The technical paper. Eight axes, two coins, one chain.

An eight-dimensional health metric, paired with a regulated dual-coin network.

Conceptual Health is a measurement protocol and an economic protocol bound together. The measurement protocol — the Master Equation — collapses lived-life signals into eight axes and a single composite CH score. The economic protocol — HCR plus HCC — pays patients for the actions that move CH up, and pays them again for consenting to the de-identified use of the data those actions generate.

This paper specifies both protocols at engineering precision. We define the axis derivations and their literature anchors; the weighting derivation and sensitivity analysis; the issuance, halving, and reserve mechanics for HCR; the marketplace mechanics, IRB gating, and revenue split for HCC; the chain settlement protocol that records every economic event; and the security architecture that protects identity, consent, and clinical data across the whole stack.

One score. Eight axes. One linear combination.

Each axis is a normalized 0–100 sub-score derived from validated clinical instruments and lived-life signals. The composite Conceptual Health score, denoted CH, is a weighted linear combination:

The weight vector w was derived from a multi-stage process: literature-anchored prior, principal-component analysis on a longitudinal cohort, expert Delphi adjustment, and sensitivity testing under bootstrap resampling. Section 3.7 details the derivation; the bootstrap distribution shows weight stability of ±0.012 (95% CI) across the cohort.

Earned for axis lifts. Spent inside the network.

HCR is a healthcare-utility currency issued in exchange for measurable axis lifts. It is not a security; it is not a stablecoin; it is a domain-specific medium of exchange whose primary use is settling clinical, network, and identity costs inside Conceptual Health. Where conversion to fiat is permitted, it is mediated by hc.exchange under state MTL custody.

Hard cap

21,000,000,000 HCR

Issuance schedule

Halving on patient-count milestones (10k / 50k / 250k / 1M / 5M / 25M)

Genesis allocation

7-bucket split — see §4.4 for full table

Reserves

Reserves model documented in §4.5; physical custody arrangements pending Phase 2. Reserve attestation will be published quarterly once a qualified trust company is engaged and the first audit cycle opens.

Issuance authority

Network Clinics + axis-attestation oracles. Enforced on-chain.

Settlement finality

Block-time target 5s (live value: 5s); production-load percentile data publishes once Phase 2 traffic is sustained.

Earned for consent. Floats against research demand.

HCC is a data-economy token whose price floats with researcher demand for de-identified, IRB-approved cohort access. Patients earn HCC by signing per-study consent and granting time-bounded access; the platform retains a 12% fee; 88% accrues to the patient. HCC is not pegged. Floor price is bounded only by the operating cost of running the marketplace.

Five stacked multipliers boost a patient's HCC yield: rarity (axis lifts a study can't easily source), recency (data within 30 days), depth (full-fidelity FHIR vs. summary), longitudinal continuity (≥ 12 months), and explicit cohort fit (study-specific bonuses set by sponsor). The full multiplier algorithm is in §5.6.

Every economic event, on a public ledger.

Conceptual Health Chain is a permissioned settlement layer purpose-built for healthcare economic events. Today (Phase 1) the chain runs Proof-of-Authority (CH-PoA) with one validator at Conceptual Health® HQ. Phase 2 expands the validator set with seats drawn from licensed healthcare institutions, regulated custodians, and an independent oversight observer; the consensus model migrates to BFT with a published quorum threshold ratified as a governance event before activation. Live validator count is exposed at /api/v1/chain/validators.

Block content is public; PHI is never written on-chain. Every block records token transfers, axis-lift attestations, consent events, marketplace purchases, and refund settlements. Hash-linked off-chain blobs reference the underlying clinical events, accessible only to credentialed parties through the regulator portal.

Defense in depth, by name.

Identity is a hardware-rooted, biometric-bound, FIDO2 + passkey credential. Recovery is multi-method (printed Shamir shares, family quorum, attorney-of-record). Encryption at rest is AES-256-GCM with FIPS 140-3 validated modules; in transit is TLS 1.3 with X25519 key agreement. Token signing uses Ed25519. The full key-rotation, escrow, and incident-response procedures are in §9.4.