Paid call
The blob, as servednamed by its sha256
{
"schema": "teppi.evidence.v1",
"capability_id": "cap_01M1A51PB8WXC2Q6FMNC4RMEMK",
"probe_id": "prb_01M3Y76CYYRAEJFKSY8TNG1BMG",
"golden_task_id": "gt_01M3KRFD09QYKD6K6SNPXN7MHC",
"observed_at": "2026-10-02T12:51:16.073Z",
"transcript_hash": "sha256:dd05d30729aa2f527960607270c740b4592afb66c4fcebf1cda64611700aaf7e",
"request": {
"url": "https://base-gas-x402-production.up.railway.app/gas?gasLimit=21000",
"method": "GET",
"body_hash": "sha256:44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a"
},
"response": {
"status": 200,
"body_hash": "sha256:e754f3ae07ea54f55922c190ce1811b404dda751375b53cc2fd69473b637806b",
"latency_ms": 1287
},
"payment": {
"advertised": "5000",
"settled": "5000",
"asset": "USDC",
"network": "eip155:8453",
"tx_hash": "0x0ac40a9cee204dd8cceb6bbc3fc9b2b29fcaf95a1744e2ad62157113cfcc9a93",
"facilitator": "cdp"
},
"checks": [
{
"layer": "L0",
"pass": true,
"score": 1
},
{
"layer": "L0",
"pass": true,
"score": 1
},
{
"layer": "L1",
"pass": false,
"score": null,
"detail": "no output schema published, so nothing can be validated"
},
{
"layer": "L3",
"pass": true,
"score": 1,
"checker": "generated",
"detail": "1 of 1 agree with rpc-base.blockmachine.io and base-rpc.publicnode.com and base.drpc.org at block 52078057",
"generated": {
"template": "gt_01M3KRFD09QYKD6K6SNPXN7MHC",
"network": "eip155:8453",
"subject": {},
"truth": {
"kind": "base_fee"
},
"before": {
"block": {
"number": "52078057",
"hash": "0xa98f509a64a13a867ce2eecaba5cb45513c0092848f861f6bc90d7816134a730"
},
"values": {
"number": "52078057",
"hash": "0xa98f509a64a13a867ce2eecaba5cb45513c0092848f861f6bc90d7816134a730",
"parentHash": "0x599a182704351550328bf5832db459ea65f70343b57f4ced0f8435ff41c99545",
"timestamp": "1790945461",
"gasUsed": "52476809",
"gasLimit": "400000000",
"miner": "0x4200000000000000000000000000000000000011",
"txCount": "347",
"baseFeePerGas": "5000000"
},
"answers": [
{
"provider": "rpc-base.blockmachine.io",
"call": {
"method": "eth_getBlockByNumber",
"params": [
"0x31aa5e9",
false
]
},
"value": "{\"number\":\"52078057\",\"hash\":\"0xa98f509a64a13a867ce2eecaba5cb45513c0092848f861f6bc90d7816134a730\",\"parentHash\":\"0x599a182704351550328bf5832db459ea65f70343b57f4ced0f8435ff41c99545\",\"timestamp\":\"1790945461\",\"gasUsed\":\"52476809\",\"gasLimit\":\"400000000\",\"miner\":\"0x4200000000000000000000000000000000000011\",\"txCount\":\"347\",\"baseFeePerGas\":\"5000000\"}"
},
{
"provider": "base-rpc.publicnode.com",
"call": {
"method": "eth_getBlockByNumber",
"params": [
"0x31aa5e9",
false
]
},
"value": "{\"number\":\"52078057\",\"hash\":\"0xa98f509a64a13a867ce2eecaba5cb45513c0092848f861f6bc90d7816134a730\",\"parentHash\":\"0x599a182704351550328bf5832db459ea65f70343b57f4ced0f8435ff41c99545\",\"timestamp\":\"1790945461\",\"gasUsed\":\"52476809\",\"gasLimit\":\"400000000\",\"miner\":\"0x4200000000000000000000000000000000000011\",\"txCount\":\"347\",\"baseFeePerGas\":\"5000000\"}"
},
{
"provider": "base.drpc.org",
"call": {
"method": "eth_getBlockByNumber",
