Glossary
Blockchain IP terminology
Plain-language definitions for the proof methods, standards, and legal concepts behind mltio.
- SHA-256
- A cryptographic hash function that produces a unique 64-character fingerprint of any file. Changing one bit of the file produces a completely different hash.
- Maximum proof
- mltio's free certificate combining OpenTimestamps, RFC 3161 EU TSA, and Sigstore Rekor in one attestation.
- OP_RETURN
- A Bitcoin transaction output type that embeds up to 80 bytes of data on-chain — used to permanently store your file hash.
- OpenTimestamps (OTS)
- A decentralized timestamping protocol that anchors hashes to the Bitcoin blockchain via calendar servers.
- Sigstore Rekor
- A public transparency log maintained by the Sigstore project. Each entry has a UUID verifiable at rekor.sigstore.dev.
- RFC 3161 / TSA
- Qualified timestamp tokens from recognized Time Stamping Authorities — legally recognized under EU eIDAS.
- Evidence pack
- A JSON export with certificate metadata, verification instructions, and links to independent proof sources.
- Zero-knowledge vault
- Client-side AES-256-GCM encryption before upload. mltio stores only ciphertext — your passphrase never leaves your device.