Reading #6371
315Very Poorbkc-sim-03.sim.prananet.eth · cell te7u6p · 11/11/2026, 06:02:00 IST · simulated device
PM2.5
139.5 µg/m³
PM10
252.9 µg/m³
Temperature
29.3 °C
Humidity
65.6 %
Arkiv entity
Open in Arkiv explorer ↗- Entity key
- 0xf654ef1b72c3b3ad5a55a9f8589ebb3dd49ac41021138364a04a572cdd440438
- Written by (relayer wallet)
- 0x3a1f21f1c6f05efa35bb7178274b41c8873cca67
- Expires
- 14/11/2026, 06:04:21 IST (3 days after the reading)
- Queryable attributes
- device = 0xd9c632585a2a926bbcecb64241d9cc0ea0d5efd7ens = bkc-sim-03.sim.prananet.ethgeohash = te7u6pepoch = 1794357120nonce = 6371pm25_x10 = 1395pm10_x10 = 2529simulated = true
- Query that finds this record
from("prananet.reading").where(device = 0xd9c632585a2a926bbcecb64241d9cc0ea0d5efd7 && nonce = 6371).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 0xd9c632585a2a926bbcecb64241d9cc0ea0d5efd7 0xd9c632585a2a926bbcecb64241d9cc0ea0d5efd7 2 epoch uint256 32 1794357120 0x000000000000000000000000000000000000000000000000000000006af3b780 3 pm25_x10 uint256 32 1395 0x0000000000000000000000000000000000000000000000000000000000000573 4 pm10_x10 uint256 32 2529 0x00000000000000000000000000000000000000000000000000000000000009e1 5 temp_x10 int256 32 293 0x0000000000000000000000000000000000000000000000000000000000000125 6 hum_x10 uint256 32 656 0x0000000000000000000000000000000000000000000000000000000000000290 7 nonce uint256 32 6371 0x00000000000000000000000000000000000000000000000000000000000018e3 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 0xd9c632585a2a926bbcecb64241d9cc0ea0d5efd7 - ✓Step 5
Nonce strictly increases
Nonce 6371 follows #6370, 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": "0xd9c632585a2a926bbcecb64241d9cc0ea0d5efd7",
"ens": "bkc-sim-03.sim.prananet.eth",
"geohash": "te7u6p",
"epoch": 1794357120,
"pm25_x10": 1395,
"pm10_x10": 2529,
"temp_x10": 293,
"hum_x10": 656,
"nonce": 6371,
"signature": "0x",
"simulated": true
}