Vector Database & Local-First Sync Architecture Standard
Defines vector storage and local-first synchronization for AI and distributed applications, including embeddings, indexing, replication, conflict handling, and offline operation.
Standards / AI, Knowledge, Data, and Identity / MYTHOS-DAT
Data, State, and Evidence
Artificial intelligence, knowledge and grounding, data and evidence, identity, and learning. Visual language: Model routing lattices, knowledge graphs, provenance flows, identity trust paths, policy gates, and learning loops.
- Standards
- 5
- Pages
- 132
- Companions
- 8
MYTHOS-DAT
Data, State, and Evidence standards
5 of 5
MYTHOS-DAT-0001 MYTHOS-DAT-0002 AI & Agent Observability Semantic Conventions (OpenTelemetry) Standard
Defines OpenTelemetry-aligned observability semantics for models and agents, covering traces, tool calls, prompts, tokens, latency, cost, errors, and privacy-safe telemetry.
MYTHOS-DAT-0003 Data Sovereignty, Privacy Preservation, & Egress Control Standard
Defines data-sovereignty, privacy-preservation, residency, classification, egress control, minimization, and policy enforcement across local, cloud, and hybrid systems.
MYTHOS-DAT-0004 Event Sourcing, CQRS, & Durable State Machine Standard
Defines event sourcing, CQRS, durable state machines, replay, idempotency, ordering, reconciliation, and evidence-preserving state transitions.
MYTHOS-DAT-0005 Tamper-Evident Hash-Chained Ledgers & Evidence Bundle Standard
Defines tamper-evident ledgers and evidence bundles using cryptographic linking, provenance, signatures, retention, verification, and chain-of-custody controls.
Companions
Guides and portfolios for this series
Field guides, living guides, and portfolio editions that decompose or consolidate the MYTHOS-DAT standards.
MYTHOS-FG-DAT-0001 Relational, Document, Graph, Vector, and Time-Series Databases
A database engineering guide comparing data models, transactions, indexing, query planning, replication, sharding, search, vector similarity, temporal data, operations, and polyglot persistence.
MYTHOS-FG-DAT-0002 State Modeling, Event Sourcing, CQRS, and Durable State Machines
A state-engineering guide covering domain state, invariants, state machines, events, event sourcing, projections, CQRS, commands, concurrency, snapshots, durable execution, compensation, migration, and verification.
MYTHOS-FG-DAT-0003 Storage, Search, Backup, Archival, and Recovery
A data-protection guide covering block, file, object, checksummed storage, indexing and search, lifecycle tiers, snapshots, backups, immutability, archives, retention, restore, disaster recovery, ransomware resilience, and evidence.
MYTHOS-FG-DAT-0004 OpenTelemetry, Semantic Conventions, and Observability Pipelines
An observability-engineering guide covering telemetry design, resources, traces, metrics, logs, events, baggage, semantic conventions, OTLP, collector pipelines, sampling, enrichment, routing, storage, privacy, reliability, and governance.
MYTHOS-FG-DAT-0005 SRE, SLOs, Error Budgets, Capacity, and Reliability Engineering
A site-reliability guide covering user-centered reliability, SLIs, SLOs, error budgets, risk, toil, capacity, performance, alerting, incidents, change safety, resilience testing, disaster recovery, and reliability governance.
MYTHOS-FG-DAT-0006 Tamper-Evident Evidence, Provenance, and Audit Systems
An evidence-engineering guide covering event identity, provenance, signed statements, hash chains, Merkle logs, transparency services, receipts, attestations, audit trails, time, custody, privacy, verification, retention, and incident use.
MYTHOS-FG-DAT-0007 Data Sovereignty, Privacy, Local-First Synchronization, and Egress
A data-control guide covering sovereignty, privacy engineering, data mapping, local-first architecture, offline-first state, CRDTs, synchronization, access control, key ownership, egress policy, deletion, cross-border flows, and user agency.
MYTHOS-GUIDE-DAT-0001 Data, State, Reliability, and Observability Engineering
A comprehensive guide to data models, databases, authoritative state, event sourcing, CQRS, storage, search, backup, observability, SRE, evidence systems, privacy, sovereignty, and recovery.
Candidate status describes publication review state. It does not establish certification, legal compliance, implementation conformance, benchmark reproduction, or product readiness.