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Evidence layer for onchain payments

Evidence bundles

Official documentation for ProofRails — the open evidence and translation layer for onchain payments.

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Evidence bundles

An evidence bundle is the portable proof package for a receipt.

It can include:

  • receipt metadata
  • generated ISO XML files
  • checksums
  • manifest data
  • signature material
  • references to the anchor transaction

The important property is hash sensitivity. If the bundle changes, its hash changes. That lets a verifier compare the supplied evidence against the onchain anchor.

Why bundles matter

Block explorers show transactions. They do not automatically package the business context, ISO-style artifacts, metadata, and verification trail needed for finance operations. Evidence bundles make that context portable.