SegWit+Taproot Share (%)TRINITY EXCLUSIVE

Trinity exclusive model

This metric is a proprietary Trinity Insights model. Its formula, inputs, weights and parameters are NOT disclosed. The page documents only the output (bounded scale, interpretation zones, historical context). Access to the score and its time series is via the REST API and the MCP server, subject to the required tier.

What is it?

SegWit+Taproot Share measures the combined percentage of daily outputs using P2WPKH (native SegWit v0) or P2TR (Taproot v1) relative to total outputs across 4 main script types (P2PKH, P2SH, P2WPKH, P2TR). Calculation: (P2WPKH + P2TR) / (P2PKH + P2SH + P2WPKH + P2TR) × 100. This metric reflects the network share using modern transaction formats benefiting from the witness discount — reduced fees and better block space efficiency. It is the most comprehensive indicator of Bitcoin network technical modernisation.

How to read

A rising percentage indicates the ecosystem is migrating to modern formats. In the post-Taproot era (activated November 2021), the combined P2WPKH+P2TR ratio stabilises structurally above 80%, dominated by P2WPKH with a growing P2TR contribution. A ratio > 90% would mean legacy scripts (P2PKH, P2SH) are marginalised. The trend is structurally bullish as new wallets and exchanges implement native SegWit or Taproot by default.

Key zones

SegWit adoption went from 0% (August 2017) to ~50% in 2020, then above 70% in subsequent cycles. Adding Taproot (November 2021) pushed the combined above 80% in the post-activation era. P2SH remains in a 5-8% range (mainly multi-sig and wrapped SegWit). Legacy P2PKH slowly declines — remaining legacy UTXOs are often old coins unmoved since the early Bitcoin years.

What to observe

Watch the breakdown between P2WPKH and P2TR within the combined share — P2TR growth at P2WPKH's expense shows migration to the latest script generation. Sudden jumps correspond to integration by a major exchange. Ratio stagnation at high levels suggests a legacy 'hard core' remains, made of old UTXOs whose owners have no immediate reason to migrate.

Historical context

SegWit was activated August 24, 2017, Taproot on November 14, 2021. Combined adoption follows a logarithmic curve: fast initially thanks to major exchanges (Coinbase, Binance adopted in 2019-2020), then asymptotic. Ordinals inscriptions (2023+) accelerated P2TR adoption specifically, but 'organic' adoption (payments) remains slower.

Expert notes

⚠️ Trinity Exclusive Model — The calculation uses 4 average per-block script counters (P2PKH, P2SH, P2WPKH, P2TR). P2WSH (SegWit multi-sig) and P2PK (very old) are not separately counted but represent <2% of total. SegWit's witness discount (witness data at 1/4 weight) is the main economic advantage of these modern formats. In practice, a P2WPKH transaction costs ~40% less in fees than an equivalent P2PKH, and a P2TR key-path ~30% less than P2WPKH.

Common mistakes to avoid

A high ratio does not mean 86% of 'users' are on SegWit — it's 86% of outputs created. A single exchange can generate thousands of P2WPKH outputs per day. Conversely, many individual users are still on P2PKH unknowingly (old wallets). The ratio can temporarily dip during periods of legacy UTXO consolidation by exchanges.

Programmatic access

REST API

curl -sS \
  'https://api.trinityinsights.io/api/v1/onchain/witness-discount-utilization/history?days=90' \
  -H 'X-API-Key: $TRINITY_API_KEY'

MCP server

{
  "tool": "get_chart_value",
  "metric_id": "witness-discount-utilization",
  "timeframe": "1y"
}

Required tier: performance. See the pricing grid for the tier list and the MCP documentation for multi-client configuration.

Related metrics

• segwit-adoption-rate
• taproot-spend-ratio
• fee-rate-median
• transaction-count

Institutional disclaimer

Trinity Insights is an educational and analytical tool. The metric above does not constitute investment advice. Trinity Insights is not a Crypto-Asset Service Provider (CASP) registered under MiCA Regulation (EU) 2023/1114. See the full disclaimer.