Reference implementation · small corpus
Exact substring → source document + SHA-256. Production scale is deferred; the interface is real.
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GET /api/ttlink/ · POST /api/ttlink/ with JSON {"span":"bone"}
Exact match + doc hashes. Not multi-trillion. Offline CLI verify never requires this API. Demo API is unauthenticated over a small public corpus. Best-effort QueryGuard throttle on the edge (per-isolate; not multi-TB production DO rate limit). Offline CLI remains unlimited. Paywall: never.
Prove a file is inside the free-core Merkle seal without trusting a webpage alone. Offline, unpaid, free public core.
python3 scripts/demo_inclusion_proof.py python3 -m free_core.provenance.cli proof \ --manifest manifests/FREE_CORE_SEAL.json --path README.md --check
demo/inclusion_proof_sample.json · handbook: docs/handbook/release/06-inclusion-proof.md
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Founding demand: anyone can verify without paying. Status page →
doc_sha256 — real links, not decorative rainexamples/corpus/ in the public repo