README.md

Send Blob via Light Node

---

Install Light Node

Follow instructions and install all dependencies, celestia-node and start light node:

1. https://docs.celestia.org/nodes/environment
2. https://docs.celestia.org/nodes/celestia-node
3. https://docs.celestia.org/developers/node-tutorial - Run Light Node on Arabica network.

Do not forget to receive tokens from Arabica faucet from Celestia Discourd.

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Prepare Tools for Sending Blob:

Generate API Key for RPC requests:

export CELESTIA_NODE_AUTH_TOKEN=$(celestia light auth admin --p2p.network arabica)                                     

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Send Blob

use submit-blob.py instead.

base64 file_with_blob > base64_blob
export BLOB_BASE64=$(cat base64_blob)
export NAMESPACE="AAAAAAAAAAAAAAAAAAAAAAAAAAECAwQFBgcICRA="
// calculate $COMMITMENT

curl -H "Content-Type: application/json" -H "Authorization: Bearer $CELESTIA_NODE_AUTH_TOKEN" -X POST --data "{'id': 1
  'jsonrpc': '2.0',
  'method': 'blob.Submit',
  'params': [
    [
      {
        'namespace': $NAMESPACE,
        'data': $BLOB_BASE64,
        'share_version': 0,
        'commitment': $COMMITMENT
      }
    ],
    0.1
  ]
}" 127.0.0.1:26658

Result:

{'id': 1, 'jsonrpc': '2.0', 'result': 1433193}

Get Proof for Blob

 curl -H "Content-Type: application/json" -H "Authorization: Bearer $CELESTIA_NODE_AUTH_TOKEN" -X POST --data ""{
   'id': 1,
   'jsonrpc': '2.0',
   'method': 'blob.GetProof',
   'params': [
     1433193,
     '$NAMESPACE',
     '$COMMITMENT'
   ]
}" 127.0.0.1:26658