UO_Total_N_STH
Tech spec
| Field | Value |
|---|---|
| API name (slug) | utxo_total_n_sth |
| Group | network statistics |
| Unit / Valuetype | count / - |
| Shape | scalar |
| Resolutions | block, h1, h4, h8, h12, d1 |
| Endpoints | /v2/network_statistics |
| Tier | 0 |
| Last updated | 2025-08-19 19:32 UTC |
| Docs | Open in Swagger |
Brief Description: The total count of unspent transaction outputs (UTXOs).
The UO_Total_N_STH has multiple versions:
- _total_n: all UTXOs, but excluding coins with dust value (<546 sats)
- _total_n_incl_dust: all UTXOs, including coins with dust value (<546 sats)
- _total_n_lth: all UTXOs aged more than 155 days
- _total_n_sth: all UTXOs aged less then 155 days
Interpretation From a network perspective, the UO_Total_N_STH is important because every node needs to maintain a database. A growing UO_Total_N_STH indicates a more complex database.
Advanced Explanation Every bitcoin node has a database of all UTXOs that could potentially be spent. If one try to spend bitcoin (UTXO), the node essentially checks if this UTXO exist in the database - before checking the key validity.