How the bridge works.

Proofs, custody rules and the two crossing routes. Eight graphics in Paper and Ink, with vector and PNG downloads.

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The proof path in motion.

Each stage receives a slow outline. The labels stay visible throughout. The SVG follows reduced motion preferences; every loop also has a static PNG.

Static proof pipeline in light mode
Light · Paper
Play loopFive proof stages highlighted in sequence
Static proof pipeline in dark mode
Dark · Ink
Play loopFive proof stages highlighted in sequence

Six seconds per loop at 1200 × 675. The loop explains a sequence; its duration is not a transfer estimate. Close “Play loop” to hide it.

Keep the checks distinct.

Use the mechanism and its trust assumptions together.

Work proofs and signatures

Attesters verify Pearl’s work certificates inside TEEs. Ethereum checks their checkpoint signatures and the deposit’s inclusion proof. Ethereum does not verify Pearl’s mining certificate directly.

Script rules and watchtowers

The covenant constrains funds. A watchtower checks whether the batch matches Ethereum and must act inside the window. The signer quorum, governance, correct code and independent chain data still matter.

D, D2 and DRekey are configured delays in blocks. Keep those symbols when no deployment parameters are supplied. The editable SVGs retain text; the display SVGs outline it for consistent rendering. Use the bundled Manrope and Geist Mono fonts to edit labels.