@@ -458,7 +458,7 @@ transformation remains open under research line S10.
 | # | Operator (glyph) | Physics / effect | Grammar role | Contract |
 |---|------------------|------------------|--------------|----------|
 | 1 | **Emission** (AL) | Sources EPI from vacuum at pre-existing basal νf; leaves νf unchanged | Generator (U1a) | Sources new form without writing capacity, pressure or phase |
-| 2 | **Reception** (EN) | Integrates incoming resonance | — | Must not reduce C(t) |
+| 2 | **Reception** (EN) | Integrates incoming resonance | — | Leaves stored ΔNFR and dEPI unchanged, hence immediate operator-local C(t) unchanged |
 | 3 | **Coherence** (IL) | Negative feedback; reduces \|ΔNFR\|, raises C(t) | Stabilizer (U2) | Must not reduce C(t) (outside dissonance test) |
 | 4 | **Dissonance** (OZ) | Controlled instability; raises \|ΔNFR\| | Destabilizer (U2), bifurcation trigger (U4a), closure (U1b) | Must increase \|ΔNFR\| |
 | 5 | **Coupling** (UM) | Phase synchronization link `φᵢ → φⱼ` | Requires phase check (U3) | Valid only if `\|wrap(φᵢ − φⱼ)\| ≤ Δφ_max` |
@@ -634,6 +634,22 @@ one intact stage per committed event and binds ordered ZHIR observations to the
 ordered target support. An adjacent flow abstention remains observable but
 cannot enter a represented schedule product.
 
+Every accepted two-phase EN stage also seals one ordered
+`ReceptionStageObservation` per target. One owner-bound pre-EN snapshot supplies
+target/neighbor EPI, semantic kinds, optional source detection and metrics; the
+observation verifies final EPI, kind and tracked sources after all graph-mutating
+stage checks and before warning publication. Disabled tracking preserves opaque
+legacy source metadata without claiming its contents. Event execution binds
+these observations to ordered
+targets. Their `auxiliary_stability_certified` field is hard false: this is one
+finite provenance record, while counter/log cocycles and trajectory invariance
+remain open.
+On directed support, `source -> receiver` defines the incoming EN orientation:
+the numeric snapshot reads predecessors and source discovery follows the same
+path direction. Source discovery is optional telemetry: it neither selects nor
+gates the direct-neighbour numeric blend and may include more distant ancestors.
+The affine Reception certificate remains undirected-only.
+
 With `include_stage_certificates=True`, interval capture is implied and every
 accepted event returns an `ExecutedGlyphStage`. The event runtime binds the
 executor-owned pointwise certificate for AL/SHA/VAL/NUL/ZHIR/NAV or all-target
 
@@ -458,7 +458,7 @@ transformation remains open under research line S10.
 | # | Operator (glyph) | Physics / effect | Grammar role | Contract |
 |---|------------------|------------------|--------------|----------|
 | 1 | **Emission** (AL) | Sources EPI from vacuum at pre-existing basal νf; leaves νf unchanged | Generator (U1a) | Sources new form without writing capacity, pressure or phase |
-| 2 | **Reception** (EN) | Integrates incoming resonance | — | Must not reduce C(t) |
+| 2 | **Reception** (EN) | Integrates incoming resonance | — | Leaves stored ΔNFR and dEPI unchanged, hence immediate operator-local C(t) unchanged |
 | 3 | **Coherence** (IL) | Negative feedback; reduces \|ΔNFR\|, raises C(t) | Stabilizer (U2) | Must not reduce C(t) (outside dissonance test) |
 | 4 | **Dissonance** (OZ) | Controlled instability; raises \|ΔNFR\| | Destabilizer (U2), bifurcation trigger (U4a), closure (U1b) | Must increase \|ΔNFR\| |
 | 5 | **Coupling** (UM) | Phase synchronization link `φᵢ → φⱼ` | Requires phase check (U3) | Valid only if `\|wrap(φᵢ − φⱼ)\| ≤ Δφ_max` |
@@ -634,6 +634,22 @@ one intact stage per committed event and binds ordered ZHIR observations to the
 ordered target support. An adjacent flow abstention remains observable but
 cannot enter a represented schedule product.
 
+Every accepted two-phase EN stage also seals one ordered
+`ReceptionStageObservation` per target. One owner-bound pre-EN snapshot supplies
+target/neighbor EPI, semantic kinds, optional source detection and metrics; the
+observation verifies final EPI, kind and tracked sources after all graph-mutating
+stage checks and before warning publication. Disabled tracking preserves opaque
+legacy source metadata without claiming its contents. Event execution binds
+these observations to ordered
+targets. Their `auxiliary_stability_certified` field is hard false: this is one
+finite provenance record, while counter/log cocycles and trajectory invariance
+remain open.
+On directed support, `source -> receiver` defines the incoming EN orientation:
+the numeric snapshot reads predecessors and source discovery follows the same
+path direction. Source discovery is optional telemetry: it neither selects nor
+gates the direct-neighbour numeric blend and may include more distant ancestors.
+The affine Reception certificate remains undirected-only.
+
 With `include_stage_certificates=True`, interval capture is implied and every
 accepted event returns an `ExecutedGlyphStage`. The event runtime binds the
 executor-owned pointwise certificate for AL/SHA/VAL/NUL/ZHIR/NAV or all-target
 
