Blocks

A Coiin EAL business chain creates a new block every five seconds if there are new transactions on the chain. Transactions are collected for the entire block time, then hashed, signed, and put into a block. The block is then hashed, signed, and sent for network verification. By design each block contains a reference to the previous block’s hash.

Getting Blocks

Because Coiin EAL designed its architecture with privacy and protection of business data in mind, transaction payloads are not included in the block sent for network verification. Authorized users can request information on transactions directly using a transaction ID or other search criteria, but all transaction payload information is stripped prior to verification on the Coiin EAL verification network to protect the sensitive business data, including privacy (e.g. GDPR, CCPA, and HIPAA) data. Etc.

With the coiin command line shell tool, one can easily extract blocks from a business chain by block ID:

$ coiin block get "28167573"
{
  "status": 200,
  "response": {
    "version": "1",
    "dcrn": "Block::L1::AtRest",
    "header": {
      "dc_id": "28GiivQE5m8a9oyvFD33JgwnBpgyZp2RxtTVFGjcRPVDJ",
      "block_id": "28167573",
      "level": 1,
      "timestamp": "1573076085",
      "prev_id": "28167557",
      "prev_proof": "MEUCIQC2/17+JRNENHoNnqobdYN88i/GMyvFbYY8aDLU0qct2gIgGObKjoi/cDxyLHkByKbZ2aiwTZtJ7XB2iqkvqNmQ4lY="
    },
    "transactions": [
      "{\"version\":\"2\",\"dcrn\":\"Transaction::L1::Stripped\",\"header\":{\"txn_type\":\"with-index\",\"dc_id\":\"28GiivQE5m8a9oyvFD33JgwnBpgyZp2RxtTVFGjcRPVDJ\",\"txn_id\":\"665541ef-7a68-472d-b4f1-c75484a7f8f7\",\"block_id\":\"28167573\",\"timestamp\":\"1573076083\",\"tag\":\"\",\"invoker\":\"\"},\"proof\":{\"full\":\"BGHz+yb+lrasHKNbl46awH1bqPYBb+HfZiqecBV31Bs=\",\"stripped\":\"MEUCIQDWgiKuN4JJMU8WSGe0HnNipPgH/O8S+uVuk6YuB/K2swIgEw6OhNrDWN1rcAr6UBYBDzVvranlBsbJnuP1uXagLa0=\"}}"
    ],
    "proof": {
      "scheme": "trust",
      "proof": "MEUCIQCICgA2/Py+VqgqYWGAVpVvNBMspVOMLYlYJ0ZqGk4YVAIgfJPv8By3YeAA7qKgyhwqcCgkPNyMUHu8A/Wzgyxclx8="
    }
  },
  "ok": true
}