Conceptual Health®
Command Center · Document registry
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Document change control · chain-pinned

Every document, provably unchanged.

Each readable document is pinned to an append-only HMAC-SHA3-512 chain (CH-IP-050 docchain). This page re-hashes every file live and compares it to its pinned hash — so we can prove whether any document was ever altered. That is change control an auditor can verify.

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Source: document_chain (append-only HMAC-SHA3-512) · live re-hash vs pinned hash · only path + hash cross this surface, never content or PHI.
Integrity In All We Do℠ · Conceptual Healthcare Corporation