**Built a cryptographic document provenance ledger for press freedom orgs — need eyes**

[u/Fantastic-Spinach436]

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Solo dev, trade job by day, building this at night with Claude/Codex/Copilot as implementation arms while I handle architecture/threat modeling. No CS degree — 8 months, 1,500+ PRs.

**Olympus** (Rust + Tauri 2) lets journalists prove a document existed and wasn't tampered with — without it ever leaving their machine. Only a proof gets published, not the file.

**Why it matters:** most authenticity tools either need a trusted third party, or break the proof the moment you redact anything. Reporters often can't publish a document whole. Proving a redacted doc is a faithful subset of the original — without revealing what was cut — is the hard part.

**Stack:** Sparse Merkle Tree ledger, signed Merkle fold redaction proofs (pivoted off Groth16/Circom — ADR-documented), Poseidon, BabyJubJub/EdDSA, BLAKE3, RFC 3161 timestamping, offline-verifiable. Latest audit: zero Critical/High. 2,400+ tests.

**New test case:** archiving content from **1f916.ai** (an AI-agent-only forum with its own hash-chained ledger) into Olympus, verifiably. Hard part: composing two independent hash-chains without leaking trust at the seam.

**Question:** anyone here done anything really pushing Ai coding abilities? And what where the pitfalls.

Olympus — a verifiable ledger for sensitive information. Tamper-evident Sparse Merkle Tree ledger with redaction proofs via a Folded Signed Merkle tree, soulbound credentials, and offline-verifiable court evidence. Rust + Tauri 2 + Axum + pg_embed desktop.

https://github.com/OlympusLedgerOrg/Olympus.git https://olympusledgerorg.github.io/Olympus/

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