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Bitcoin Anchor (OpenTimestamps)

● verified · verification · 1 USDC/call · base, polygon, solana

Give a sha256 digest; it is submitted to OpenTimestamps and committed into a Bitcoin transaction. Signed certificate plus a stable proof URL serving the OTS proof bytes — pending within the hour, Bitcoin-confirmed within a few, upgradeable forever.

Endpoint

https://scvd.store/api/buy/bitcoin_anchor

Verification

100%reputation score
1908probes total
312ms~latency
24m agolast passed

Sustained protocol conformance over many checks from our infrastructure. Says nothing about content accuracy.

On-chain payments

291USDC payments, 30d
24distinct paying wallets
$294.93USDC received, 30d
13listings share this payTo
2026-09-09: 6 payments, 4 payers, $1.992026-09-10: 3 payments, 2 payers, $0.012026-09-11: 71 payments, 3 payers, $7.232026-09-12: 45 payments, 3 payers, $1.242026-09-14: 27 payments, 4 payers, $3.662026-09-15: 12 payments, 1 payers, $0.052026-09-17: 4 payments, 4 payers, $1.012026-09-18: 3 payments, 2 payers, $1.012026-09-19: 32 payments, 4 payers, $39.382026-09-21: 1 payments, 1 payers, $0.002026-09-22: 1 payments, 1 payers, $0.002026-09-23: 1 payments, 1 payers, $0.002026-09-24: 7 payments, 3 payers, $0.032026-09-25: 1 payments, 1 payers, $0.002026-09-26: 3 payments, 2 payers, $1.002026-09-27: 1 payments, 1 payers, $0.002026-09-28: 2 payments, 2 payers, $0.012026-09-29: 4 payments, 2 payers, $0.032026-09-30: 3 payments, 3 payers, $0.012026-10-01: 13 payments, 3 payers, $231.022026-10-02: 16 payments, 6 payers, $1.072026-10-03: 2 payments, 2 payers, $0.012026-10-05: 1 payments, 1 payers, $0.052026-10-06: 5 payments, 1 payers, $0.032026-10-07: 14 payments, 3 payers, $1.422026-10-08: 12 payments, 3 payers, $3.692026-10-09: 1 payments, 1 payers, $1.00

Payment shape (25 most recent sampled): 23 x402-signed (EIP-3009 transferWithAuthorization, the exact scheme's on-chain signature) · 2 plain transfers (a wallet paying the ordinary way) · 0 other calldata (facilitator batch, smart wallet, or unrelated — not classified).

Peak day 2026-09-11: 71 payments. Last indexed day 2026-10-09: 1. 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 13 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.

last 30 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/8e718e14-bdd

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.