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Data Packages

Data Packages are signed envelopes that reference off-chain payloads. Only hashes and pointers are anchored on-chain.

For API validators, an optional adapter field records the anchorer/signer address.

AnchorId​

anchorId = keccak256(abi.encode(
  schemaId,
  dataTypeHash,
  provider,
  windowStart,
  windowEnd,
  payloadHash
))

EIP-712 signature​

The provider signs the envelope using OlympData domain:

  • name: OlympData
  • version: 1
  • chainId: L3 chainId
  • verifyingContract: DataAnchorRegistry

Proof bundle​

Gateways return:

  • Payload bytes (or JSON)
  • Full DataPackage envelope
  • Anchor tx reference + provider score

API validator models​

  • Model 1: provider signs, adapter anchors.
  • Model 2: adapter signs + anchors (bootstrap).