Tokenized assets can trade on-chain around the clock while their reference instruments trade in defined market sessions. That structural fact makes token/reference basis, off-hours spreads, and reference-price staleness recurring, observable quantities — this series publishes them as weekly frozen editions under the same citation contract as the Route Quality Index.
The observation source for this series — a token/reference basis monitor — is not live yet. This page publishes only what was actually observed: no backfill, no simulated history, no fixture editions. The first Basis edition appears here once the monitor is live and its observations clear the per-cohort sample floors. Until then, route checks report the same gap honestly as reference_price / market_regime fields with explicit unobserved states.
No Basis editions published yet. An empty index is the honest starting state of a benchmark that only reports what it actually observed — this series starts publishing when its observation source goes live, not before.
Basis is the observed difference between a token's on-chain price and its reference instrument's price, reported with its sources named, its as-of times stated, and its market-hours, corporate-action, and freshness caveats in-band. Each edition also reports reference-price staleness and the market-open/closed regime for the covered assets.
This is transparency evidence, not advice: a basis reading is never a statement that a token is mispriced, never a trade signal, and never an invitation to trade against the difference. Cohorts below the sample floor are counted and excluded — not ranked into a public number.
Basis editions inherit the Route Quality Index citation contract: every edition is frozen at publish with a stable URL (/rqi/basis/<iso-week>), a pinned methodology version (reserved schema identifier routescore.rwa_basis.weekly_index.v0), and a deterministic artifact hash — a regeneration can never move a number you already quoted. Main series: /rqi; measurement approach: /methodology.