checkpoint_proof

Generates a zero-knowledge proof that all data blobs up to a specified slot are valid.

post

• The slot should be the latest finalized slot you want included in the proof.

• Returns a request_id immediately while the proof is built in the background.

• Submits the finished proof to the on-chain verifier program automatically, so no additional action is required.

This endpoint generates and submits a ZK proof to Solana of all uploaded blobs from the last checkpoint (or genesis if no checkpoint exists) up to the specified slot.

Body

application/json

Responses

200

JSON-RPC success (request_id) or error

application/json

jsonrpcstring · enumRequiredPossible values:

idstringRequired

resultstringOptional

request_id to poll via get_proof_request_status

400

Invalid request payload

application/json

500

Internal indexer error

application/json

post

/proof

HTTPcURLJavaScriptPython

POST /proof HTTP/1.1
Host: devnet.data-anchor.termina.technology
Content-Type: application/json

{
  "id": "91",
  "jsonrpc": "2.0",
  "method": "checkpoint_proof",
  "params": {
    "blober": "4Nd1m1c9f9LxFHVfv1m1ChMpV4hV6j3uYVFzh5eRvYV7",
    "slot": 385430344,
    "customer_elf": "BASE64_ELF_BYTES_HERE"
  }
}

{
  "jsonrpc": "2.0",
  "id": "91",
  "result": "6f6f3c3a-b2a1-4b6a-9e24-9b2f0c9f2b5d"
}