the frontier

Also: frontier, frontiers, attribution frontier

How far BTI has got, as three heights, one cursor per layer: census (T1), claims (T2) and books (T3), always books ≤ claims ≤ census. The site's attribution frontier is the claims cursor, the height every protocol adapter has been searched up to. Every published figure is bounded by the books height; a block counted but not yet written to the books says so rather than showing zeros.

Used by: block.space

Used on #

• The frontier and "as of block H"
• block.space

Sources #

1. block.space frontier API (the three tier cursors and the chain tip) · block.space/api/frontier
2. Blockspace Holdings records