Core Concepts

Term	What it means in OpenOrigins
Provenance	The complete, verifiable history of a digital asset.
Tamper‑Proof Hash	A SHA‑3‑512 digest of the media file. Any byte‑level change alters the hash.
Immutable Anchoring	Writing that hash to a public blockchain so no single party can rewrite history.
Secure Metadata	Capture‑time facts (camera model, GPS, creator) signed alongside the hash.

Glossary

Anchor ID – UUID returned when you call POST /v1/media/anchor. Block Height – The block number in which your hash was included. Merkle Path – Ordered list of sibling hashes proving inclusion in a Merkle root. Status (1/2/3) – 1 = processing, 2 = failed, 3 = anchored (see API ref). oai_citation:0‡OpenOrigins X‑RateLimit‑Remaining – Header indicating how many requests you have left in the current window.