Bitcoin (BTC) network activity is approaching record highs, driven by a sharp rise in microtransactions, according to a June 18 report from blockchain data firm CryptoQuant. Transactions below 0.01 BTC now make up roughly 80% of all daily activity on the network — nearly double their 44% share in 2023 — pushing CryptoQuant's Bitcoin Network Activity Index into positive territory for the first time since 2024.
What Is Driving the Surge
The jump in low-value transactions traces back to inscription-based protocols. Ordinals, Runes, BRC-20 tokens, and data-timestamping services are generating enormous volumes of dust-value transfers — some as small as 546 satoshis. These protocols embed data directly on the Bitcoin blockchain, producing transactions with minimal economic value but significant volume.
A key technical driver is OP_RETURN, an opcode that allows data to be embedded onchain without creating spendable outputs. Its usage has climbed to near-record levels in 2026. The opcode became a flashpoint in the Bitcoin community in 2025, when Bitcoin Core developers removed a long-standing 80-byte relay limit, allowing up to 100,000 bytes of data to be embedded per transaction. Critics argued the change would push Bitcoin further toward non-financial data storage.
CryptoQuant head of research Julio Moreno described OP_RETURN as "the standard mechanism for Bitcoin data-layer protocols" and noted that these protocols "generate high volumes of dust-value transactions (as low as 546 satoshis), directly explaining the low-value cohort surge."
Network Congestion and Fee Pressure
The current wave of inscription activity has pushed Bitcoin's mempool — the holding area for unconfirmed transactions — to approximately 128,000 transactions, its highest count since February 2025. Network activity now sits just 7% below the all-time high recorded in September 2024.
This is not the first time inscription protocols have congested the network. Transaction backlogs spiked in 2023 when Ordinals and BRC-20 activity competed with ordinary transfers for block space. A second wave followed in late 2024 after the launch of the Runes protocol. The current congestion remains below those earlier peaks, but the trend is moving in the same direction.
Moreno flagged a practical concern for everyday BTC users: sustained growth in non-financial activity could "increase block space competition and raise fees for economic transactions." He also noted that the economic value of these microtransactions is "disproportionately small" relative to the block space they consume.
What This Means for the Network
The data presents a split picture. On one side, raw network activity is near record levels — a metric that often signals healthy engagement with the blockchain. On the other, the bulk of that activity carries little financial weight. The Network Activity Index turning positive for the first time since 2024 reflects volume, not necessarily value.
For traders and users making regular BTC transfers, the more immediate concern is fee pressure. When inscription protocols flood the mempool, ordinary transactions compete for the same limited block space, which can push confirmation times and fees higher. That dynamic played out clearly in 2023 and again in late 2024, and the current mempool data suggests it may be building again.
Whether this round of inscription-driven congestion reaches those earlier extremes will depend on how much further OP_RETURN usage climbs and whether demand for data-layer protocols continues at its current pace.
(Not Financial Advice)
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