@@ -4,6 +4,40 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+### Fixed — 2026-09-11 Reception temporal evidence
+
+- Centralized graph-backed Reception reads in one owner-bound, value-sealed
+  pre-EN snapshot. Direct operator execution, low-level graph dispatch and the
+  all-target Jacobi stage now use the same target, neighbour, kind and optional
+  source inputs, and reject a stale or cross-graph prepared snapshot before any
+  structural write.
+- Added one sealed `ReceptionStageObservation` per accepted two-phase target.
+  It records pre/post EPI and kind plus the exact pre-EN neighbour/source read;
+  tracked source metadata is checked again after metrics, monitors, any
+  requested pressure refresh and schedule recording, before final warning
+  publication. Late EPI,
+  kind or tracked-source mutation rejects the stage and rolls back graph-owned
+  state without leaking that warning. Disabled source tracking preserves opaque
+  legacy metadata without claiming its contents.
+- Carried Reception observations through `NetworkStageResult`,
+  `ExecutedGlyphStage` and the enclosing event-execution seal. This is finite
+  provenance evidence, not a proof of auxiliary-state stability.
+- Made Reception metrics state their read boundaries explicitly, separated
+  stored-metadata presence from the pre-EN source snapshot, and changed the
+  coarse effectiveness predicate to `abs(DeltaNFR) < 0.1`, sharing that policy
+  constant with Coherence. Corrected the low-level EN doctest to the canonical
+  half-mix result `0.45`.
+- Aligned the public strict precondition with the canonical validator and made
+  empty-source advice a single non-gating warning. Standalone metrics now reuse
+  the same empty-neighbour and missing-EPI policy as execution.
+- Defined directed Reception input as incoming `source -> receiver` arcs across
+  graph dispatch, object dispatch, domain preflight, metrics and optional source
+  telemetry. Source discovery remains diagnostic and does not select or gate the
+  direct neighbours used by the numeric blend.
+- Corrected EN's postcondition boundary: the jump leaves stored `DeltaNFR` and
+  `dEPI` unchanged, so operator-local `C(t)` is immediately unchanged. Pressure
+  refresh is a later observation and may change coherence.
+
 ### Added — 2026-09-11 Binary64 REMESH boundary and P2 causal binding
 
 - Centralized the production delayed-REMESH scalar evaluation in
 
@@ -118,6 +118,15 @@ Silence, Expansion, Contraction, Mutation and Transition; Coupling's
 overlapping phase/topology proposal; Dissonance's overlapping pressure
 proposal; Self-organization's child-support and hierarchy merge; and
 Recursivity's deduplicated network advisory.
+Reception additionally materializes one owner-bound, value-sealed pre-EN read
+per target. The same record supplies its target and neighbour EPI values,
+semantic kinds, optional source detection and metrics; all graph-backed direct
+entry points reuse the same kernel and reject stale or cross-graph prepared
+state before writing.
+For directed support, `source -> receiver` defines an incoming EN input, so the
+numeric blend reads predecessors and source detection uses the same causality.
+That detection is optional telemetry; it does not select or gate the direct
+neighbours integrated by EN.
 Coherence contracts each target's pressure magnitude and locks its phase from
 that shared snapshot;
 its canonical stage/global and radius-local structural `C(t)` fields are
@@ -364,8 +373,15 @@ one sealed `MutationStageDecisionObservation` per target, including its complete
 threshold certificate, phase/regime decision, acceleration/bifurcation read-out
 and U4 context. `NetworkStageResult` retains these observations even when no EPI
 certificate was requested; opt-in event-stage evidence carries them forward.
+Every accepted two-phase EN stage likewise preserves one sealed
+`ReceptionStageObservation` per target. It binds pre/post EPI and kind to one
+pre-EN neighbour/source snapshot and verifies the final kind and tracked source
+record after all graph-mutating stage checks and before warning publication.
+Its hard-false auxiliary-stability
+claim keeps this finite provenance separate from a trajectory invariant.
 Each `ExecutedGlyphStage` is value-sealed across its event, endpoints,
-certificate, adjacent-flow records and Mutation observations. The execution
+certificate, adjacent-flow records, Mutation observations and Reception
+observations. The execution
 result requires one intact stage per committed event in the same order, so
 construction or replacement cannot promote a represented-gain claim.
 
 
@@ -35,7 +35,7 @@ separate stage contract.
 | Operator | Glyph | Primary channel | Scale | Direct postcondition |
 | --- | --- | --- | --- | --- |
 | Emission | AL | EPI | node | EPI does not decrease; frequency, pressure and phase stay unchanged |
-| Reception | EN | EPI | node | Coherence does not decrease during coherent integration |
+| Reception | EN | EPI | node | Immediate operator-local C(t), pressure and change rate stay unchanged |
 | Resonance | RA | EPI | node | EPI structural identity is preserved |
 | Silence | SHA | structural frequency | node | Structural frequency does not increase |
 | Expansion | VAL | structural frequency | node | Structural frequency does not decrease |
@@ -311,11 +311,41 @@ live metadata can change. Direct construction and coherent `dataclasses.replace`
 records remain unsealed. Event execution carries these observations into the
 corresponding opt-in `ExecutedGlyphStage`.
 
