PranaNet
AQI 71
← bkc-sim-04.sim.prananet.eth
← #6328#6330 →

Reading #6329

292Poor

bkc-sim-04.sim.prananet.eth · cell te7u3y · 11/11/2026, 05:20:00 IST · simulated device

PM2.5
117.6 µg/m³
PM10
227.1 µg/m³
Temperature
29.3 °C
Humidity
64.2 %

Arkiv entity

Open in Arkiv explorer ↗
Entity key
0xf81b81b8766c477ec0b7b6019baca106d10864843935cc5bcc95ae5a757b9b21
Written by (relayer wallet)
0x3a1f21f1c6f05efa35bb7178274b41c8873cca67
Expires
14/11/2026, 05:22:27 IST (3 days after the reading)
Queryable attributes
device = 0x35025af20ff45df8ac04d45f8b91ff1baa61e5a5ens = bkc-sim-04.sim.prananet.ethgeohash = te7u3yepoch = 1794354600nonce = 6329pm25_x10 = 1176pm10_x10 = 2271simulated = true
Query that finds this record
from("prananet.reading").where(device = 0x35025af20ff45df8ac04d45f8b91ff1baa61e5a5 && nonce = 6329).ownedBy(0x3a1f21f1c6f05efa35bb7178274b41c8873cca67)

Check it yourself

Your browser just repeated the check the Readings contract does on-chain. The relayer only pays gas: changing any value would break the signature.

  1. ✓
    Step 1

    Rebuild the 264-byte message

    #FieldTypeBytesValuePacked hex
    1deviceaddress200x35025af20ff45df8ac04d45f8b91ff1baa61e5a50x35025af20ff45df8ac04d45f8b91ff1baa61e5a5
    2epochuint2563217943546000x000000000000000000000000000000000000000000000000000000006af3ada8
    3pm25_x10uint2563211760x0000000000000000000000000000000000000000000000000000000000000498
    4pm10_x10uint2563222710x00000000000000000000000000000000000000000000000000000000000008df
    5temp_x10int256322930x0000000000000000000000000000000000000000000000000000000000000125
    6hum_x10uint256326420x0000000000000000000000000000000000000000000000000000000000000282
    7nonceuint2563263290x00000000000000000000000000000000000000000000000000000000000018b9
    8chainIduint25632111551110x0000000000000000000000000000000000000000000000000000000000aa36a7
    9readingsContractaddress200x9192Fc053e1493EB2B7355192aa3F8e57AAE01d80x9192fc053e1493eb2b7355192aa3f8e57aae01d8

    abi.encodePacked, no padding between fields. chainId and contract stop replay on other chains. Total: 264 bytes.

  2. …
    Step 2

    Hash it with keccak256

    …
  3. …
    Step 3

    Recover the signer from the EIP-191 signature

    r 0x
    s 0x
    v NaN
    recovered …
  4. …
    Step 4

    Compare with the registered device key

    registered 0x35025af20ff45df8ac04d45f8b91ff1baa61e5a5
  5. ✓
    Step 5

    Nonce strictly increases

    Nonce 6329 follows #6328, so this reading can't be replayed.
  6. ✓
    Step 6

    Cross-checked against neighbours

    Not flagged. The value agrees with neighbouring devices within the verifier's threshold.

Raw reading JSON
{
  "device": "0x35025af20ff45df8ac04d45f8b91ff1baa61e5a5",
  "ens": "bkc-sim-04.sim.prananet.eth",
  "geohash": "te7u3y",
  "epoch": 1794354600,
  "pm25_x10": 1176,
  "pm10_x10": 2271,
  "temp_x10": 293,
  "hum_x10": 642,
  "nonce": 6329,
  "signature": "0x",
  "simulated": true
}