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bor_getAuthor

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bor_getAuthor returns the block author for a given block — the address of the validator that proposed (signed) that block under Polygon's Bor consensus. It is the historic counterpart of bor_getCurrentProposer: where the latter tells you who is proposing right now, bor_getAuthor answers "who proposed block N?" for any block in the chain's history.

This is a method in the bor namespace, a Polygon-exclusive extension of the standard EVM JSON-RPC surface. It exposes Bor consensus state — validator sets, proposers, signers, and snapshots — that is not available on standard Geth or Erigon nodes; calling these methods against a plain EVM provider returns a method-not-found error. Triport serves the full bor namespace on the Polygon endpoint.

The most common use is validator productivity indexing: by resolving the author of each block over an epoch you can measure how many blocks each validator proposed. Because the Polygon archive depth is ≥ 5,000,000 blocks (roughly four months at ~2.1 s block time), you can look up authors well into the past, not just for recent blocks. bor methods require the Pro tier or higher.

Parameters

This method takes no parameters.

Returns

bor_getAuthor return value
FieldType
resultobject

Examples

curl https://triport.io/sol \
  -X POST -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer <api-key>' \
  -d '{"id":1,"method":"bor_getAuthor","params":[],"jsonrpc":"2.0"}'
const res = await fetch("https://triport.io/sol", {
  method: "POST",
  headers: { "Content-Type": "application/json", Authorization: "Bearer <api-key>" },
  body: JSON.stringify({
  "id": 1,
  "method": "bor_getAuthor",
  "params": [],
  "jsonrpc": "2.0"
}),
});
const data = await res.json();
import requests
resp = requests.post(
    "https://triport.io/sol",
    headers={"Authorization": "Bearer <api-key>"},
    json={"id":1,"method":"bor_getAuthor","params":[],"jsonrpc":"2.0"},
)
print(resp.json())

Usage

  1. Transport: HTTP (JSON-RPC).
  2. Networks: mainnet.
  3. Credit cost: 1 per call.

FAQ

What does bor_getAuthor do?
Returns the block author — the validator address that proposed a given Polygon block.
How many credits does bor_getAuthor cost?
bor_getAuthor costs 1 credit(s) per call on Triport by default.
Is bor_getAuthor available over WebSocket?
bor_getAuthor is an HTTP JSON-RPC method.