+Every accepted two-phase EN `NetworkStageResult` contains one ordered, sealed
+`ReceptionStageObservation` per target. A single owner-bound pre-EN snapshot
+drives the target/neighbor EPI calculation, semantic-kind selection, optional
+source detection and EN metrics. The observation records pre/post EPI and kind,
+the materialized neighbour read and the tracked source record. Final EPI, kind
+and tracked sources are checked after monitors, metrics, any requested pressure
+refresh and schedule recording, before final warning publication; divergence
+rejects the transaction without leaking that warning. With source tracking
+disabled,
+legacy metadata is left opaque: the stage observation reports only whether its
+key is present, while separately collected Reception metrics also report whether
+the stored value has the canonical list-of-triples form. Standalone
+`reception_metrics` calls set `source_tracking_enabled=None` because old metadata
+does not identify the call that produced it. `auxiliary_stability_certified` is
+always false because this record describes one accepted finite stage rather
+than a trajectory invariant.
+
+On directed support, an arc `source -> receiver` is an incoming EN input: the
+snapshot reads predecessors and source detection follows paths in that same
+direction. Detection is optional telemetry and neither selects nor gates the
+direct-neighbour numeric blend; its finite search can include more distant
+ancestors. The represented affine Reception certificate remains restricted to
+undirected support and therefore abstains on a directed stage.
+
+Direct EN execution publishes its empty-source advisory during the pre-write
+read, so treating warnings as errors aborts before the direct mutation. The
+transactional two-phase stage defers that advisory until its result has been
+validated; a warning promoted to an error then rolls the entire stage back.
+
 `ExecutedGlyphStage` also seals its complete event, endpoint, certificate,
-adjacent-flow and decision payload. `OperatorEventExecutionResult` requires one
-intact stage for every committed event, preserves event order, and binds ZHIR
-observation order to `target_nodes`. A nested flow abstention remains recordable
-but cannot be promoted into a flow or composition certificate.
+adjacent-flow, Mutation-decision and Reception-observation payload.
+`OperatorEventExecutionResult` requires one intact stage for every committed
+event, preserves event order, and binds both ZHIR and EN observation order to
+`target_nodes`. A nested flow abstention remains recordable but cannot be
+promoted into a flow or composition certificate.
 
 Setting `include_stage_certificates=True` is also opt-in and implies flow
 capture. `glyph_stage_evidence` then contains one `ExecutedGlyphStage` for every
 
@@ -347,7 +347,7 @@ def derive_start_operators_from_physics() -> frozenset[str]:
 
     **Why Others Cannot Start:**
 
-    - **reception**: Needs external source + existing EPI to anchor
+    - **reception**: Blends existing EPI fields and has no generative term
     - **coherence**: Stabilizes existing form, cannot create from null
     - **dissonance**: Perturbs existing structure, needs EPI > 0
     - **coupling**: Links existing nodes, requires both nodes active
@@ -495,8 +495,9 @@ def increases_structural_pressure(operator: str) -> bool:
     **Why others are NOT destabilizers:**
     - TRANSITION (NAV): a *controlled* trajectory between attractors — it is a
       generator/closure, not an assigned U2 destabilizer.
-    - RECEPTION (EN): integrates incoming resonance (contract: must not reduce
-      C(t)) — neutral, not positive feedback.
+    - RECEPTION (EN): integrates the neighbour EPI field while leaving stored
+      pressure and change rate fixed at the immediate jump boundary — neutral,
+      not positive feedback.
     - CONTRACTION (NUL): reduces νf while densifying ΔNFR by the reciprocal
       factor; the registry treats it as a simplifier rather than U2 debt.
     """
 
@@ -59,14 +59,14 @@
 # EN (Reception) Thresholds
 # -------------------------
 
-# Maximum EPI for reception - EN requires nodes with receptive capacity
-# According to TNFR.pdf §2.2.1, reception integrates external coherence
-# into local structure. If EPI is saturated, node cannot receive more coherence.
+# Selected stored-EPI upper admission bound for Reception. This policy ceiling
+# is not a theorem about receptive capacity; the runtime compares the signed
+# stored coordinate and otherwise blends the current neighbour EPI field.
 EPI_SATURATION_MAX: float = 0.9
 
-# Maximum DNFR for stable reception - EN requires low dissonance
-# Excessive reorganization pressure prevents effective integration
-# of external coherence. Consider IL (Coherence) first to stabilize.
+# Selected signed-pressure upper admission bound for Reception. It is not an
+# absolute-pressure stability threshold and does not certify post-refresh C(t).
+# EN itself leaves this stored pressure unchanged.
 DNFR_RECEPTION_MAX: float = 0.15
 
 # -------------------------