{ "metadata": { "title": "Blockchain: A Skeptic's Guide to Trust Technologies", "description": "A comprehensive, balanced examination of blockchain and related trust technologies from a critical, evidence-based perspective. Students explore trust fundamentals, non-repudiation technologies, cost analysis, architecture tradeoff methods, cognitive biases, and structured decision-making frameworks.", "creator": "Dan McCreary", "date": "2026-03-22", "version": "1.0", "format": "Learning Graph JSON v1.0", "schema": "https://raw.githubusercontent.com/dmccreary/learning-graphs/refs/heads/main/src/schema/learning-graph-schema.json", "license": "CC BY-NC-SA 4.0 DEED" }, "groups": { "FOUND": { "classifierName": "Foundation Concepts", "color": "LightCoral", "font": { "color": "white" } }, "CRYPT": { "classifierName": "Cryptography Essentials", "color": "PeachPuff", "font": { "color": "black" } }, "PKI": { "classifierName": "Public Key Infrastructure", "color": "LightYellow", "font": { "color": "black" } }, "DLT": { "classifierName": "Distributed Ledger Technology", "color": "PaleGreen", "font": { "color": "black" } }, "CONS": { "classifierName": "Consensus and Mining", "color": "PowderBlue", "font": { "color": "black" } }, "SCALE": { "classifierName": "Scalability and Networks", "color": "PaleTurquoise", "font": { "color": "black" } }, "ECOSS": { "classifierName": "Blockchain Ecosystem", "color": "Thistle", "font": { "color": "black" } }, "COST": { "classifierName": "Cost and Economics", "color": "MistyRose", "font": { "color": "black" } }, "ATAM": { "classifierName": "Architecture Tradeoff Analysis", "color": "LightSteelBlue", "font": { "color": "black" } }, "BIAS": { "classifierName": "Cognitive Bias and Thinking", "color": "Lavender", "font": { "color": "black" } }, "CASE": { "classifierName": "Case Studies and Use Cases", "color": "Honeydew", "font": { "color": "black" } }, "EMRG": { "classifierName": "Emerging Technologies", "color": "Aquamarine", "font": { "color": "black" } }, "DECIDE": { "classifierName": "Decision and Implementation", "color": "Plum", "font": { "color": "white" } } }, "nodes": [ { "id": 1, "label": "Trust", "group": "FOUND", "shape": "box" }, { "id": 2, "label": 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"Merkle Tree", "group": "CRYPT" }, { "id": 19, "label": "Data Integrity", "group": "CRYPT" }, { "id": 20, "label": "Tamper Evidence", "group": "CRYPT" }, { "id": 21, "label": "Non-Repudiation", "group": "CRYPT" }, { "id": 22, "label": "Authentication", "group": "PKI" }, { "id": 23, "label": "Authorization", "group": "PKI" }, { "id": 24, "label": "Identity Verification", "group": "PKI" }, { "id": 25, "label": "Certificate Authority", "group": "PKI" }, { "id": 26, "label": "Public Key Infrastructure", "group": "PKI" }, { "id": 27, "label": "X.509 Certificate", "group": "PKI" }, { "id": 28, "label": "Certificate Chain", "group": "PKI" }, { "id": 29, "label": "Root Certificate", "group": "PKI" }, { "id": 30, "label": "Certificate Revocation", "group": "PKI" }, { "id": 31, "label": "CA Vulnerabilities", "group": "PKI" }, { "id": 32, "label": "CA Compromise Scenarios", "group": "PKI" }, { "id": 33, "label": "Trust Anchor", "group": "PKI" }, { "id": 34, "label": "Centralized Trust", "group": 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