Reading #6198
344Very Poorbkc-sim-04.sim.prananet.eth · cell te7u3y · 11/11/2026, 03:07:00 IST · simulated device
PM2.5
176.6 µg/m³
PM10
332.0 µg/m³
Temperature
29.0 °C
Humidity
61.0 %
Arkiv entity
Open in Arkiv explorer ↗- Entity key
- 0x481417af1de5b5e4687599a2607df772035fc977acfafbcf418c8bccac038538
- Written by (relayer wallet)
- 0x3a1f21f1c6f05efa35bb7178274b41c8873cca67
- Expires
- 14/11/2026, 03:09:39 IST (3 days after the reading)
- Queryable attributes
- device = 0x35025af20ff45df8ac04d45f8b91ff1baa61e5a5ens = bkc-sim-04.sim.prananet.ethgeohash = te7u3yepoch = 1794346620nonce = 6198pm25_x10 = 1766pm10_x10 = 3320simulated = true
- Query that finds this record
from("prananet.reading").where(device = 0x35025af20ff45df8ac04d45f8b91ff1baa61e5a5 && nonce = 6198).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.
- ✓Step 1
Rebuild the 264-byte message
# Field Type Bytes Value Packed hex 1 device address 20 0x35025af20ff45df8ac04d45f8b91ff1baa61e5a5 0x35025af20ff45df8ac04d45f8b91ff1baa61e5a5 2 epoch uint256 32 1794346620 0x000000000000000000000000000000000000000000000000000000006af38e7c 3 pm25_x10 uint256 32 1766 0x00000000000000000000000000000000000000000000000000000000000006e6 4 pm10_x10 uint256 32 3320 0x0000000000000000000000000000000000000000000000000000000000000cf8 5 temp_x10 int256 32 290 0x0000000000000000000000000000000000000000000000000000000000000122 6 hum_x10 uint256 32 610 0x0000000000000000000000000000000000000000000000000000000000000262 7 nonce uint256 32 6198 0x0000000000000000000000000000000000000000000000000000000000001836 8 chainId uint256 32 11155111 0x0000000000000000000000000000000000000000000000000000000000aa36a7 9 readingsContract address 20 0x9192Fc053e1493EB2B7355192aa3F8e57AAE01d8 0x9192fc053e1493eb2b7355192aa3f8e57aae01d8 abi.encodePacked, no padding between fields. chainId and contract stop replay on other chains. Total: 264 bytes. - …Step 2
Hash it with keccak256
… - …Step 3
Recover the signer from the EIP-191 signature
r 0xs 0xv NaNrecovered … - …Step 4
Compare with the registered device key
registered 0x35025af20ff45df8ac04d45f8b91ff1baa61e5a5 - ✓Step 5
Nonce strictly increases
Nonce 6198 follows #6197, so this reading can't be replayed. - ✓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": 1794346620,
"pm25_x10": 1766,
"pm10_x10": 3320,
"temp_x10": 290,
"hum_x10": 610,
"nonce": 6198,
"signature": "0x",
"simulated": true
}