eth_getBlockByNumber

Success excludes calls the provider does not implement — an optional method a provider declines to offer is a capability fact, not a failure, and is never scored as one.

Median latency per day. Gaps are periods with no measurement, drawn as gaps rather than joined across — a line through missing data invents a measurement that was never taken.

A degradation is a bucket where a provider fell away from ITS OWN median for this method over the window, not from the cohort's. A provider that is consistently slower than its peers is not degraded — it is slower, which the ranking already says. Buckets with fewer than 20 samples are skipped, because a claim about a provider cannot rest on a handful of calls, and adjacent bad buckets are merged so one outage reads as one incident.

Runnable as written, against a keyless public endpoint. Nothing here needs an API key.

curl -s https://ethereum-rpc.publicnode.com \
  -H 'content-type: application/json' \
  -d '{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["latest",false],"id":1}'

{
  "jsonrpc": "2.0",
  "method": "eth_getBlockByNumber",
  "params": ["latest", false],
  "id": 1
}

{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "number": "0x14a2f3b",
    "hash": "0x...",
    "parentHash": "0x...",
    "timestamp": "0x68a1c2f0",
    "gasLimit": "0x2255100",
    "gasUsed": "0x11e6a2c",
    "baseFeePerGas": "0x3fa63a3f",
    "transactions": ["0x...", "0x..."]
  }
}