Script Migration MomentumTRINITY EXCLUSIVE
EXCLUSIVE - 30-day rolling rate-of-change of each script type's market share by output count. Positive values indicate adoption acceleration, negative values mark decline. Reveals regime shifts in Bitcoin's protocol evolution.
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?
Script Migration Momentum measures the speed at which Bitcoin output composition changes between the two dominant script types: P2TR (Taproot) and P2WPKH (native SegWit). For each script, we compute its share of daily outputs, then the 30-day rolling rate of change of that share (in percentage points). A positive value means the script is gaining ground, a negative value means it's losing ground. The two curves show the migration dynamic between SegWit and Taproot.
How to read
Two curves: P2TR Momentum (blue, primary) and P2WPKH Momentum (purple, secondary). Above zero = the script is gaining market share. Below = losing it. Amplitude shows rate of change in percentage points over 30 days. Crossovers (curve going from positive to negative) mark inflection points in adoption. Sudden P2TR spikes (often Ordinals-related) are distinguishable from gradual trends (organic adoption).
Key zones
P2TR momentum > +2%/month: significant adoption acceleration. P2PKH momentum < -1%/month: accelerated legacy migration. P2WPKH momentum near 0: SegWit in maturity regime (dominant share evolving slowly). P2TR momentum inversions (positive → negative) have historically coincided with inscription wave endings.
What to observe
The interaction between curves is more informative than any single curve. When P2TR accelerates AND P2PKH decelerates → direct legacy→Taproot migration (rare but significant). When P2TR accelerates but P2WPKH doesn't decelerate → P2TR growth comes from additional protocol activity, not SegWit→Taproot migration.
Historical context
The P2PKH→P2WPKH migration was the longest in Bitcoin history: from 2017 (SegWit activation) to 2023, P2WPKH slowly captured the majority of outputs. P2SH has been in constant decline since 2021 (wrapped SegWit obsolete). P2TR oscillates between protocol spikes and slow baseline growth. Steady state will be reached when P2TR captures the P2SH niche and part of P2WPKH.
Expert notes
⚠️ Trinity Exclusive Model - The 30-day momentum is a bandpass filter: it removes daily noise while capturing monthly trends. A shorter filter (7d) would be too noisy for low-volume script types. The sum of four momentums should theoretically be zero (shares = 100%), but rounding and excluded minor types (P2MS, P2WSH, OP_RETURN) create a slight residual.
Common mistakes to avoid
Positive momentum does NOT mean the script type is 'winning'. It means its share is INCREASING. A script with 2% share and +5% momentum still has 2.1% - it's still marginal. The absolute magnitude of the share must always be read alongside the momentum.
Programmatic access
REST API
curl -sS \
'https://api.trinityinsights.io/api/v1/onchain/script-migration-momentum/history?days=90' \
-H 'X-API-Key: $TRINITY_API_KEY'MCP server
{
"tool": "get_chart_value",
"metric_id": "script-migration-momentum",
"timeframe": "1y"
}Required tier: performance. See the pricing grid for the tier list and the MCP documentation for multi-client configuration.
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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.