Firsthand Bitcoin · Data · Bitcoin miners
The number of unspent transaction outputs, the pieces every bitcoin is stored in.
Unspent outputs (UTXO set) opened 2018 at 62.51M (January 4, 2018) and closed at 49.66M (December 31, 2018), down 20.6%. The high was 64.14M on January 12, 2018 and the low 48.88M on July 27, 2018.
| Month | Month end |
|---|---|
| January 2018 | 61.67M |
| February 2018 | 54.75M |
| March 2018 | 51.21M |
| April 2018 | 51.37M |
| May 2018 | 51.85M |
| June 2018 | 50.66M |
| July 2018 | 48.95M |
| August 2018 | 49.35M |
| September 2018 | 49.96M |
| October 2018 | 50.10M |
| November 2018 | 50.37M |
| December 2018 | 49.66M |
Bitcoin is not stored in accounts but in unspent outputs, each one a lump of coins that a future transaction will spend. The count grows with adoption and jumps during inscription waves, when many small outputs are created.
Other years: 2026 · 2025 · 2024 · 2023 · 2022 · 2021 · 2020 · 2019 · 2017 · 2016 · 2015 · 2014 · 2013
Also in 2018: Bitcoin price · Distance from the all-time high · 200-day and 200-week averages · Network hashrate · Mining difficulty · Difficulty adjustments · Fees paid to miners · Transactions per day · Hashprice · Miner revenue · Bitmain releases and the bitcoin price · Break-even electricity price