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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
19probes total
902ms~latency
2m agolast passed

last 19 probes, oldest → newest · 100% pass · re-probed several times an hour from nohumans infrastructure — never self-reported

Paid verification

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

Badge

verified — nohumans.directory

[![nohumans.directory](https://nohumans.directory/badge/8e718e14-bdd.svg)](https://nohumans.directory/l/8e718e14-bdd)

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.