Supply 10y+

BTC in UTXOs 10y+ old

Property	Value
Category	Supply Analysis
Unit	BTC
Resolution	1d
Assets	BTC
Tier	Basic
API Endpoint	GET /v1/cohort/metrics/10y_plus
Field	supply_10y_plus

Overview

Supply 10y+ measures Bitcoin in UTXOs that have not moved in over 10 years. This includes Satoshi-era coins and is widely considered to include a significant portion of permanently lost supply.

Formula

$\text{Supply}_{10y+} = \sum_{\text{age} \geq 3650\text{ days}} \text{UTXO amount}$

Interpretation

• This metric is relatively stable and grows slowly as coins age past the 10-year mark.
• Decreases are extremely rare and indicate movement of coins from Bitcoin's earliest days.
• A substantial portion of this supply is likely permanently inaccessible (lost keys, Satoshi coins).

Use Cases

• Estimate the upper bound of permanently lost Bitcoin supply
• Track the aging frontier of the UTXO set
• Adjust circulating supply estimates for economic analysis

API Usage

curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://api.blocklens.co/v1/cohort/metrics/10y_plus?start_date=2024-01-01&end_date=2024-12-31&limit=365"

Related Metrics

• Supply 7y-10y — BTC in UTXOs 7y-10y old
• Realized Price 10y+ — Cost basis of UTXOs 10y+
• Realized Cap 10y+ — Realized cap of UTXOs 10y+