PranaNet
AQI 54
← bkc-sim-04.sim.prananet.eth
← #6295#6297 →

Reading #6296

71Satisfactory

bkc-sim-04.sim.prananet.eth · cell te7u3y · 11/11/2026, 04:47:00 IST · simulated device

PM2.5
38.8 µg/m³
PM10
71.1 µg/m³
Temperature
29.5 °C
Humidity
66.5 %

Arkiv entity

Open in Arkiv explorer ↗
Entity key
0x3ec2981b9009d39bf425d8a582e12c8abca9120f35b20ecc846468e054b89027
Written by (relayer wallet)
0x3a1f21f1c6f05efa35bb7178274b41c8873cca67
Expires
14/11/2026, 04:49:29 IST (3 days after the reading)
Queryable attributes
device = 0x35025af20ff45df8ac04d45f8b91ff1baa61e5a5ens = bkc-sim-04.sim.prananet.ethgeohash = te7u3yepoch = 1794352620nonce = 6296pm25_x10 = 388pm10_x10 = 711simulated = true
Query that finds this record
from("prananet.reading").where(device = 0x35025af20ff45df8ac04d45f8b91ff1baa61e5a5 && nonce = 6296).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
    2epochuint2563217943526200x000000000000000000000000000000000000000000000000000000006af3a5ec
    3pm25_x10uint256323880x0000000000000000000000000000000000000000000000000000000000000184
    4pm10_x10uint256327110x00000000000000000000000000000000000000000000000000000000000002c7
    5temp_x10int256322950x0000000000000000000000000000000000000000000000000000000000000127
    6hum_x10uint256326650x0000000000000000000000000000000000000000000000000000000000000299
    7nonceuint2563262960x0000000000000000000000000000000000000000000000000000000000001898
    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 6296 follows #6295, 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": 1794352620,
  "pm25_x10": 388,
  "pm10_x10": 711,
  "temp_x10": 295,
  "hum_x10": 665,
  "nonce": 6296,
  "signature": "0x",
  "simulated": true
}