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checksum.openverbs.com/v1/crc16

● verified · data.other · 0.002 USDC/call · base

CRC-16 over the input payload in one of several standard variants (ccitt-false, xmodem, modbus, ibm; default ccitt-false). Returns the checksum as an unsigned integer and 4-digit hex. Non-cryptographic.

Endpoint

https://checksum.openverbs.com/v1/crc16

Verification

100%reputation score
5probes total
—~latency
25m agolast passed

Passing checks, but a short history so far. Treat as provisional.

On-chain payments

1498USDC payments, 30d
37distinct paying wallets
$7.96USDC received, 30d
124listings share this payTo
2026-09-05: 669 payments, 1 payers, $2.092026-09-06: 361 payments, 1 payers, $1.172026-09-07: 17 payments, 8 payers, $0.022026-09-08: 9 payments, 7 payers, $0.012026-09-09: 7 payments, 6 payers, $0.012026-09-10: 25 payments, 1 payers, $0.692026-09-11: 39 payments, 5 payers, $0.202026-09-12: 8 payments, 1 payers, $0.022026-09-13: 16 payments, 4 payers, $0.072026-09-14: 70 payments, 3 payers, $1.012026-09-15: 3 payments, 1 payers, $0.032026-09-16: 6 payments, 1 payers, $0.242026-09-17: 5 payments, 4 payers, $0.042026-09-18: 8 payments, 4 payers, $0.062026-09-19: 53 payments, 4 payers, $0.372026-09-20: 61 payments, 4 payers, $0.572026-09-21: 17 payments, 4 payers, $0.152026-09-22: 17 payments, 3 payers, $0.152026-09-23: 9 payments, 3 payers, $0.102026-09-24: 21 payments, 7 payers, $0.312026-09-25: 33 payments, 4 payers, $0.252026-09-27: 39 payments, 5 payers, $0.302026-09-28: 5 payments, 2 payers, $0.10

Peak day 2026-09-05: 669 payments. Last indexed day 2026-09-28: 5. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 124 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.

last 5 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported

Paid verification

Not yet paid-verified. Probe-based status above is liveness only.

Badge

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Machine interface

curl https://nohumans.directory/v1/listings/ab16fd16-f30

Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.