"params": [
"0x31aa5e9",
false
]
},
"value": "{\"number\":\"52078057\",\"hash\":\"0xa98f509a64a13a867ce2eecaba5cb45513c0092848f861f6bc90d7816134a730\",\"parentHash\":\"0x599a182704351550328bf5832db459ea65f70343b57f4ced0f8435ff41c99545\",\"timestamp\":\"1790945461\",\"gasUsed\":\"52476809\",\"gasLimit\":\"400000000\",\"miner\":\"0x4200000000000000000000000000000000000011\",\"txCount\":\"347\",\"baseFeePerGas\":\"5000000\"}"
}
]
},
"after": {
"block": {
"number": "52078059",
"hash": "0x53e8474702c0da606d3b886a88514b2dd90966af2e049f746533124cbae179a3"
},
"values": {
"number": "52078059",
"hash": "0x53e8474702c0da606d3b886a88514b2dd90966af2e049f746533124cbae179a3",
"parentHash": "0xdc1d4079354bb7284fbdaa0c4c959a841a0f38025ea787f87c08401c0a362409",
"timestamp": "1790945465",
"gasUsed": "59891824",
"gasLimit": "400000000",
"miner": "0x4200000000000000000000000000000000000011",
"txCount": "395",
"baseFeePerGas": "5000000"
},
"answers": [
{
"provider": "rpc-base.blockmachine.io",
"call": {
"method": "eth_getBlockByNumber",
"params": [
"0x31aa5eb",
false
]
},
"value": "{\"number\":\"52078059\",\"hash\":\"0x53e8474702c0da606d3b886a88514b2dd90966af2e049f746533124cbae179a3\",\"parentHash\":\"0xdc1d4079354bb7284fbdaa0c4c959a841a0f38025ea787f87c08401c0a362409\",\"timestamp\":\"1790945465\",\"gasUsed\":\"59891824\",\"gasLimit\":\"400000000\",\"miner\":\"0x4200000000000000000000000000000000000011\",\"txCount\":\"395\",\"baseFeePerGas\":\"5000000\"}"
},
{
"provider": "base-rpc.publicnode.com",
"call": {
"method": "eth_getBlockByNumber",
"params": [
"0x31aa5eb",
false
]
},
"value": "{\"number\":\"52078059\",\"hash\":\"0x53e8474702c0da606d3b886a88514b2dd90966af2e049f746533124cbae179a3\",\"parentHash\":\"0xdc1d4079354bb7284fbdaa0c4c959a841a0f38025ea787f87c08401c0a362409\",\"timestamp\":\"1790945465\",\"gasUsed\":\"59891824\",\"gasLimit\":\"400000000\",\"miner\":\"0x4200000000000000000000000000000000000011\",\"txCount\":\"395\",\"baseFeePerGas\":\"5000000\"}"
},
{
"provider": "base.drpc.org",
"call": {
"method": "eth_getBlockByNumber",
"params": [
"0x31aa5eb",
false
]
},
"value": "{\"number\":\"52078059\",\"hash\":\"0x53e8474702c0da606d3b886a88514b2dd90966af2e049f746533124cbae179a3\",\"parentHash\":\"0xdc1d4079354bb7284fbdaa0c4c959a841a0f38025ea787f87c08401c0a362409\",\"timestamp\":\"1790945465\",\"gasUsed\":\"59891824\",\"gasLimit\":\"400000000\",\"miner\":\"0x4200000000000000000000000000000000000011\",\"txCount\":\"395\",\"baseFeePerGas\":\"5000000\"}"
}
]
},
"answers": [
{
"pointer": "/baseFeePerGas",
"field": "baseFeePerGas",
"seller": "0.005",
"truth": "5000000 to 5000000",
"shown": "0.005 to 0.005",
"verdict": "agrees"
}
]
}
}
],
"verdict": {
"correctness": 1,
"honesty": 1,
"schema_conformance": null,
"liveness": 1
},
"injection_observed": false,
"verifier_version": "2026.09.7"
}Verify it yourself
curl -s https://api.teppi.xyz/v1/evidence/sha256:4391e9ffbede1e73b70c332eda9d4c5647280756e0924765a0dd890239e76e93 | sha256sumnpx teppi-check https://base-gas-x402-production.up.railway.app/gas?gasLimit=21000