trazaeo

trazaeo is the Rust core for verifiable provenance in Earth observation and climate data workflows.

It provides:

• content hashing with blake3_root_v1
• C2PA-compatible SHA-256 hard bindings for local content descriptors
• signed capture, transform, and publish envelopes
• C2PA-style ingredients and actions for transform/publish interop
• checkpoint manifests and delivery proof verification
• trust policy evaluation
• proof-log commitments with a Solana adaptor
• a native Solana proof-log program under programs/proof-log/
• Python bindings via PyO3

The V1 protocol covers three primary use cases:

• source-device capture, where a sensor or edge device signs captured bytes
• transport receipt, where a ground station or relay attests to received bytes or helper processing
• dataset transforms and publication, where one or more inputs are turned into derived artifacts and checkpointed for audit

Repository:

• GitHub: https://github.com/endcorp-hq/provenance
• Spec: https://github.com/endcorp-hq/provenance/blob/main/TRAZAEO_V1_SPEC.md
• Docs: https://endcorp-hq.github.io/provenance

Build locally:

cargo build --manifest-path trazaeo/Cargo.toml

Run tests:

cargo test --manifest-path trazaeo/Cargo.toml --all-targets --features bao-range-proofs,python-proof-log-rpc
cargo test --manifest-path trazaeo/programs/proof-log/Cargo.toml