13 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Offline validator for a Romanian CUI (company tax ID). Strips an optional 'RO' prefix, applies weights 7-5-3-2-1-7-3-2 to the digits preceding the check digit (right-to-left), sums the weighted products, multiplies by 10...
Check the TLS certificate a domain serves on port 443: whether it chains to a trusted root, matches the name (RFC 9525) and when it expires, with issuer, chain, key and signature algorithm, TLS version and coded findings...
Hex encoding of UTF-8 text — Genesis402 / UnyKorn Operator Network
RFC 4648 base32 encoding — Genesis402 / UnyKorn Operator Network
Decode base58 to bytes — Genesis402 / UnyKorn Operator Network
Decode and checksum-verify a bech32 or bech32m string — Genesis402 / UnyKorn Operator Network
Decode a JWT's header and claims — WITHOUT verifying it — Genesis402 / UnyKorn Operator Network
Base64 and base64url encoding of text or bytes — Genesis402 / UnyKorn Operator Network
Percent-encode and decode a string for URLs — Genesis402 / UnyKorn Operator Network
Decode base64 or base64url to bytes and text — Genesis402 / UnyKorn Operator Network
Decode hex to text and other encodings — Genesis402 / UnyKorn Operator Network
Base58 encoding (Bitcoin alphabet) — Genesis402 / UnyKorn Operator Network
Signs a timestamped receipt for a file's sha256, proving it existed unchanged then. US$0.002 per call; POST the hash.