# second-source adapter

URL: https://blockspace.wiki/glossary/second-source-adapter/

An adapter for a second indexer on tokens BTI already catalogues: opi-ord beside ord, brc20-prog beside opi-brc20, alkanes-explorer beside metashrew. Its claims are sightings with no regions, so it writes no bytes and can never create a token. Each pair is diffed per window, and the rows that mean something go to one table of divergences.

Sources:

- Blockspace Holdings records

Updated: 2026-10-20