[third-door] Absent R&D-blueprint proposals: sensorimotor trajectory invariants + ADR-DAG conformal embedding #21

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opened 2026-07-12 06:02:06 +00:00 by core-labs · 1 comment
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Part of the Third-Door fidelity backlog (see #15 and docs/research/third-door-blueprint-fidelity.md). Two whole R&D-Revised proposals never landed. Tracking here; each can be split into its own issue when scheduled.

A. Continuous-space trajectory invariants + zero-fabrication (R&D-Revised §2.2 → core-rs/src/sensorimotor.rs)

  • Relative holonomy H(t) = V₁(t)·Ṽ₂(t); divergence D = ∫ log(1 + ‖H·H̃ − 1‖_F) dt; replay-determinism invariant D < ε_trajectory (~1e-5).
  • Hamiltonian energy boundary: continuous phantom action must satisfy E_exertion = ∫ Tr(Ω·Ω̃) dt ≤ κ·E_sensory; any motor output without sensory grounding triggers boundary closure.
  • Blueprint places this in the Rust kernel. Note: gated by the Zig/Rust substrate doctrine — Ring-1 only, at the component gate.

B. ADR-DAG conformal embedding (R&D-Revised §2.4 → core/adr/validator.py)

  • Ψ(M): SHA-256 of ADR markdown → 10 × 3-byte segments → coefficients c_k ∈ [−1,1] → 10 basis bivectors → simple-bivector projection (B_raw − ½⟨B_raw∧B_raw⟩₄) → normalize.
  • Master architecture blade = wedge of load-bearing ADR bivectors; new-proposal drift = ‖B_p ∧ A_master‖.
  • Cross-check against the existing core/abi/geometric_delta_validator.py before adding a parallel validator.

Acceptance criteria

  • Each sub-item split into its own scoped issue with a design note before implementation.
  • B verified against the deterministic embedding (replay-identical Ψ(M) for identical M).
Part of the Third-Door fidelity backlog (see #15 and `docs/research/third-door-blueprint-fidelity.md`). Two whole R&D-Revised proposals never landed. Tracking here; each can be split into its own issue when scheduled. ## A. Continuous-space trajectory invariants + zero-fabrication (R&D-Revised §2.2 → `core-rs/src/sensorimotor.rs`) - Relative holonomy `H(t) = V₁(t)·Ṽ₂(t)`; divergence `D = ∫ log(1 + ‖H·H̃ − 1‖_F) dt`; replay-determinism invariant `D < ε_trajectory (~1e-5)`. - Hamiltonian energy boundary: continuous phantom action must satisfy `E_exertion = ∫ Tr(Ω·Ω̃) dt ≤ κ·E_sensory`; any motor output without sensory grounding triggers boundary closure. - Blueprint places this in the Rust kernel. Note: gated by the Zig/Rust substrate doctrine — Ring-1 only, at the component gate. ## B. ADR-DAG conformal embedding (R&D-Revised §2.4 → `core/adr/validator.py`) - `Ψ(M)`: SHA-256 of ADR markdown → 10 × 3-byte segments → coefficients `c_k ∈ [−1,1]` → 10 basis bivectors → simple-bivector projection (`B_raw − ½⟨B_raw∧B_raw⟩₄`) → normalize. - Master architecture blade = wedge of load-bearing ADR bivectors; new-proposal drift = `‖B_p ∧ A_master‖`. - Cross-check against the existing `core/abi/geometric_delta_validator.py` before adding a parallel validator. ## Acceptance criteria - Each sub-item split into its own scoped issue with a design note before implementation. - B verified against the deterministic embedding (replay-identical `Ψ(M)` for identical M).
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Closed — complete on main via PR #35 (0b8e46ce, head db924550).

Acceptance

Sub-item Status
A. Trajectory invariants + zero-fabrication (R&D §2.2) 🟢 core/physics/trajectory_invariants.py (Python authority)
B. ADR-DAG conformal embedding (R&D §2.4) 🟢 core/adr/validator.py (Ψ(M) deterministic; not GeometricDelta ABI)
Replay-identical Ψ(M) for identical M 🟢 tested

Explicit non-goals

  • Rust Ring-1 port (optional acceleration; Python remains source of truth)
  • Serve-path wiring of trajectory/ADR-DAG gates

Validation: 18 new tests + goldtether/wave regression + smoke green on merge tip.

**Closed — complete on main via PR #35** (`0b8e46ce`, head `db924550`). ### Acceptance | Sub-item | Status | |----------|--------| | A. Trajectory invariants + zero-fabrication (R&D §2.2) | 🟢 `core/physics/trajectory_invariants.py` (Python authority) | | B. ADR-DAG conformal embedding (R&D §2.4) | 🟢 `core/adr/validator.py` (Ψ(M) deterministic; not GeometricDelta ABI) | | Replay-identical Ψ(M) for identical M | 🟢 tested | ### Explicit non-goals - Rust Ring-1 port (optional acceleration; Python remains source of truth) - Serve-path wiring of trajectory/ADR-DAG gates Validation: 18 new tests + goldtether/wave regression + smoke green on merge tip.
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Reference: core-labs/core#21
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