OSTARA-3339 Specification | Formal Chronology Protocol Definition

1. Scope

This specification defines OSTARA-3339 as a deterministic chronological protocol designed for machine-readable temporal representation and long-term astronomical consistency.

It defines only computable rules. Interpretative or philosophical content is excluded from this layer.

2. Normative Principles

The protocol MUST maintain backward-compatible temporal interpretation.
The protocol MUST remain independent of political or cultural calendar systems.
The protocol MUST support deterministic computation of all canonical epochs.
The protocol MUST allow machine-verifiable parsing without ambiguity.

3. Structural Model

OSTARA-3339 is composed of three primary layers:

CORE Layer

Defines invariant logical constraints and non-computable structural rules.

Astronomical Model

Defines physical celestial mechanics (IAU precession, nutation, stellar motion).

AAY System

Defines chronological encoding derived from computed astronomical alignment states.

4. Interoperability

OSTARA-3339 is interoperable with ISO-8601, RFC3339, Unix time, and Julian Date systems. Any conversion MUST preserve bijective temporal mapping whenever possible.

5. Astronomical Constraints

Astronomical reference systems MAY be used for computation but MUST NOT introduce dependency into CORE invariants.

All astronomical inputs MUST be reducible to deterministic functions defined in the Astronomical Model layer.

6. Canonical Epoch Definition (Normative)

The OSTARA-3339 canonical epoch is defined as a deterministic optimisation problem:

T_OSTARA = argmax_t ( δ_PolarisAa(t) )

Where δ represents the apparent declination of Polaris Aa in the IAU-computed apparent reference frame.

Equivalently:

T_OSTARA = argmin_t ( d(t) )

d(t) = 90° − δ_PolarisAa(t)

7. Deterministic Computability Requirement

The function δ_PolarisAa(t) MUST be computed using:

IAU 2006 precession model, P(t)
IAU 2000A nutation model, N(t)
ICRS to CIRS transformation pipeline
Proper motion propagation of stellar coordinates

R(t) = N(t) · P(t)

ICRS → R(t) → CIRS → apparent sky coordinates

Any valid implementation MUST produce numerically convergent results under identical input ephemerides.

8. Numerical Constraints

The OSTARA-3339 epoch MUST be computable via discrete numerical optimisation methods (grid search, gradient-free maximisation, or equivalent deterministic sweep).

Floating-point tolerance MUST be consistent with IEEE 754 double precision.

9. Stability Requirements

CORE definitions MUST remain invariant across all versions.
New astronomical models MUST NOT invalidate previously defined epochs.
All timestamp conversions MUST remain backward-compatible.

10. Conformance

A compliant implementation MUST interpret CORE invariants, MAY implement Astronomical Model, and MUST support AAY encoding for chronological representation.

Canonical Reference

https://www.ostara.work/ostara-3339/specification