessing and a Curse<\/h2>\n